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Identification of Coupling and Repulsion Phase DNA Marker Associated With an Allele of a Gene Conferring Host Plant Resistance to Pigeonpea sterility mosaic virus (PPSMV) in Pigeonpea (Cajanus cajan L. Millsp.)
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  • Identification of Coupling and Repulsion Phase DNA Marker Associated With an Allele of a Gene Conferring Host Plant Resistance to Pigeonpea sterility mosaic virus (PPSMV) in Pigeonpea (Cajanus cajan L. Millsp.)
저자명
Abhijit Daspute, B. Fakrudin*
간행물명
The Plant Pathology Journal KCI
권/호정보
2015년|31권 1호(통권133호)|pp.33-40 (8 pages)
발행정보
한국식물병리학회|한국
파일정보
정기간행물|ENG|
PDF텍스트(0.93MB)
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영문초록

Pigeonpea Sterility Mosaic Disease (PSMD) is an important foliar disease caused by Pigeonpea sterility mosaic virus (PPSMV) which is transmitted by eriophyid mites (Aceria cajani Channabasavanna). In present study, a F;sub>2;/sub> mapping population comprising 325 individuals was developed by crossing PSMD susceptible genotype (Gullyal white) and PSMD resistant genotype (BSMR 736). We identified a set of 32 out of 300 short decamer random DNA markers that showed polymorphism between Gullyal white and BSMR 736 parents. Among them, eleven DNA markers showed polymorphism including coupling and repulsion phase type of polymorphism across the parents. Bulked Segregant Analysis (BSA), revealed that the DNA marker, IABTPPN7, produced a single coupling phase marker (IABTPPN7;sub>414;/sub>) and a repulsion phase marker (IABTPPN7;sub>983;/sub>) co-segregating with PSMD reaction. Screening of 325 F;sub>2;/sub> population using IABTPPN7 revealed that the repulsion phase marker, IABTPPN7;sub>983;/sub>, was co-segregating with the PSMD responsive SV1 at a distance of 23.9 cM for Bidar PPSMV isolate. On the other hand, the coupling phase marker IABTPPN7;sub>414;/sub> did not show any linkage with PSMD resistance. Additionally, single marker analysis both IABTPPN7;sub>983;/sub> (P<0.0001) and IABTPPN 7;sub>414;/sub> (P<0.0001) recorded a significant association with the PSMD resistance and explained a phenotypic variance of 31 and 36% respectively in F;sub>2;/sub> population. The repulsion phase marker, IABTPPN7983, could be of use in Marker-Assisted Selection (MAS) in the PPSMV resistance breeding programmes of pigeonpea.

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