Ontology highlight
ABSTRACT:
SUBMITTER: Navarro-Quezada A
PROVIDER: S-EPMC117550 | biostudies-literature | 2002 Jan
REPOSITORIES: biostudies-literature
Navarro-Quezada Aura A Schoen Daniel J DJ
Proceedings of the National Academy of Sciences of the United States of America 20011218 1
Sequence evolution of the reverse transcriptase (RT) gene in retrotransposons belonging to the Ty1-copia class was studied in 11 plant species. Phylogenetic reconstruction of the evolutionary history of RT sequences indicated a strong pattern of purifying selection, manifested as high ratios of third to first plus second codon position substitutions, and low ratios of nonsynonymous substitutions per nonsynonymous site to synonymous substitutions per synonymous site, especially in internal portio ...[more]