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Reticulate Evolution In The Saccharomyces Genus
This document summarizes recent research on the reticulate evolution of yeast species in the Saccharomyces genus. It discusses several new genome sequences that have helped uncover the evolutionary history. Wild Saccharomyces species from bioprospecting projects are revealing new genetic diversity. There is evidence of introgressions between species in mitochondrial DNA and the 2μm plasmid. Phylogenetic trees show four main mitochondrial haplogroups and reticulation at the nuclear level. Gene flow appears to be more frequent between species for mitochondrial and plasmid genes than for nuclear genes, although incomplete lineage sorting also impacts nuclear phylogenies.
Reticulate Evolution In The Saccharomyces Genus
- 1. RETICULATE EVOLUTION INTHE SACCHAROMYCES GENUS David Peris, Marie Curie Postdoctoral Fellow Department of Food Biotechnology SBYBI Group 3rd October 2018 ISSY34 Yeast Odyssey: from nature to industry Evolutionary genomics session @djperis
- 2. New genomes forunderstanding evolution and domestication Liti et al 2009 Almeida et al 2015 Borneman et al 2016 Gallone et al 2016 Gonçalves et al 2016 Gayevskiy et al 2016 Yue et al 2017 Peter et al 2018 Legras et al 2018 Duan et al 2018
- 3. Bioprospecting projects areunravelling new Wild Saccharomyces Bergström et al 2014 Leducq et al 2016 Yue et al 2017 Almeida et al 2014 Peris & Quinn et al 2016 Bing et al 2016 Peris et al in preparation
- 4. Evidence of COX3introgressions Biogeographic Realms Afrotropic Australasia Indo-Malay Palearctic Nearctic Neotropical Oceania Unknown COX3 1 10
- 5. Four main mitochondrialhaplogroups
- 6. Mitochondrial introgressions mainlyclose to selfish elements
- 7. Evidence of introgressionsin the 2µm plasmid REP1 (2µm plasmid)
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- 9. Evidence of geneflow at nuclear level DBVPG6044 YPS128 yHAB335 UOPS03-461.4 Y12 SK1 DBVPG6765 UFRJ50816 yHDPN32 YPS138 yHDPN24 UWOPS91-917.1 CBS432 yHDPN23 N44 IFO1815 yHAB336 IFO1802 ZP591 IFO1803 yHKS300 CBS10644 ZP960 CBS7001 yHCT77 yHAB482 yHAB60 yHAB447 yHAB521 ZP964 yHRVM108 CDFM21L.1 FM1318 yHCT69 yHCT99 yHAB94 Patagonia B/Holarctic Patagonia A Australasia Holarctic NA/EU South America A South America B Oceania Asia A Asia B Asia A EU Asia B Asia A S. cerevisiae America A/EU Far East America B America C DBVPG6765
- 10. Internal branches areless supported...
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- 12. Mitochondrial/2µm gene flowis more frequent between species than nuclear Nuclear Mitochondrial/2µm Gene flow Nuclear Mitochondrial 2µm plasmid ILS
- 13. Acknowledgments Amparo Querol Querol LabMembers Eladio Barrio Barrio Lab Members Carmela Belloch José Guillamón Guillamón Lab Members Sergi Puig Sergi Lab Members Diego Libkind (IPATEC) Juan I. Eizaguirre Jose Paulo Sampaio (U. Nova de Lisboa) Paula Gonçalves (U. Nova de Lisboa) Christian Landry (U. Laval) Justin Fay (Washington U.) Katie Hyma Fengyan Bai (Chinese Ac. of Sc.) Qi Ming Wang Ursula Bond (Trinity College) Chris T. Hittinger’s lab Quinn Langdon Jacek Kominek Christina Kuang Hittinger Lab Members Audrey Gasch Maria Sardi UW & GLBRC Collaboration SBYBI