IDENTIFICATION OF RFLP MARKERS LINKED TO THE H1 GENE CONFERRING RESISTANCE TO THE POTATO CYST NEMATODE GLOBODERA-ROSTOCHIENSIS

被引：89

作者：

PINEDA, O ^{[1
]}

BONIERBALE, MW ^{[1
]}

PLAISTED, RL ^{[1
]}

BRODIE, BB ^{[1
]}

TANKSLEY, SD ^{[1
]}

机构：

[1] CORNELL UNIV,USDA ARS,DEPT PLANT PATHOL,ITHACA,NY 14853

来源：

GENOME | 1993年 / 36卷 / 01期

关键词：

SOLANUM-TUBEROSUM; POTATO; RESISTANCE GENES; GLOBODERA-ROSTOCHIENSIS; H1; RFLP; CYST NEMATODES;

D O I：

10.1139/g93-019

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The H1 gene from Solanum tuberosum ssp. andigena confers high levels of resistance to the potato cyst nematode Globodera rostochiensis and is used extensively in potato breeding. Using a dihaploid segregating population, a search was conducted for linkage between this gene and markers on the potato/tomato RFLP map. A total of 60 RFLP markers covering the entire genome were screened on bulk resistant and susceptible segregants. Linkage was indicated for eight markers on chromosome 5. Individual plant analysis placed the closest marker, CD78, at a maximum map distance of 2.7 cM from H1. A molecular marker for the H1 should be useful both as a correlative screening tool for incorporation of resistance into new cultivars and as starting point for map-based cloning of this important gene.

引用

页码：152 / 156

页数：5

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