About PAR: The distinct evolutionary dynamics of the pseudoautosomal region

被引：140

作者：

Otto, Sarah P. ^{[2
]}

Pannell, John R. ^{[3
]}

Peichel, Catherine L. ^{[4
]}

Ashman, Tia-Lynn ^{[5
]}

Charlesworth, Deborah ^{[6
]}

Chippindale, Adam K. ^{[7
]}

Delph, Lynda F. ^{[8
]}

Guerrero, Rafael F. ^{[9
]}

Scarpino, Samuel V. ^{[9
]}

McAllister, Bryant F. ^{[1
]}

机构：

[1] Univ Iowa, Dept Biol, Iowa City, IA 52242 USA

[2] Univ British Columbia, Dept Zool, Vancouver, BC V6T 1Z4, Canada

[3] Univ Oxford, Dept Plant Sci, Oxford OX1 3RB, England

[4] Fred Hutchinson Canc Res Ctr, Div Human Biol, Seattle, WA 98109 USA

[5] Univ Pittsburgh, Dept Biol Sci, Pittsburgh, PA 15260 USA

[6] Univ Edinburgh, Inst Evolutionary Biol, Sch Biol Sci, Ashworth Labs, Edinburgh EH9 3JT, Midlothian, Scotland

[7] Queens Univ, Dept Biol, Kingston, ON K7L 3N6, Canada

[8] Indiana Univ, Dept Biol, Bloomington, IN 47405 USA

[9] Univ Texas Austin, Sect Integrat Biol, Austin, TX 78712 USA

来源：

TRENDS IN GENETICS | 2011年 / 27卷 / 09期

基金：

英国生物技术与生命科学研究理事会; 美国国家科学基金会;

关键词：

SEX-CHROMOSOME EVOLUTION; QUANTITATIVE TRAIT LOCI; NEO-X CHROMOSOME; Y-CHROMOSOME; LINKAGE MAP; REDUCED RECOMBINATION; SELECTION; DIMORPHISM; STRATA; GENES;

D O I：

10.1016/j.tig.2011.05.001

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Sex chromosomes differ from other chromosomes in the striking divergence they often show in size, structure, and gene content. Not only do they possess genes controlling sex determination that are restricted to either the X or Y (or Z or W) chromosomes, but in many taxa they also include recombining regions. In these 'pseudoautosomal regions' (PARs), sequence homology is maintained by meiotic pairing and exchange in the heterogametic sex. PARs are unique genomic regions, exhibiting some features of autosomes, but they are also influenced by their partial sex linkage. Here we review the distribution and structure of PARs among animals and plants, the theoretical predictions concerning their evolutionary dynamics, the reasons for their persistence, and the diversity and content of genes that reside within them. It is now clear that the evolution of the PAR differs in important ways from that of genes in either the non-recombining regions of sex chromosomes or the autosomes.

引用

页码：358 / 367

页数：10

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