High Resolution Genetic and Physical Mapping of Molecular Markers Linked to the Phytophthora Resistance Gene Rps1-k in Soybean | Zendy

Takao Kasuga | Zendy; S. S. Salimath | Zendy; Jinrui Shi | Zendy; Mark Gijzen | Zendy; R. I. Buzzell | Zendy; Madan K. Bhattacharyya | Zendy

Open Access

High Resolution Genetic and Physical Mapping of Molecular Markers Linked to the Phytophthora Resistance Gene Rps1-k in Soybean

Author(s) -

Takao Kasuga,

S. S. Salimath,

Jinrui Shi,

Mark Gijzen,

R. I. Buzzell,

Madan K. Bhattacharyya

Publication year - 1997

Publication title -

molecular plant-microbe interactions

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.565

H-Index - 153

eISSN - 1943-7706

pISSN - 0894-0282

DOI - 10.1094/mpmi.1997.10.9.1035

Subject(s) - amplified fragment length polymorphism , rapd , biology , genetics , restriction fragment length polymorphism , locus (genetics) , genetic marker , centimorgan , phytophthora sojae , gene mapping , genetic linkage , molecular marker , gene , microbiology and biotechnology , genotype , genetic diversity , population , chromosome , demography , sociology

The resistance of soybean to Phytophthora root and stem rot caused by Phytophthora sojae is conferred by a series of single-dominant Rps genes. We have applied random amplified polymorphic DNA (RAPD) and amplified fragment length polymorphism (AFLP) analyses to isolate molecular markers linked to Rps1-k. Five RAPD markers were identified and mapped closely to one side of Rps1-k. AFLP analysis was carried out with near isogenic lines and bulks obtained from F3 families. Twenty-seven markers were identified. Nineteen of these were specific to the resistant parent. Five AFLP markers were amplified from the susceptible parent. One of these markers, TC1, mapped at 0.07 centimorgans (cM) from the Rps1 locus. Three AFLP markers were co-dominant, and one of these, CG1, mapped at a distance of 0.06 cM from the Rps1 locus on the opposite side of the rest of the markers. Two RAPD, 17 AFLP, and 14 restriction fragment length polymorphism (RFLP) markers originating from duplicated sequences were mapped within a 3-cM m...

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