Gene duplication, population genomics, and species-level differentiation within a tropical mountain shrub.

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Serval ID
serval:BIB_52D8AF2F52E4
Type
Article: article from journal or magazin.
Collection
Publications
Title
Gene duplication, population genomics, and species-level differentiation within a tropical mountain shrub.
Journal
Genome Biology and Evolution
Author(s)
Mastretta-Yanes A., Zamudio S., Jorgensen T.H., Arrigo N., Alvarez N., Piñero D., Emerson B.C.
ISSN
1759-6653 (Electronic)
ISSN-L
1759-6653
Publication state
Published
Issued date
2014
Peer-reviewed
Oui
Volume
6
Number
10
Pages
2611-2624
Language
english
Abstract
Gene duplication leads to paralogy, which complicates the de novo assembly of genotyping-by-sequencing (GBS) data. The issue of paralogous genes is exacerbated in plants, because they are particularly prone to gene duplication events. Paralogs are normally filtered from GBS data before undertaking population genomics or phylogenetic analyses. However, gene duplication plays an important role in the functional diversification of genes and it can also lead to the formation of postzygotic barriers. Using populations and closely related species of a tropical mountain shrub, we examine 1) the genomic differentiation produced by putative orthologs, and 2) the distribution of recent gene duplication among lineages and geography. We find high differentiation among populations from isolated mountain peaks and species-level differentiation within what is morphologically described as a single species. The inferred distribution of paralogs among populations is congruent with taxonomy and shows that GBS could be used to examine recent gene duplication as a source of genomic differentiation of nonmodel species.
Keywords
Berberis, GBS, RAD-seq, Transmexican Volcanic Belt, de novo assembly, paralogy
Pubmed
Web of science
Open Access
Yes
Create date
22/09/2014 10:54
Last modification date
20/08/2019 15:08
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