RESISTANCE TO POWDERY MILDEW (OIDIUM LYCOPERSICON) IN LYCOPERSICON-HIRSUTUM IS CONTROLLED BY AN INCOMPLETELY DOMINANT GENE OL-1 ON CHROMOSOME-6

被引：46

作者：

VANDERBEEK, JG ^{[1
]}

PET, G ^{[1
]}

LINDHOUT, P ^{[1
]}

机构：

[1] CTR PLANT BREEDING & REPROD RES,DEPT VEGETABLE & FRUIT CROPS,6700 AA WAGENINGEN,NETHERLANDS

来源：

THEORETICAL AND APPLIED GENETICS | 1994年 / 89卷 / 04期

关键词：

LYCOPERSICON HIRSUTUM; RESISTANCE GENE MAPPING; OIDIUM LYCOPERSICON; GENE CLUSTERING; BULKED SEGREGANT ANALYSIS; POWDERY MILDEW; TOMATO; RAPD; OL-1;

D O I：

10.1007/BF00225382

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The inheritance of resistance to powdery mildew (Oidium lycopersicum) in Lycopersicon hirsutum was investigated by disease tests in segregating populations obtained by hybridising tomato (L. esculentum) cv Moneymaker with the wild relative L. hirsutum G1.1560. One incompletely-dominant gene Ol-1 was found to largely control resistance to the disease. To map Ol-1, DNA pools from seven resistant and ten susceptible F-2 plants were analyzed for random amplified polymorphic DNA (RAPD). With 32 primers tested, one RAPD, primed with the sequence 5'-GACGTGGTCA-3', was observed between the susceptible and the resistant bulks, which cosegregated with resistance in the F-2 population of L. esculentum x L. hirsutum G1.1560. This RAPD was mapped on chromosome 6 by using an F-2 (L. esculentum x L. pennellii) already mapped for 49 RFLPs. RFLP analysis of the F-2 from L. esculentum cv Moneymaker x L. hirsutum G1.1560 demonstrated that Ol-1 maps near the Aps-1 region on chromosome 6, in the vicinity of the resistance genes to Meloidogyne spp. (Mi) and to Cladosporium fulvum (Cf-2/Cf-5).

引用

页码：467 / 473

页数：7

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