Integrating differential expression under drought with gene family expansion unique to drought-tolerant species prioritizes candidate genes for drought adaptation in Brassicaceae species.

ABSTRACT:

Background

In order to prioritize candidate genes for drought adaptation, we analyze genomic data of the more drought-resistant Brassicaceae species Eutrema salsugineum and Arabidopsis lyrata compared to more drought-sensitive species Arabidopsis thaliana and Brassica napus. We combine gene family expansion, which is an important driver of evolution in plants, unique to the drought-resistant species with differential expression under drought (DE).

Results

We show that combining trait-specific gene family expansion with differential expression identifies a concise set of candidate genes. To demonstrate that these are relevant for drought adaptation in tolerant species, we show enrichment of DE conserved between both tolerant species, DE unique to the tolerant species, and up-

SUBMITTER: Uebermuth-Feldhaus C 

PROVIDER: S-EPMC12180157 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature