Genetic Analysis of Japanese Persimmon Fruit Weight
Genetic Analysis of Japanese Persimmon Fruit Weight
复制标题
日本柿果重遗传分析
DOI：
10.21273/jashs.119.6.1298
复制
发表时间：
1994
影响因子：
1.9
通讯作者：
Y. Ukai
中科院分区：
文献类型：
--
作者：
M. Yamada;H. Yamane;Y. Ukai
采用多元回归分析方法，以近交系数(F)和中亲值(MP)为自变量，子代平均值为因变量，估算了日本柿(Diospyros kaki Thunb.)果实重量遗传值超过一定选择标准的后代个体占杂交后代总个体的比例。共用39个杂交组合的117株苗木。杂交后代的遗传差异仅可用F和MP来解释，前者的影响大于后者。大果后代的期望比例随着MP的降低而降低，随着F的增加而严重下降。根据3年来单株35个果实的亲本平均值，估计了MP=200g的杂交单株在0.125、0.125和0.25F值下，果重200g的后代个体所占比例分别为34%、21%和12%。
The expected proportion of individuals in progeny having genotypic values for fruit weight over a given selection criterion to the total individuals derived from a cross was estimated by multiple-regression analysis in which inbreeding coefficient (F) and midparental (MP) value were independent variables and progeny mean was the dependent variable in Japanese persimmon (Diospyros kaki Thunb.). A total of 117 seedlings from 39 crosses was used. Genetic differences of progenies among crosses could be explained solely by F and MP, the effect of the former being greater than the latter. The expected proportion of progenies with large fruit decreased as MP decreased and severely decreased as F increased. Based on the parental mean of 35 fruit on a single tree for 3 years, the proportion of individuals in progeny with fruit weight >200 g was estimated as 34%, 21%, and 12% for 0, 0.125, and 0.25 F values, respectively, in individual from a cross with MP = 200 g.