Genotypic diversity in barley powdery mildew populations in northern France

被引：0

作者：

Caffier, V ^{[1
]}

Brändle, UE ^{[1
]}

Wolfe, MS ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Inst Plant Sci, Phytopathol Grp, CH-8092 Zurich, Switzerland

来源：

PLANT PATHOLOGY | 1999年 / 48卷 / 05期

关键词：

barley; Blumeria graminis; molecular markers; RAPD; SCAR; virulence;

D O I：

暂无

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Diversity in populations of Erysighe graminis (Blumeria graminis) f.sp. hordei was studied with virulence and molecular markers. Isolates were sampled in two locations in northern France from a winter barley cultivar (Plaisant) and a spring cultivar (Caruso). Only a few pathotypes (determined by virulence markers) were common. The rest of the population was diverse. Diversity within common pathotypes, estimated by five RAPD and two SCAR markers, was generally high, except for one pathotype, which was frequent on Plaisant. This pathotype carried only one virulence, Va22, out of the 11 virulences tested. It appeared as a clonal lineage, which had occurred previously, at least in 1992, in northern France, demonstrating survival of asexual lineages in populations that often reproduce sexually.

引用

页码：582 / 587

页数：6

共 28 条

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