Recombination and base composition: the case of the highly self-fertilizing plant Arabidopsis thaliana.

ABSTRACT:

Background

Rates of recombination can vary among genomic regions in eukaryotes, and this is believed to have major effects on their genome organization in terms of base composition, DNA repeat density, intron size, evolutionary rates and gene order. In highly self-fertilizing species such as Arabidopsis thaliana, however, heterozygosity is expected to be strongly reduced and recombination will be much less effective, so that its influence on genome organization should be greatly reduced.

Results

Here we investigated theoretically the joint effects of recombination and self-fertilization on base composition, and tested the predictions with genomic data from the complete A. thaliana genome. We show that, in this species, both codon-usage bias and GC content do not correlate wi

SUBMITTER: Marais G 

PROVIDER: S-EPMC463295 | biostudies-literature | 2004

REPOSITORIES: biostudies-literature