This document discusses genetic markers and their uses. It defines a genetic marker as any phenotypic difference controlled by genes that can be used to study inheritance or selection of a target gene. The document lists three main types of genetic markers: morphological, biochemical, and chromosomal. It provides examples and shortcomings of each type. Genetic markers are pieces of DNA that are associated with traits and can be used to compare individuals by detecting allelic variations on chromosomes.
RAPD markers are decamer DNA fragments.
RAPD is a type of PCR reaction.
as the name suggest it is a fast method when compared to the traditional PCR medthod.
What is Genome,Genome mapping,types of Genome mapping,linkage or genetic mapping,Physical mapping,Somatic cell hybridization
Radiation hybridization ,Fish( =fluorescence in - situ hybridization),Types of probes for FISH,applications,Molecular markers,Rflp(= Restriction fragment length polymorphism),RFLPs may have the following Applications;Advantages of rflp,disAdvantages of rflp, Rapd(=Random amplification of polymorphic DNA),Process of rapd, Difference between rflp &rapd
RAPD markers are decamer DNA fragments.
RAPD is a type of PCR reaction.
as the name suggest it is a fast method when compared to the traditional PCR medthod.
What is Genome,Genome mapping,types of Genome mapping,linkage or genetic mapping,Physical mapping,Somatic cell hybridization
Radiation hybridization ,Fish( =fluorescence in - situ hybridization),Types of probes for FISH,applications,Molecular markers,Rflp(= Restriction fragment length polymorphism),RFLPs may have the following Applications;Advantages of rflp,disAdvantages of rflp, Rapd(=Random amplification of polymorphic DNA),Process of rapd, Difference between rflp &rapd
Morphological, Cytological and Biochemical MarkersJay Khaniya
I've put a lot of effort for create this presentation. This'll help to lot of biotechnology and agricultural students for there assignments and exam study.
All about molecular markers like - hybridization based markers (RFLP), pcr based markers (RAPD, SSR, SNP) etc. Morphological and biochemical markers also covered.
Role of Marker Assisted Selection in Plant Resistance RandeepChoudhary2
Topic Role of Marker Assisted Selection in Plant Resistance is described in detail including some case studies.
Types of markers used in genetic engineering and biotechnology are described in detail.
Marker assisted selection is a process whereby a marker (morphological, biochemical or one
based on DNA/RNA variation) is used for indirect selection of a genetic determinant of a trait
of interest. Since the first reported linkage of an agronomically important trait (a quantitative
trait locus affecting seed weight) to a simply controlled gene (seed colour) in common bean by
Sax (1923), it has taken more than 60 years for genetic markers to become a qualified tool for
plant breeding programs. In rice, the Xieyou 218 hybrid was the first to be developed through
MAS to select individuals carrying a bacterial blight-resistant gene. Marker-assisted selection
(MAS) can be applied at the seedling stage, with high precision and reductions in cost. Genetic
mapping of major genes and quantitative traits loci (QTLs) for agricultural traits is increasing
the integration of biotechnology with the conventional breeding process. Traits related to
disease resistance to pathogens and to the quality of some crop products are offering some
important examples of a possible routinary application of MAS. For more complex traits, like
yield and abiotic stress tolerance, a number of constraints have severe limitations on an efficient
utilization of MAS in plant breeding. However, the economic and biological constraints such
as a low return of investment in small-grain cereal breeding, lack of diagnostic markers, and
the prevalence of QTL-background effects hinder the broad implementation of MAS but over
the past 2 decades, a number of R-genes conferring resistance to a diverse range of pathogens
have been mapped in many crops using molecular markers.
Genetic markers, Classical markers, DNA markers, MICROSATELLITES, AFLP, SNP: Single Nucleotide Polymorphism, QTL: Quantitative Trait Locus, Activities of marker-assisted breeding, Marker-based breeding and conventional breeding Perspectives,The application of molecular technologies to plant breeding is still facing the following drawbacks and/or challenges
Molecular markers for measuring genetic diversity Zohaib HUSSAIN
Molecular markers for measuring genetic diversity
Introduction:
The molecular basis of the essential biological phenomena in plants is crucial for the effective conservation, management, and efficient utilization of plant genetic resources (PGR).
Determining genetic diversity can be based on morphological, biochemical, and molecular types of information. However, molecular markers have advantages over other kinds, where they show genetic differences on a more detailed level without interferences from environmental factors, and where they involve techniques that provide fast results detailing genetic diversity
Comparison of different methods
Morphological characterization does not require expensive technology but large tracts of land are often required for these experiments, making it possibly more expensive than molecular assessment. These traits are often susceptible to phenotypic plasticity; conversely, this allows assessment of diversity in the presence of environmental variation.
Biochemical analysis is based on the separation of proteins into specific banding patterns. It is a fast method which requires only small amounts of biological material. However, only a limited number of enzymes are available and thus, the resolution of diversity is limited.
Molecular analyses comprise a large variety of DNA molecular markers, which can be employed for analysis of variation. Different markers have different genetic qualities (they can be dominant or co-dominant, can amplify anonymous or characterized loci, can contain expressed or non-expressed sequences, etc.).
Genetic marker
The concept of genetic markers is not a new one; in the nineteenth century, Gregor Mendel employed phenotype-based genetic markers in his experiments. Later, phenotype-based genetic markers for Drosophila melanogaster led to the founding of the theory of genetic linkage. A genetic marker is an easily identifiable piece of genetic material, usually DNA that can be used in the laboratory to tell apart cells, individuals, populations, or species. The use of genetic markers begins with extracting proteins or chemicals (for biochemical markers) or DNA (for molecular markers) from tissues of the plant (for example, seeds, foliage, pollen, sometimes woody tissues).
Molecular markers In genetics, a molecular marker (identified as genetic marker) is a fragment of DNA that is associated with a certain location within the genome. Molecular markers which detect variation at the DNA level such as nucleotide changes: deletion, duplication, inversion and/or insertion. Markers can exhibit two modes of inheritance, i.e. dominant/recessive or co-dominant. If the genetic pattern of homozygotes can be distinguished from that of heterozygotes, then a marker is said to be co-dominant. Generally co-dominant markers are more informative than the
A genetic marker is a gene or DNA sequence with a known location on a chromosome and associated with a particular gene or trait. It can be described as a variation, which may arise due to mutation or alteration in the genomic loci that can be observed. A genetic marker may be a short DNA sequence, such as a sequence surrounding a single base-pair change (single nucleotide polymorphism, SNP), or a long one, like mini & microsatellites.
This slide contains the detailed information of bhageerath H tool for homology modelling (for tertiary structure prediction) designed by SCFBio, IIT Delhi.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
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This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
2. Gene of known function and location
Gene that allows studying the inheritance of that gene
Genetic information resides in the genome
Genetic Marker
Any phenotypic difference controlled by genes, that can be
used for studying recombination processes or selection of a more
or less closely associated target gene
Anything in the genome that is variable and can be used to
compare individuals
Detectable allelic variation on a chromosome can be a
phenotype, can also be a unique detectable sequence of DNA
3. Marker is a piece of DNA
molecule that is
associated with a certain
trait of a organism
Types of
Markers
Morphological
Biochemical Genetic
Chromosomal
4. Animals are selected based on
appearance
Eg. PIGMENTATION
Disadvantage: lack of polymorphism
5. Animals are selected based on biochemical
properties
Eg. Hb, AMYLASE, BLOOD GROUPS ETC.
Disadvantage:
Sex limited
Age dependent
Influenced by environment
It covers less than 10% of genome
6. Animals are selected based on
structural & numerical variations
Eg. Structural and Numerical Variations
Structural- Deletions, Insertions etc.
Numerical- Trisomy, Monosomy, Nullysomy
Disadvantage: low polymorphism
7.
8. Organism can be differentiated by analysis of patterns derived from cleavage of their
DNA.
Technique is mainly based on the special enzyme called Restriction Endonucleases.
In RFLP restriction enzyme digested DNA is resolved by gel electrophoresis and then
blotted to a nitro cellulose membrane.
Specific binding pattern can be visualized by hybridization with labeled probe.
Different size or length of restriction fragments are produced such polymorphism
are used to distinguish plant species, genotype etc.
