This document contains slides from a lecture on the domains of life. It discusses the three domain tree of life proposed by Carl Woese based on rRNA comparisons. Key results were that defining "prokaryotes" as a group renders it non-monophyletic, and that there are two major monophyletic groups of prokaryotes, termed Prokaryotic G1 and Prokaryotic G2. The slides focus on these results from Woese's rRNA tree regarding the relationships between organisms and the structure of the tree of life.
BIS2C. Biodiversity and the Tree of Life. 2014. L11. Symbioses and the Human ...Jonathan Eisen
BIS2C. Biodiversity and the Tree of Life.
At UC Davis Spring 2014.
Lecture 11.
Symbioses and the Human MIcrobiome
Slides for Lectures by Jonathan Eisen
BIS2C. Biodiversity and the Tree of Life. 2014. L7. Intro to Microbial Divers...Jonathan Eisen
BIS2C. Biodiversity and the Tree of Life.
At UC Davis Spring 2014.
Lecture 7.
Introduction to Microbial Diversity.
Slides for Lectures by Jonathan Eisen
BIS2C. Biodiversity and the Tree of Life. 2014. L8. Intro to Microbial Divers...Jonathan Eisen
BIS2C. Biodiversity and the Tree of Life.
At UC Davis Spring 2014.
Lecture 8.
Introduction to Microbial Diversity, part 2.
Slides for Lectures by Jonathan Eisen
BIS2C. Biodiversity and the Tree of Life. 2014. L11. Symbioses and the Human ...Jonathan Eisen
BIS2C. Biodiversity and the Tree of Life.
At UC Davis Spring 2014.
Lecture 11.
Symbioses and the Human MIcrobiome
Slides for Lectures by Jonathan Eisen
BIS2C. Biodiversity and the Tree of Life. 2014. L7. Intro to Microbial Divers...Jonathan Eisen
BIS2C. Biodiversity and the Tree of Life.
At UC Davis Spring 2014.
Lecture 7.
Introduction to Microbial Diversity.
Slides for Lectures by Jonathan Eisen
BIS2C. Biodiversity and the Tree of Life. 2014. L8. Intro to Microbial Divers...Jonathan Eisen
BIS2C. Biodiversity and the Tree of Life.
At UC Davis Spring 2014.
Lecture 8.
Introduction to Microbial Diversity, part 2.
Slides for Lectures by Jonathan Eisen
Innovations in Sequencing & Bioinformatics
Talk for
Healthy Central Valley Together Research Workshop
Jonathan A. Eisen University of California, Davis
January 31, 2024 linktr.ee/jonathaneisen
Thoughts on UC Davis' COVID Current ActionsJonathan Eisen
Slides I used for a presentation to Chancellor May's leadership council about the current state of UC Davis' response to COVID and how it could be improved
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptxRASHMI M G
Abnormal or anomalous secondary growth in plants. It defines secondary growth as an increase in plant girth due to vascular cambium or cork cambium. Anomalous secondary growth does not follow the normal pattern of a single vascular cambium producing xylem internally and phloem externally.
ESR spectroscopy in liquid food and beverages.pptxPRIYANKA PATEL
With increasing population, people need to rely on packaged food stuffs. Packaging of food materials requires the preservation of food. There are various methods for the treatment of food to preserve them and irradiation treatment of food is one of them. It is the most common and the most harmless method for the food preservation as it does not alter the necessary micronutrients of food materials. Although irradiated food doesn’t cause any harm to the human health but still the quality assessment of food is required to provide consumers with necessary information about the food. ESR spectroscopy is the most sophisticated way to investigate the quality of the food and the free radicals induced during the processing of the food. ESR spin trapping technique is useful for the detection of highly unstable radicals in the food. The antioxidant capability of liquid food and beverages in mainly performed by spin trapping technique.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
Phenomics assisted breeding in crop improvementIshaGoswami9
As the population is increasing and will reach about 9 billion upto 2050. Also due to climate change, it is difficult to meet the food requirement of such a large population. Facing the challenges presented by resource shortages, climate
change, and increasing global population, crop yield and quality need to be improved in a sustainable way over the coming decades. Genetic improvement by breeding is the best way to increase crop productivity. With the rapid progression of functional
genomics, an increasing number of crop genomes have been sequenced and dozens of genes influencing key agronomic traits have been identified. However, current genome sequence information has not been adequately exploited for understanding
the complex characteristics of multiple gene, owing to a lack of crop phenotypic data. Efficient, automatic, and accurate technologies and platforms that can capture phenotypic data that can
be linked to genomics information for crop improvement at all growth stages have become as important as genotyping. Thus,
high-throughput phenotyping has become the major bottleneck restricting crop breeding. Plant phenomics has been defined as the high-throughput, accurate acquisition and analysis of multi-dimensional phenotypes
during crop growing stages at the organism level, including the cell, tissue, organ, individual plant, plot, and field levels. With the rapid development of novel sensors, imaging technology,
and analysis methods, numerous infrastructure platforms have been developed for phenotyping.
Nucleophilic Addition of carbonyl compounds.pptxSSR02
Nucleophilic addition is the most important reaction of carbonyls. Not just aldehydes and ketones, but also carboxylic acid derivatives in general.
Carbonyls undergo addition reactions with a large range of nucleophiles.
Comparing the relative basicity of the nucleophile and the product is extremely helpful in determining how reversible the addition reaction is. Reactions with Grignards and hydrides are irreversible. Reactions with weak bases like halides and carboxylates generally don’t happen.
Electronic effects (inductive effects, electron donation) have a large impact on reactivity.
Large groups adjacent to the carbonyl will slow the rate of reaction.
Neutral nucleophiles can also add to carbonyls, although their additions are generally slower and more reversible. Acid catalysis is sometimes employed to increase the rate of addition.
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...Wasswaderrick3
In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...University of Maribor
Slides from talk:
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Inter-Society Networking Panel GRSS/MTT-S/CIS Panel Session: Promoting Connection and Cooperation
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BIS2C_2020. Lecture 7. The Domains of Life.
1. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
BIS2C
Biodiversity & the Tree of Life
Spring 2019
Lecture 7:
The Domains of Life
Prof. Jonathan Eisen
2. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Anna’s Hummingbird in Davis, CA. April 7, 2020
• In previous classes I would leave my screen
saver on with pictures from around UC Davis
and Davis area as people walked into class
•
3. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Learning Goals
1. Understand ways in which the view of the tree of life
has changed over time
2. Understand similarities and differences between
prokaryotic and eukaryotic cell structures
3. Understand the uses of sequence alignments and
comparisons in inferring the structure of the tree of life
4. Compare the structure and implications of the two
current main competing models for the tree of life
4. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
!6: The Tree of Life
!7: The Domains of Life
!8: Phylogenetic Diversity of Microbes
Lecture 7 Context
5. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Lecture 7 Outline
• Background and Context
• The Domains of Life
!Introduction
!“Prokaryotes” vs. Eukaryotes
!Three Domain Tree of Life
!Two Domain Tree of Life
6. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Lecture 7 Outline
• Background and Context
• The Domains of Life
!Introduction
!“Prokaryotes” vs. Eukaryotes
!Three Domain Tree of Life
!Two Domain Tree of Life
7. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Background: Lab Connections
• Lab 2: Tree of life and LUCA
• Lab 1: Classification and the tree of life
• Lab 1: Monophyletic groups and Linnaean
ranks
• Lab 1: Phylogenetic terminology
8. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Background: Review of Lecture 6
9. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Single
Tree?
L6: Tree of Life vs. Trees of Life
10. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
L6: Tree of Life vs. Trees of Life
Multiple Trees?
11. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Hypothesis 1:
Separate Origins
Hypothesis 2:
Common Origin
Two Hypotheses
L6: Tree of Life vs. Trees of Life
How Can We Choose Which
Hypothesis is Best?
12. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
List traits found in all organisms.
• Made up of cells
• Use of DNA as a genetic material
• Use of ACTG in DNA
• Use of ACUG in RNA
• Three letter genetic code
• Central dogma (DNA » RNA » protein)
• Use water as a solvent
• Lipoprotein cell envelope
• 20 core amino acids in proteins
• Live on Earth
• Ribosome for translation
• RNA polymerase proteins
• Acquires energy from environment
• Store energy in chemicals
L6: Universal Traits
Yes: not evidence
for common
ancestry.
No: evidence for
common ancestry.
Could trait have
evolved with a
reasonable
probability in
separate origins of
life?
13. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
L6: Homology vs. Homoplasy: Ribosome for Translation
14. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
• Recreate conditions of early Earth
• Model and theory
• Study Earth history
• Inferences from comparing organisms
L6: How Do We Study The Origin(s) of Life?
Absolutely no way a separate origin of
life would use the same ribosomes,
with 50+ proteins, multiple rRNAs, and
similar 3D structures and mechanisms
15. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
NO WAY: “uses ribosome for translation” could have evolved in
separate origins of life.
Then only possibility is a single tree.
L6: Homology vs. Homoplasy: Ribosome for Translation
Ribosome For Translation
16. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Universal Trait
Trait shared by all organisms.
L6: Universal Homology
17. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Universal Homology
Trait shared by all organisms that could not
have arisen in separate origins of life and
thus is evidence for common ancestry.
L6: Universal Homology
18. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Hypothesis 2:
Common Origin
Hypothesis 1:
Separate Origins
Two Hypotheses
L6: Tree of Life vs. Trees of Life
The existence of Universal
Homologies means all life on
Earth is related.
19. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Lecture 7 Outline
• Background and Context
• The Domains of Life
!Introduction
!“Prokaryotes” vs. Eukaryotes
!Three Domain Tree of Life
!Two Domain Tree of Life
20. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Lecture 7 Outline
• Background and Context
• The Domains of Life
!Introduction
!“Prokaryotes” vs. Eukaryotes
!Three Domain Tree of Life
!Two Domain Tree of Life
21. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Single Tree
A Single Tree of Life
22. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Now, we care about
the order.
A Single Tree of Life
23. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Now, we care about
the order.
A Single Tree of Life
24. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
The Tree of Life
25. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Ernst Haeckel 1866
www.mblwhoilibrary.org
Plantae AnimaliaProtista
26. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Whittaker – Five Kingdoms 1969
Plantae Animalia
Protista
Fungi
Monera
27. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
EukaryotesProkaryotes
Chatton 1937 & others: Prokaryotes vs. Eukaryotes
28. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Lecture 7 Outline
• Background and Context
• The Domains of Life
!Introduction
!“Prokaryotes” vs. Eukaryotes
!Three Domain Tree of Life
!Two Domain Tree of Life
29. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Cell Structure Observations
Prokaryotes vs. Eukaryotes
30. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotes vs. Eukaryotes
EukaryotesProkaryotes
No Nucleus Nucleus
Two Main Kinds of Structures
31. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotes vs. Eukaryotes
EukaryotesProkaryotes
No Nucleus Nucleus
Two Main Kinds of Structures
What Other Differences Are There?
32. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotes vs. Eukaryotes
EukaryotesProkaryotes
No Nucleus Nucleus
Two Main Kinds of Structures
What Other Differences Are There?
Mitochondria
Endoplasmic
Reticulum
Diploid
MeiosisBinary
Fission
Mitosis
Golgi
Linear DNACircular DNA
Haploid
Chromatin
33. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
EukaryotesProkaryotes
Prokaryotes vs. Eukaryotes
Interpreted As Implying a Tree
34. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotic
Eukaryotic
P1 P2 P3 E1 E2 E3P4
Prokaryotes vs. Eukaryotes
Interpreted as
implying this tree
because this would
require only one event
for the nucleus origin
35. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotic
Eukaryotic
P1 P2 P3 E1 E2 E3P4
Prokaryotes vs. Eukaryotes
Interpreted as
implying this tree
because this would
require only one event
for the nucleus origin
36. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotic
Eukaryotic
P1 P2 P3 E1 E2 E3P4
Prokaryotes vs. Eukaryotes
Interpreted as
implying this tree
because this would
require only one event
for the nucleus origin
37. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4
Prokaryotic
Eukaryotic
Prokaryotes vs. Eukaryotes
Interpreted As Implying This Tree Because That Would
Require Only One Event For Nucleus Origin
But this is a mistake
since this tree, also
only requires one
event for origin of
the nucleus
38. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4
Prokaryotic
Eukaryotic
Prokaryotes vs. Eukaryotes
As does this tree
39. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotic
Eukaryotic
P1 P2 P3 E1 E2 E3P4
Prokaryotes vs. Eukaryotes
So no reason to
assume this is the
correct tree, even
though many did
40. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
• Side lesson — Defining groups based on the
absence of a trait is a bad idea …
Prokaryotes vs. Eukaryotes
41. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Lecture 7 Outline
• Background and Context
• Problems with Life v11’s Tree of Life
• The Domains of Life
!Introduction
!“Prokaryotes” vs. Eukaryotes
!Three Domain Tree of Life
!Two Domain Tree of Life
42. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Three Domain Tree of Life
• There is a better way …
43. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Diversity of Life of Earth
44. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
http://mcb.illinois.edu/faculty/profile/1204
1970s - Woese et al.
Carl Woese
45. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
rRNA rRNArRNA
ACUGC
ACCUAU
CGUUCG
ACUCC
AGCUAU
CGAUCG
ACCCC
AGCUCU
CGCUCG
Taxa Characters
S ACUGCACCUAUCGUUCG
R ACUCCACCUAUCGUUCG
E ACUCCAGCUAUCGAUCG
F ACUCCAGGUAUCGAUCG
C ACCCCAGCUCUCGCUCG
W ACCCCAGCUCUGGCUCG
Taxa Characters
S ACUGCACCUAUCGUUCG
E ACUCCAGCUAUCGAUCG
C ACCCCAGCUCUCGCUCG
Woese rRNA Tree of Life
46. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
• Skeletons
!All vertebrates have skeletons
!The structure of the skeleton differs between
species and skeletal comparisons can be
used to infer phylogeny
• rRNA
!All organisms have ribosomal RNA
!The sequence of the ribosomal RNA genes
differ between species and sequence
comparisons can be used to infer phylogeny
Woese rRNA Tree of Life vs Skeletons
47. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotic
Eukaryotic
Woese rRNA Tree of Life
48. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotic
Eukaryotic
Tree is unrooted.
Why?
Woese rRNA Tree of Life
49. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Slide from Professor Moore’s Lecture 3
50. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotic
Eukaryotic
What is Our
Outgroup?
Woese rRNA Tree of Life
51. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotic
Eukaryotic
What is Our
Outgroup?
Woese rRNA Tree of Life
52. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
• Rooted using a special method that is similar
to using an outgroup but is a little different
• Involves using ancient gene duplication
events
Rooting the Tree of Life
53. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
Rooted Woese rRNA Tree of Life
54. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
Thought Question
Given this tree, if you group
prokaryotic organisms
together into “prokaryotes”
this group can be described
as:
A: Not monophyletic
B: A clade
C. A natural grouping
D: Prophyletic
E: None of the above
55. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
Given this tree, if you group
prokaryotic organisms
together into “prokaryotes”
this group can be described
as:
A: Not monophyletic
B: A clade
C. A natural grouping
D: Prophyletic
E: None of the above
Thought Question
56. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Key Result #1:
“Prokaryotes” Not
Monophyletic
“Prokaryotes” Eukaryotes
Prokaryotic
Eukaryotic
Rooted Woese rRNA Tree of Life
57. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Key Result #1:
“Prokaryotes” Not
Monophyletic
“Prokaryotes” Eukaryotes
Prokaryotic
Eukaryotic
Rooted Woese rRNA Tree of Life
We Put Unnatural Groupings in Quotes
58. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Key Result #1:
“Prokaryotes” Not
Monophyletic
“Prokaryotes” Eukaryotes
Prokaryotic
Eukaryotic
FOCUS ON
THESE KEY
RESULTS
Rooted Woese rRNA Tree of Life
59. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotic G1
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
Key Result #2:
Two Major Monophyletic
Groups of “Prokaryotes”
Prokaryotic G2
Rooted Woese rRNA Tree of Life
60. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
Key Result #3:
Three Major
Monophyletic Groups
Rooted Woese rRNA Tree of LifeRooted Woese rRNA Tree of Life
Prokaryotic G1 Prokaryotic G2 Eukaryotes
61. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
Eukaryotes
Rooted Woese rRNA Tree of Life
Key Result #3:
Three Major
Monophyletic Groups
Prokaryotic G1 Prokaryotic G2
62. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
New Classification Level?
Rooted Woese rRNA Tree of Life
Key Result #3:
Three Major
Monophyletic Groups
EukaryotesProkaryotic G1 Prokaryotic G2
63. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Slide from Professor Moore’s Lecture 2
64. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Domain: ????
Slide from Professor Moore’s Lecture 2
65. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
New Classification Level?
Rooted Woese rRNA Tree of Life
Key Result #3:
Three Major
Monophyletic Groups
EukaryotesProkaryotic G1 Prokaryotic G2
66. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
The Three Domain
Tree of Life
EukaryotesProkaryotic G1 Prokaryotic G2
The Three Domains
67. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryotesEubacteria Prokaryotic G2
Domain 1:
Named “Eubacteria”
(aka “true” bacteria)
68. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryotesEubacteria Prokaryotic G2
Domain 2:
What Should We Call It?
69. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Figure 25.16 Some Crenarchaeotes Like It Hot
70. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Figure 25.17 Extreme Halophiles
71. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryotesEubacteria Archaebacteria
Domain 2:
Named “Archaebacteria”
(Archae from Greek for
ancient)
72. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryotesEubacteria Archaebacteria
BAD BAD Domain 2:
Named “Archaebacteria”
(Archae from Greek for
ancient)
73. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryotesEubacteria Archaea
Domain 2:
Renamed Archaea
(Archae from Greek for
Ancient)
74. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryotesEubacteria Archaea
Domain 2:
Renamed Archaea
(Archae from Greek for
Ancient)
BAD BAD BAD BAD
BAD BAD BAD BAD
75. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryotesEubacteria Archaea
76. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryotesEubacteria Archaea
Domain 1:
Named “Eubacteria”
(aka “true” bacteria)
77. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryotesBacteria Archaea
Domain 1:
Removed the “Eu” part
of the name
78. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryaBacteria Archaea
Domain 3:
Named Eukarya
79. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryotesBacteria Archaea
Domain 3:
Many Use Eukaryotes
80. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
P1 P2 P3 E1 E2 E3P4 P5 P6 P7
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryaBacteria Archaea
Three Domains
81. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 A3
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryaBacteria Archaea
Three Domains
Re-labelled
individual taxa
82. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 A3
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryaBacteria Archaea
Key Result #4:
Archaea closer to Eukarya
than to Bacteria
83. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 A3
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryaBacteria Archaea
Key Result #4:
Archaea closer to Eukarya
than to Bacteria
Some shared derived traits
84. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotes vs. Eukaryotes
EukaryotesProkaryotes
No Nucleus Nucleus
Two Main Kinds of Structures
What Other Differences Are There?
Mitochondria
Endoplasmic
Reticulum
Diploid
MeiosisBinary
Fission
Mitosis
Golgi
Linear DNACircular DNA
Haploid
Chromatin
85. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Prokaryotes vs. Eukaryotes
EukaryotesProkaryotes
No Nucleus Nucleus
Two Main Kinds of Structures
What Other Differences Are There?
Mitochondria
Endoplasmic
Reticulum
Diploid
MeiosisBinary
Fission
Mitosis
Golgi
Linear DNACircular DNA
Haploid
Chromatin
86. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Lecture 7 Outline
• Background and Context
• Problems with Life v11’s Tree of Life
• The Domains of life
!Introduction
!“Prokaryotes” vs. Eukaryotes
!Three Domain Tree of Life
!Two Domain Tree of Life
87. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 A3
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryaBacteria Archaea
Three Domain Tree of
Life Supported Widely for
Many Year
88. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Loki’s Castle
• Loki’s Castle
89. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Lokiarchaea named after Loki’s Castle Vent Site
90. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 Loki
Prokaryotic
Eukaryotic
EukaryaBacteria Archaea
Phylogenetic Trees
Using Genomes from
Lokiarchaea Look Like
This
Alternative to Three Domain Tree of Life
91. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Thorarchaeota
http://sites.utexas.edu/baker-lab/2016/01/29/introducing-thorarchaeota/
92. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 Loki
Prokaryotic
Eukaryotic
EukaryaBacteria Archaea
Lokiarchaea and
Thorarchaea Together
in Trees
Alternative to Three Domain Tree of Life
Thor
93. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Asgard Archaea
94. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 Asgard
Prokaryotic
Eukaryotic
EukaryaBacteria Archaea
A New Clade - The
Asgard Archaea - and
and Alternative Tree of
Life
Alternative to Three Domain Tree of Life
95. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Asgard Archaea
96. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Asgard Archaea
Something is Wrong Here
97. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Complaining on Twitter …
100. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Helarchaeota
101. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Freya not next … Helarchaeota
102. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Alternative to Three Domain Tree of Life
103. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 A3
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryaBacteria Archaea
Three Domain Tree
104. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 Asgard
Prokaryotic
Eukaryotic
EukaryaBacteria Archaea
New Tree with Asgard
Archaea
Alternative to Three Domain Tree of Life
105. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 A3
Prokaryotic
Eukaryotic
The Three Domain Tree of Life
EukaryaBacteria Archaea
Three Domain Tree
106. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 Asgard
Prokaryotic
Eukaryotic
EukaryaBacteria Archaea
New Tree with Asgard
Archaea
Alternative to Three Domain Tree of Life
107. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
• Method developments
!Same data, with different methods,
sometimes gives different results
!Some methods are more prone to artifacts
and errors than others
• Differences between genes
• Better taxonomic sampling
!Can improve resolution in trees
!Can help get around some method problems
Reasons for Changes in the Tree of Life
Two Domain Tree of Life
108. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 Asgard
Prokaryotic
Eukaryotic
EukaryaBacteria Archaea
How Does This Differ
From The Three
Domain Tree of Life?
Alternative to Three Domain Tree of Life
109. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 Asgard
Prokaryotic
Eukaryotic
EukaryaBacteria "Archaea”
Alternative to Three Domain Tree of Life
Key Difference #1:
Archaea not
monophyletic
110. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 Asgard
Prokaryotic
Eukaryotic
EukaryaBacteria “Archaea”
Alternative to Three Domain Tree of Life
Key Difference #2:
Asgard “Archaea”
Closer to Eukaryotes
than to Other “Archaea”
111. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 Asgard
Prokaryotic
Eukaryotic
EukaryaBacteria "Archaea”
Alternative to Three Domain Tree of Life
Key Difference #3:
Two Major
Monophyletic Groups
112. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 Asgard
Prokaryotic
Eukaryotic
Bacteria
Alternative to Three Domain Tree of Life
Renaming The Groups
Archaea
113. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 Asgard
Prokaryotic
Eukaryotic
Bacteria
Two Domain Tree of Life
Two Domain Tree of Life
Archaea
114. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
B1 B2 B3 E1 E2 E3B4 A1 A2 Asgard
Prokaryotic
Eukaryotic
Bacteria
Two Domain Tree of Life
Two Domain Tree of Life
Archaea
Eukarya
“Prokaryotic
Archaea”
115. Slides by Jonathan Eisen for BIS2C at UC Davis Spring 2020
Past, Present and Future
!6: The Tree of Life
!7: The Domains of Life
!8: Phylogenetic Diversity of
Microbes