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- Title
Rapid chromosome evolution in recently formed polyploids in Tragopogon (Asteraceae).
- Authors
Lim, K Yoong; Soltis, Douglas E; Soltis, Pamela S; Tate, Jennifer; Matyasek, Roman; Srubarova, Hana; Kovarik, Ales; Pires, J Chris; Xiong, Zhiyong; Leitch, Andrew R
- Abstract
Polyploidy, frequently termed "whole genome duplication", is a major force in the evolution of many eukaryotes. Indeed, most angiosperm species have undergone at least one round of polyploidy in their evolutionary history. Despite enormous progress in our understanding of many aspects of polyploidy, we essentially have no information about the role of chromosome divergence in the establishment of young polyploid populations. Here we investigate synthetic lines and natural populations of two recently and recurrently formed allotetraploids Tragopogon mirus and T. miscellus (formed within the past 80 years) to assess the role of aberrant meiosis in generating chromosomal/genomic diversity. That diversity is likely important in the formation, establishment and survival of polyploid populations and species.
- Publication
PloS one, 2008, Vol 3, Issue 10, pe3353
- ISSN
1932-6203
- Publication type
Journal Article
- DOI
10.1371/journal.pone.0003353