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Abstract Detail



The evolutionary importance of polyploidy

Barker, Michael Shane [1].

Exploring the Divergent Fates of Polyploid Species.

Polyploidy, or speciation by whole genome duplication, is common in many lineages of eukaryotes. Genomic analyses have uncovered evidence of ancient polyploidy in many lineages, including plants, fungi, and animals. Although paleopolyploidy is often associated with significant increases in diversification rates, many analyses suggest that most recently formed polyploid species do not persist. Here we integrate large scale-surveys of paleopolyploidy across the tree of life with data on the frequency of polyploid speciation to explore the divergent fates of polyploid species. We examine a set of unique characteristics associated with some of the most successful ancient genome duplications. Finally, we discuss how polyploid population genetics may explain, in part, the divergent fates of polyploid species.


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1 - University Of Arizona, Department Of Ecology & Evolutionary Biology, P.O. Box 210088, Tucson, AZ, 85721, USA

Keywords:
Polyploidy
genomics
Evolution.

Presentation Type: Symposium Presentation
Session: SY19
Location: Salon 4/The Shaw Conference Centre
Date: Wednesday, July 29th, 2015
Time: 4:15 PM
Number: SY19007
Abstract ID:1271
Candidate for Awards:None


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