Analysis of SSR dynamics in chloroplast genomes of Brassicaceae family.

ABSTRACT: Simple sequence repeats (SSRs) are present abundantly in most eukaryotic genomes. They affect several cellular processes like chromatin organization, regulation of gene activity, DNA repair, DNA recombination, etc. Though considerable data exists on using nuclear SSRs to infer phylogenetic relationships, the potential of chloroplast microsatellites (cpSSR), in this regard, remains largely unexplored. In the present study we probe various nucleotide repeat motifs (NRMs) / types of SSRs present in chloroplast genomes (cpDNA) of 12 species belonging to Brassicaceae family. NRMs show a non-random distribution in coding and non-coding compartments of cpDNA. As expected, trinucleotide repeats are more common in coding regions while other repeat motifs are prominent in non-coding DNA. Total numbe

SUBMITTER: Gandhi SG 

PROVIDER: S-EPMC3039999 | biostudies-literature | 2010 Jun

REPOSITORIES: biostudies-literature