Cryptic Sex in Symbiodinium ( Alveolata, Dinoflagellata) is Supported by an Inventory of Meiotic Genes
Cryptic Sex in Symbiodinium ( Alveolata, Dinoflagellata) is Supported by an Inventory of Meiotic Genes
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DOI：
10.1111/jeu.12110
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发表时间：
2014-05-01
影响因子：
2.2
通讯作者：
Dunthorn, Micah
中科院分区：
文献类型：
--
作者：
Chi, Jingyun;Parrow, Matthew W.;Dunthorn, Micah
共生甲藻包括甲藻的一个不同的分支，作为珊瑚和其他海洋生物的共生体在生态上具有重要意义。尽管数十年的研究，性别的细胞学证据（核配和减数分裂）尚未在共生藻中得到证实，尽管分子群体遗传模式支持有性重组的发生。在这里，我们提供了额外的支持性别在共生藻发现6减数分裂特异性和25减数分裂相关基因在三个已发表的基因组。隐性行为可能发生在共生藻罕见的自由生活状态，而在共生状态下则不活跃。
Symbiodinium encompasses a diverse clade of dinoflagellates that are ecologically important as symbionts of corals and other marine organisms. Despite decades of study, cytological evidence of sex (karyogamy and meiosis) has not been demonstrated in Symbiodinium, although molecular population genetic patterns support the occurrence of sexual recombination. Here, we provide additional support for sex in Symbiodinium by uncovering six meiosis-specific and 25 meiosis-related genes in three published genomes. Cryptic sex may be occurring in Symbiodinium's seldom-seen free-living state while being inactive in the symbiotic state.