Evolution of reproductive systems in the genus Silene
Evolution of reproductive systems in the genus Silene
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DOI：
10.1098/rspb.1996.0062
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发表时间：
1996-04-22
影响因子：
4.7
通讯作者：
Gouyon, PH
中科院分区：
文献类型：
--
作者：
Desfeux, C;Maurice, S;Gouyon, PH
蝇子草属包含两性花、雌雄异株和雌雄异株的物种，雌雄异株在该属的三个部分中有代表。为了定位生殖系统变化的事件，我们比较了22种蝇子草的ITS序列，从整个属中选择，和4个假定的外群物种。Gynodioplasty是蝇子草属内最常见的生殖系统，在Saponaria和Dianthus等密切相关的属中，被认为是该属的祖先。Dioclonal至少进化了两次：一次是在包含S的部分。latifolia，在含S. otites和S.无茎种苔藓植物。向两性畸形的进化，与自交的进化有关，也至少发生过两次，在S。gallica和S.圆锥形。
The genus Silene contains both hermaphrodite, gynodioecious and dioecious species, dioecy being represented in three sections of the genus. To locate the events of change of reproductive systems, we compared ITS sequences of 22 species of Silene chosen throughout the whole genus, and four putative outgroup species. Gynodioecy, which is the most common reproductive system within the genus Silene and in closely related genera such as Saponaria and Dianthus, is proposed to be ancestral in the genus. Dioecy has evolved at least twice: once in the section containing S. latifolia, and once in the clade containing S. otites and S. acaulis ssp. bryoides. Evolution towards hermaphroditism, associated with evolution of selfing, has also occurred at least twice, in S. gallica and S. conica.