Molecular mapping of the potato virus Y resistance gene Ry(sto) in potato

被引：118

作者：

Brigneti, G ^{[1
]}

GarciaMas, J ^{[1
]}

Baulcombe, DC ^{[1
]}

机构：

[1] JOHN INNES CTR PLANT SCI RES,SAINSBURY LAB,NORWICH NR4 7UH,NORFOLK,ENGLAND

来源：

THEORETICAL AND APPLIED GENETICS | 1997年 / 94卷 / 02期

关键词：

Potato virus Y; Ry(sto) extreme resistance; Solanum tuberosum; high-resolution map; AFLP;

D O I：

10.1007/s001220050400

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Ry(sto) is a dominant gene which confers resistance to potato virus Y (PVY) in potato. We have used bulked segregant analysis of an F-1 tetraploid potato population to identify three AFLP markers linked to and on either side of Ry(sto). The tomato homologue of one of these AFLP markers was assigned to linkage group XI by analysis of an F-2 mapping population of tomato, suggesting that Ry(sto) is also on chromosome XI of the potato genome. This map position was confirmed by the demonstration that Ry(sto) was linked to markers which had been previously mapped to chromosome XI of the potato genome. Four additional AFLP markers were identified that were closely linked to Ry(sto) in a population of 360 segregating progeny of a potato cross between a resistant (Ry(sto)) and a susceptible parent. Two of these markers were on either side of Ry(sto), separated by only a single recombination event. The other two markers co-segregated with Ry(sto).

引用

页码：198 / 203

页数：6

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