Genetic diversity of Fusarium oxysporum f. sp. spinaciae in Japan based on phylogenetic analyses of rDNA-IGS and MAT1 sequences

被引：13

作者：

Kawabe M. ^{[1
,4
]}

Katsube K. ^{[2
]}

Yoshida T. ^{[1
]}

Arie T. ^{[3
]}

Tsuchiya K. ^{[1
,5
]}

机构：

[1] Microbial Genetics and Physiology Unit, Department of Biological Safety Microbiology Group, National Institute for Agro-Environmental Sciences, Tsukuba, Ibaraki 305-8604

[2] Department of Management, Iwate Biotechnology Research Center, Kitakami, Iwate 024-0003

[3] Institute of Synbiotic Science and Technology, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Saiwaicho

[4] Applied Biology for Plant Protection Research Unit, RIKEN, Wako, Saitama 351-0198

[5] Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka 812-8581

来源：

Journal of General Plant Pathology | 2007年 / 73卷 / 5期

基金：

日本学术振兴会;

关键词：

Fusarium oxysporum; MAT; Phylogeny; rDNA-IGS; VCG;

D O I：

10.1007/s10327-007-0036-6

中图分类号：

学科分类号：

摘要：

Twenty-eight isolates of Fusarium oxysporum f. sp. spinaciae (FOS; the causal agent of spinach wilt) collected from Japan were assessed for mating type and subjected to phylogenetic analysis. Mating type analysis revealed all isolates to be MAT1-2, suggesting that there is no sexual recombination within the population. Phylogenetic analyses based on nucleotide sequences of the ribosomal DNA intergenic spacer (IGS) and the mating type locus (MAT1) suggested that FOS is polyphyletic. The cluster analysis based on IGS showed four phylogenetic groups (S1-S4) among the isolates. Two distinct lineages, S1 and S3, included FOS isolates both of the vegetative compatibility group (VCG) types, 0330 and 0331, demonstrating that VCG differentiation in FOS may not necessarily reflect the phylogenetic relationships based on IGS and MAT1-2-1. © 2007 The Phytopathological Society of Japan and Springer.

引用

页码：353 / 359

页数：6

共 38 条

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