Excess non-synonymous substitutions suggest that positive selection episodes occurred during the evolution of DNA-binding domains in the Arabidopsis R2R3-MYB gene family.

Abstract excerpt

It has been suggested that evolutionary changes in regulatory genes may be the predominant molecular mechanism governing both physiological and morphological evolution. R2R3-AtMYB is one of the largest transcription factor gene families in Arabidopsis. Using inferred ancestral sequences we show that several lineages in the R2R3-AtMYB phylogeny experienced excess non-synonymous nucleotide substitution upon gene...

Topics

Share this publication in a Topic to start or enrich a Post.

• Share to Arabidopsis
• Share to Arabidopsis Proteins