The polyphyletic nature of Paecilomyces sensu lato based on 18S-generated rDNA phylogeny
The polyphyletic nature of Paecilomyces sensu lato based on 18S-generated rDNA phylogeny
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DOI：
10.2307/3762111
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发表时间：
2004-07-01
期刊：
影响因子：
2.8
通讯作者：
Samson, RA
中科院分区：
文献类型：
--
作者：
Luangsa-Ard, JJ;Hywel-Jones, NL;Samson, RA
用核编码的小亚基核糖体DNA检测了拟青霉的系统发育关系。系统发育分析表明拟青霉属跨索伞菌科和欧伞菌科两个亚纲的多系。模式种、变拟青霉和其亲热亲缘种属于毛霉菌目，而与粉拟青霉亲缘种有关的中温亲缘种则属于拟青霉目（棒状菌科和棒状菌科）。其中一种，拟青霉（Paecilomyces inflatus），与Sordariales有亲缘关系。在Eurotiales中，拟青霉属单系。在下胚芽门中，拟青霉的种类是多系的，尽管数据未能完全解决这些关系。
Nuclear-encoded small-subunit ribosomal DNA was used to examine phylogenetic relationships in Paecilomyces sensu lato. Phylogenetic analysis of the 18S nr DNA demonstrates that Paecilomyces is polyp phyletic across two subclasses, Sordariomycetidae and Eurotiomycetidae. The type species, Paecilomyces variotii, and thermophilic relatives belong in the order Eurotiales (Trichocomaceae), while mesophilic species related to Paecilomyces farinosus are in the order Hypocreales (Clavicipitaceae and Hypocreaceae). One species, Paecilomyces inflatus, had affinities for the order Sordariales. Within the Eurotiales, Paecilomyces is monophyletic. Within the Hypocreales, species of Paecilomyces are polyphyletic, although the data failed to fully resolve these relationships.