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首页> 外文期刊>Phycological Research >Molecular characterization of Chlorella cultures of the National Institute for Environmental Studies culture collection with description of Micractinium inermum sp nov., Didymogenes sphaerica sp nov., and Didymogenes soliella sp nov (Chlorellaceae, Trebouxiophyceae)
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Molecular characterization of Chlorella cultures of the National Institute for Environmental Studies culture collection with description of Micractinium inermum sp nov., Didymogenes sphaerica sp nov., and Didymogenes soliella sp nov (Chlorellaceae, Trebouxiophyceae)

机译:美国国立环境研究所文化收藏物中小球藻培养物的分子特征,包括麦氏杆菌,小球藻和小孢子藻(绿藻科,水生藻科)的描述

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摘要

ChlorellaBeijerinck (Chlorellaceae, Trebouxiophyceae) strains from the collection of the National Institute for Environmental Studies (NIES) were characterized using gene sequence data. The misidentification of a number of strains was rectified. Chlorella vulgarisBeijerinck NIES-2173 was reclassified as C.sorokinianaShihira et Krauss. Chlorella sp. NIES-2171 was described as a new species in the genus MicractiniumFresinius, M.inermumHoshina et Fujiwara. Chlorella sorokinianaNIES-2167 and Chlorella sp. NIES-2330 were found to be phylogenetically related to DidymogenesSchmidle. We propose these two strains be transferred to the genus Didymogenes and given new names: D.sphaericaHoshina et Fujiwara and D.soliellaHoshina et Fujiwara. Taxonomic decisions were primarily based on small subunit-internal transcribed spacer ribosomal DNA phylogeny for genus assignment and ITS2 sequence-structure to determine species autonomy. Our findings suggest that this strategy is the most effective way to use the species concept among autosporic coccoids.
机译:使用基因序列数据对美国国立环境研究所(NIES)收集的小球藻(Chlorellaceae,Trebouxiophyceae)菌株进行了表征。纠正了许多菌株的错误识别。小球藻Beijerinck NIES-2173被重新分类为C.sorokinianaShihira et Krauss。小球藻NIES-2171被描述为MicractiniumFresinius属,M.inermumHoshina和Fujiwara属的一个新物种。 Sorokiniana小球藻NIES-2167和Chlorella sp。发现NIES-2330与DidymogenesSchmidle在系统发育上相关。我们建议将这两个菌株转移到双歧杆菌属并赋予新名称:D.sphaericaHoshina等藤原和D.soliellaHoshina等藤原。分类学决策主要基于小亚基内部转录间隔区核糖体DNA系统发育进行属分配和ITS2序列结构来确定物种自主性。我们的发现表明,这种策略是在自孢子球菌中使用物种概念的最有效方法。

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