匐枝根霉组分类学的多相研究方法。

Polyphasic approach to the taxonomy of the Rhizopus stolonifer group.

作者信息

Liou Guey-Yuh, Chen Shyue-Ru, Wei Yu-Hui, Lee Fwu-Ling, Fu Hui-Mei, Yuan Gwo-Fang, Stalpers Joost A

机构信息

Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, Taiwan.

出版信息

Mycol Res. 2007 Feb;111(Pt 2):196-203. doi: 10.1016/j.mycres.2006.10.003.

DOI:10.1016/j.mycres.2006.10.003

PMID:17324757

Abstract

Phylogenetic analysis of Rhizopus strains based on the D1/D2 region of LSU rDNA sequences yielded a phylogram with four well-supported clades. The R. microsporus clade concurs with classification obtained by traditional methods. The R. oryzae group was found to include species of the genus Amylomyces. The traditional R. stolonifer group was divided into two well-supported clades in the phylogram, with one clade comprising R. stolonifer var. stolonifer, R. sexualis var. sexualis, and R. sexualis var. americanus and the other clade comprising taxa with recurved sporangiophores; R. reflexus, R. stolonifer var. lyococcus, and R. circinans, identifying recurved sporangiophores as an important taxonomic character. The molecular data supported the recognition of this clade at the species level: R. lyococcus (basionym: Sporotrichum lyococcum).

摘要

基于 LSU rDNA 序列 D1/D2 区域对根霉菌株进行系统发育分析，得到了一个具有四个得到充分支持的分支的系统发育树。微小根霉分支与传统方法获得的分类结果一致。发现米根霉组包括淀粉霉属的物种。在系统发育树中，传统的匍枝根霉组被分为两个得到充分支持的分支，一个分支包括匍枝根霉匍枝变种、有性匍枝根霉有性变种和有性匍枝根霉美洲变种，另一个分支包括孢囊梗弯曲的类群；反曲根霉、匍枝根霉溶球菌变种和卷枝根霉，确定弯曲的孢囊梗是一个重要的分类特征。分子数据支持在物种水平上对这个分支的认可：溶球菌根霉（基原异名：溶球菌丝孢菌）。