关键词: 甘蓝, 显性雄性不育性, 遗传效应

Abstract: Genetic effect of the dominant genic male sterile material DGMS79-399-3 in cabbage (Brassi
ca oleracea var. capitata L. ) was studied with two different genetic analysismodels. The principle of genetics
was studied with the method of GriffingⅡ, and the result showed that the variance of additive effect in the total
genetic variance was only 21189% , but the dominant variance was 78.11%. The value of the broad
heritability was 97.22% , but the value of narrow heritability was only 21.23%. The result of comparison of
combining ability, in the five male sterile parents, the highest general combining ability of P1 from 523-16 was
3.17, but the highest special combining ability from the combination of 606-7 ×102 was 10.42. The p rinciple
of geneticswas studied with joint analysis of six generations and the result indicated that the best fitted genetic
model affecting fertile characteristics of the dominant genetic male sterility in cabbage was one major additive
dominant gene p lus additive2dominant2ep istatic polygenes (D model) , the heritability of major gene was
80.03% - 94.12% , and the heritability of polygeneswas 0.14% - 10.94%. The major dominant gene had
an important effect, however, the additive effect ofmajor gene and the polygenes effect should be also valued.

Key words: Cabbage, The dominant genetic male sterility, Genetic effect