33个三色堇品种遗传差异的初步分析

Preliminary Analysis on Genetic Difference of 33 Pansy Cultivars

对试验调查的33个三色堇品种的9个重要农艺性状,研究各品种间的遗传差异,并采用欧氏距离和UPGMA法,对33个品种进行了聚类。结果表明,33个三色堇品种间的平均遗传距离为3.611,08-H2与09-C13之间遗传距离最大,为9.404,08-C2与09-C3之间遗传距离最小,为0.244;33个品种可被聚为4类,其中08-H2单独为一类,08-H5和09-H5聚为一类,09-C1单独聚为一类,其余品种聚为一类。聚类结果与品种地理来源基本吻合。

9 important characters of 33 pansy cultivars were investigated in this article. Based on 8 quantity characters of 9 investigated characters, 33 pansy cultivars were clustered and the genetic differences among them were analyzed, adopting Euclidean genetic distance and the UPGMA method. The result indicated that： the average genetic distance among 33 pansy cultivars was 3. 611, the biggest distance was 9. 404 which between 08--H2 and 09-C13, and the smallest distance was 0. 244 which between 08-C2 and 09- C3 33 pansy cultivars were clustered into 4 groups, one group included 08-H5 and 09-C3, one group included only 09-C1, one group included only 08-H2, other 29 cultivars were clustered into another group. The clustering was accordant with the origins of the cultivars on the whole.