Color is one of the most important traits of Flammulina velutipes, and it is controlled by a pair of alleles. In our studies, the strain FL19(yellow),8801(white), their monokaryotics and their offspring (F1, F2 generations),as well as the F1 generations' monokaryotics were used. A reaction system which accommodated RAPD reaction was established by optimizing DNA extracting and RAPD conditions. Through the combination of RAPD and BSA, a molecular marker S3751800 linked tightly to the white gene was found, an...