Phylogeny of the Glomerales and diversisporales (Fungi: Glomeromycota) from actin and elongation factor 1-alpha sequences

被引：52

作者：

Helgason, T ^{[1
]}

Watson, IJ ^{[1
]}

Young, JPW ^{[1
]}

机构：

[1] Univ York, Dept Biol, York YO10 5YW, N Yorkshire, England

来源：

FEMS MICROBIOLOGY LETTERS | 2003年 / 229卷 / 01期

基金：

英国生物技术与生命科学研究理事会;

关键词：

small subunit ribosomal RNA; actin; elongation factor 1-alpha; phylogeny; arbuscular mycorrhizal fungus; Glomeromycota;

D O I：

10.1016/S0378-1097(03)00802-4

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The arbuscular mycorrhizal (AM) fungi have been elevated to the phylum Glomeromycota based on a ribosomal gene phylogeny. In order to test this phylogeny, we amplified and sequenced small subunit ribosomal RNA (SSUrRNA), actin and elongation factor 1 (EF1)-alpha gene fragments from single spores of Acaulospora laevis, Glomus caledonium, Gigaspora margarita, and Scutellospora dipurpurescens. Sequence variation within and among spores of an isolate was low except for SSUrRNA in S. dipurpurescens, and the actin amino acid sequence was more conserved than that of EF1-alpha. The AM fungal sequences were more similar to one another than to any other fungal group. Joint phylogenetic analysis of the actin and EF1-alpha sequences suggested that the sister group to the AM fungi was a Zygomycete order, the Mortierellales. (C) 2003 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.

引用

页码：127 / 132

页数：6

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