Genomic data from pooled root and shoot tissue of Arabidopsis thaliana, Arabidopsis halleri and Arabidopsis lyrata

Gene copy number variation (CNV) is a form of genetic polymorphism that contributes significantly to genome size and function but remains poorly characterized due to technological limitations. Inter-specific comparisons of CNVs in recently diverged plant species are crucial to uncover selection patterns underlying adaptation of a species to stressful environments. Especially given that gene amplifications have long been implicated in emergence of species-specific traits, we conducted a genome-wide survey to identify species-specific gene copy number expansions and deletions in the model extremophile species - Arabidopsis halleri that has diverged in evolutionarily recent time from Arabidopsis thaliana.

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Suryawanshi V, Talke IN, Weber M, Eils R, Brors B, Clemens S, Krämer U