With joint analysis based on the parents, F1, F2 and backcrosses, the authors found that the resistance of the maize inbred line Huangzaosi to the maize dwarf mosaic virus strain B was conditioned by a major gene and polygene, and identified a new major gene. Bulked segregate and microsatellite analysis of a F2 progeny from the combination of Huangzaosi×Mo17 were used to identify the resistance gene, mdm1 (t), on the long arm of chromosome 6. This new resistance gene is tightly linked to and located between the microsatellite markers loci, phi077 and bnlg391. The linkage distances between phi077 mdm1(t) and mdm1(t) bnlg391 are 4.74 centiMorgan (cM) and 6.72 cM respectively.
一个新的抗玉米矮花叶病基因位点的微卫星标记
全 文 ：