High light intensity plays a major role in emergence of population level variation in Arabidopsis thaliana along an altitudinal gradient.

ABSTRACT: Environmental conditions play an important role in the emergence of genetic variations in natural populations. We identified genome-wide patterns of nucleotide variations in the coding regions of natural Arabidopsis thaliana populations. These populations originated from 700 m to 3400 m a.m.s.l. in the Western Himalaya. Using a pooled RNA-Seq approach, we identified the local and global level population-specific SNPs. The biological functions of the SNP-containing genes were primarily related to the high light intensity prevalent at high-altitude regions. The novel SNPs identified in these genes might have arisen de novo in these populations. In another approach, the FSTs of SNP-containing genes were correlated with the corresponding climatic factors. 'Radiation in the growing season' was

SUBMITTER: Tyagi A 

PROVIDER: S-EPMC4876511 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature