Hatena arenicola 中内共生的 Nephroselmis（Nephroselmidophyceae）的分子多样性。
Molecular diversity of endosymbiotic Nephroselmis (Nephroselmidophyceae) in Hatena arenicola (Katablepharidophycota).
机构信息
National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan,
出版信息
J Plant Res. 2014 Mar;127(2):241-7. doi: 10.1007/s10265-013-0591-1. Epub 2013 Aug 25.
Hatena arenicola (Katablepharidophycota) is a single-celled eukaryote that temporarily possesses a chlorophyte alga of the genus Nephroselmis as an intracellular symbiont. In the present study, we investigated the molecular diversity of the endosymbiont Nephroselmis in a natural population of the host H. arenicola. We sequenced the host's 18S rRNA gene and the endosymbiont's plastid-encoded 16S rRNA gene. The results indicated that almost identical strains of the host harbored at least three distinct strains of the algal endosymbiont affiliated to the clade Nephroselmis rotunda. This finding supports our previous hypothesis that H. arenicola and its symbiotic alga are in an early stage of secondary endosymbiosis.
Hatena arenicola（Katablepharidophycota）是一种单细胞真核生物，它暂时拥有一种绿藻门的 Nephroselmis 属藻类作为细胞内共生体。在本研究中，我们调查了宿主 H. arenicola 自然种群中内共生体 Nephroselmis 的分子多样性。我们对宿主的 18S rRNA 基因和内共生体的质体编码的 16S rRNA 基因进行了测序。结果表明，几乎相同的宿主株系至少携带了三种不同的藻类内共生体菌株，这些菌株与 Nephroselmis rotunda 分支相关。这一发现支持了我们之前的假设，即 H. arenicola 和其共生藻类处于二次内共生的早期阶段。
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