Eyespot resistance gene Pch-1 in H-93 wheat lines. Evidence of linkage to markers of chromosome group 7 and resolution from the endopeptidase locus Ep-D1b

被引：21

作者：

Mena, M. ^{[1
]}

Doussinault, G. ^{[2
]}

Lopez-Brana, I. ^{[1
]}

Aguaded, S. ^{[1
]}

Garcia-Olmedo, E. ^{[1
]}

Delibes, A. ^{[1
]}

机构：

[1] UPM, ETS Ingenieros Agronomos, E-28040 Madrid, Spain

[2] INRA, Stn Ameliorat Plantes, F-35650 Le Rheu, France

来源：

THEORETICAL AND APPLIED GENETICS | 1992年 / 83卷 / 08期

关键词：

Wheat; Aegilops ventricosa; Pseudocercosporella herpotrichoides; Eyespot disease; Resistance gene;

D O I：

10.1007/BF00232970

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Gene Pch1, which confers resistance to eyespot disease (Pseudocercosporella herpotrichoides Fron), has been located on chromosome 7D in the H-93 wheat-Aegilops ventricosa transfer lines using isozyme markers and DNA probes corresponding to group 7 chromosomes. Previous experiments had failed to ascertain this location. The lack of segregation of the resistance trait in progeny from reciprocal crosses between lines H-93-70 and VPM1 indicates that their respective resistance factors are allelic. Line H-93-51 carries the endopeptidase allele Ep-D1b but is susceptible to eyespot, which indicates that resistance to eyespot is not a product of the Ep-D locus, as had been proposed in a previous hypothesis.

引用

页码：1044 / 1047

页数：4

共 17 条

[1] CHROMOSOMAL LOCATION OF ADENYLATE KINASE ISOZYMES IN TRITICEAE SPECIES [J].