Fungal sex genes - searching for the ancestors

被引：35

作者：

Casselton, Lorna A. ^{[1
]}

机构：

[1] Univ Oxford, Oxford OX1 3RB, England

来源：

BIOESSAYS | 2008年 / 30卷 / 08期

关键词：

D O I：

10.1002/bies.20782

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The sex-determining genes of fungi reside at one or two specialised regions of the chromosome known as the mating type (MAT) loci. The genes are sufficient to determine haploid cell identity, enable compatible mating partners to attract each other, and prepare cells for sexual reproduction after fertilisation. How conserved are these genes in different fungal groups? New work((1)) seeks an answer to this question by identifying the sex-determining regions of an early diverged fungus. These regions bear remarkable similarity to those described in other fungi, but the sex proteins they encode belong to only a single class of transcription factor, the high mobility group (HMG), indicating that these are likely to be ancestral to other proteins recruited for fungal sex.

引用

页码：711 / 714

页数：4

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