Selection of sequence-related amplified polymorphism molecular marker associated with salt tolerance of cotton
Twenty-six salt tolerant and sensitive materials, and a F2 population derived from the cross between a salt tolerant material and a salt sensitive material were analyzed by sequence-related amplified polymorphism ( SRAP ) marker and bulked segrgant analysis( BSA) method to screen markers associated with salt tolerance of cotton. Six pairs of 88 prim-er combinations were detected polymorphic in both parents, among which, one pair of primer amplified a 350-bp fragment in the tolerant individuals of F2 population, but no band in the susceptible individuals. The fragment were identified exclu-sively in 22 salt tolerant varieties. The results suggested that this marker might be closely linked to salt tolerance in cotton.