Molecular analysis and virus transmission tests place Olpidium virulentus, a vector of Mirafiori lettuce big-vein virus and tobacco stunt virus, as a distinct species rather than a strain of Olpidium brassicae

被引：32

作者：

Sasaya T. ^{[1
,3
]}

Koganezawa H. ^{[2
]}

机构：

[1] National Agricultural Research Center for Western Region, Zentsuji

[2] Kunisada Plant Breeding Station, Kaneko Seeds, Gunma

[3] Policy Planning and Evaluation Division, Minister's Secretariat, MAFF, Tokyo

来源：

Journal of General Plant Pathology | 2006年 / 72卷 / 1期

关键词：

Olpidium brassicae; Olpidium virulentus; rDNA-ITS; Taxonomy;

D O I：

10.1007/s10327-005-0239-7

中图分类号：

学科分类号：

摘要：

The rDNA-ITS sequences of ten single-sporangium isolates of Olpidium virulentus (a noncrucifer strain of Olpidium brassicae), which transmits Mirafiori lettuce big-vein virus (MLBVV) and tobacco stunt virus (TStV), were compared with those of six single-sporangium isolates of O. brassicae. The sequence similarity within isolates of O. virulentus or O. brassicae was almost identical (98.5%-100.0%), but was low between the two species (79.7%-81.8%). In a phylogenetic analysis of the rDNA-ITS region, O. virulentus and O. brassicae fell into two distinct clusters, indicating that O. virulentus, a vector of MLBVV and TStV, is a distinct species rather than a strain of O. brassicae. © The Phytopathological Society of Japan and Springer-Verlag 2006.

引用

页码：20 / 25

页数：5

共 14 条

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