Weird Animal Genomes and the Evolution of Vertebrate Sex and Sex Chromosomes

被引：190

作者：

Craves, Jennifer A. Marshall ^{[1
]}

机构：

[1] Australian Natl Univ, Res Sch Biol Sci, Canberra, ACT 2601, Australia

来源：

ANNUAL REVIEW OF GENETICS | 2008年 / 42卷

基金：

澳大利亚研究理事会;

关键词：

comparative genomics; SRY; DMRT1; mammals; sex determination;

D O I：

10.1146/annurev.genet.42.110807.091714

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Humans, mice, and even kangaroos have an X female:XX male system of sex determination, in which the Y harbors a male-dominant sex-determining gene SRY. Birds have the opposite, ZZ males and ZW females, and may use a dosage-sensitive Z-borne gene. Other reptiles have genetic sex but no visible sex chromosomes, or determine sex by temperature of egg incubation. How can we make sense of so much variation? Flow do systems change in evolution? Studies of some unlikely animals-platypus and dragon lizards, frogs and fish-confirm that evolutionary transitions have occurred between TSD anti GSD systems, between XY and ZW systems, anti even between male and female heterogametic systems. Here I explore nonmodel systems that offer some new perspectives on some venerable questions of sex and sex chromosomes.

引用

页码：565 / 586

页数：22

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