Independent Origin of Sex Chromosomes in Two Species of the Genus Silene
Independent Origin of Sex Chromosomes in Two Species of the Genus Silene
复制标题
两种硅烯属性染色体的独立起源
DOI：
10.1534/genetics.107.085670
复制
发表时间：
2008
期刊：
影响因子：
3.3
通讯作者：
B. Janoušek
中科院分区：
文献类型：
--
作者：
M. Mráčková;Michael Nicolas;R. Hobza;I. Negrutiu;F. Monéger;A. Widmer;B. Vyskot;B. Janoušek
本文介绍了一种新的模式种——colpophylla，它可以促进性染色体进化和性别决定系统的研究。本种与建立良好的雌雄异株植物模式沉默草有亲缘关系。本研究结果表明，与阔叶树相似，colpophyla是一种雄性异配子物种，但其性染色体由不同于阔叶树的一对常染色体进化而来。我们的系统发育研究和同源基因定位结果表明，秋叶的性别决定系统独立于秋叶的性别决定系统进化。我们认为，这种模式物种对将使研究两种独立的性染色体进化模式成为可能。
Here we introduce a new model species, Silene colpophylla, that could facilitate research of sex chromosome evolution and sex-determining systems. This species is related to the well-established dioecious plant model Silene latifolia. Our results show that S. colpophylla is, similarly to S. latifolia, a male heterogametic species, but its sex chromosomes have evolved from a different pair of autosomes than in S. latifolia. The results of our phylogenetic study and mapping of homologs of S. latifolia X-linked genes indicate that the sex determination system in S. colpophylla evolved independently from that in S. latifolia. We assert that this model species pair will make it possible to study two independent patterns of sex chromosome evolution in related species.
影响因子：
7.2
作者：
Neff, MM;Neff, JD;Pepper, AE
通讯作者：
Pepper, AE