Origin and differentiation of a special fragment from Capra hircus agouti gene

Abstract

A 136 bp fragment previously considered to only exist in Capra hircus agouti gene was analyzed. The results indicated that it existed in the agouti gene of C. hircus and Ovis aries and in other genes of O. aries and Bos taurus with forward and reverse sequences. The reverse sequences from O. aries had higher genetic diversity than forward ones. The differentiation between B. taurus and C. hircus was more obvious than that between B. taurus and O. aries. AC150540 (BACR5) from B. taurus and EE751186 (OEEF2) from O. aries could be considered as the farmost ancestral sequences.

Key words: Special fragment, 136 bp, Agouti gene, origin, differentiation.