COMPARATIVE TREE OF SEX DETERMINING REGION Y(SRY) AND SRY BOX GENES *
ZHOU Rong Jia GUO Yi Qing\ CHENG Han Hua MAO Yong\ YU Qi Xing (College of Life Sciences, Wuhan University, Wuhan 430072, China)
The Sex determining region Y(SRY) is a strong candidate for the mammalian testis determining factor (TDF). Based on the identical percentage of amino acids in conserved regions, the families of SRY and SRY box genes are subdivided fall into four subfamilies named SOX S1, SOX S2, SOX S3 and SOX S4. SRY/Sry in all mammals are grouped in subfamily SOX S1. The subfamily SOX S1 consists of SOX S1 1 and SOX S1 2. SRY/Sry in eutherian mammals into SOX S1 2.