Sex, polyps, and medusae: Determination and maintenance of sex in cnidarians.
Sex, polyps, and medusae: Determination and maintenance of sex in cnidarians.
复制标题
性别、息肉和水母：刺胞动物性别的决定和维持。
DOI：
10.1002/mrd.22690
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发表时间：
2017
影响因子：
2.5
通讯作者：
Juliano,CelinaE
中科院分区：
文献类型：
--
作者：
Siebert,Stefan;Juliano,CelinaE
性别决定的机制在动物之间有很大的差异。在这里，我们调查什么是已知的刺胞，形成姐妹集团的分支Bilateria和显示了广泛的性策略和性可塑性。这种观察到的多样性使刺胞纲成为研究性别决定进化的非常合适的分类群，因为密切相关的物种可能有不同的机制，这使得可以进行比较研究。在这篇综述中，我们调查了关于性系统的广泛描述性数据（例如，雌雄同体）和各种刺胞动物分类群的性别可塑性。在刺胞动物中，水螅虫（例如，水螅、水螅和水螅属）在性别的机制决定和维持方面是最好理解的，这主要是由于间质干细胞的发现，间质干细胞产生生殖细胞。我们还提出了一个假说的各种性系统，观察在水螅的演变。最后，鉴于基因组测序和编辑的快速进展，讨论了几个令人兴奋的可能的未来方向，以增加我们对刺胞动物性别决定机制的理解。Reprod. Dev. 84：105-119，2017年。© 2016 Wiley Periodicals，Inc.
Mechanisms of sex determination vary greatly among animals. Here we survey what is known in Cnidaria, the clade that forms the sister group to Bilateria and shows a broad array of sexual strategies and sexual plasticity. This observed diversity makes Cnidaria a well‐suited taxon for the study of the evolution of sex determination, as closely related species can have different mechanisms, which allows for comparative studies. In this review, we survey the extensive descriptive data on sexual systems (e.g., gonochorism and hermaphroditism) and the plasticity of sex in various cnidarian taxa. Within Cnidaria, hydrozoans (e.g.,Hydra,Hydractinia, andClytia) are the best understood in regard to mechanistic determination and maintenance of sex, largely due to the discovery of the interstitial stem cells, which give rise to the germ cells. We also present a hypothesis for the evolution of the various sexual systems that are observed inHydra. Finally, given the rapid advances in genome sequencing and editing, several exciting possible future directions for increasing our understanding of sex determination mechanisms in cnidarians are discussed.Mol. Reprod. Dev. 84: 105–119, 2017. © 2016 Wiley Periodicals, Inc.