Genetic analysis of the morphology of silica bodies from motor cells in rice (Oryza sativa L.)
文献类型: 外文期刊
第一作者: Wang, CL
作者: Wang, CL;Udatsu, T;Fujiwara, H
作者机构:
关键词: Oryza sativa;silica body;genetic analysis;diallel analysis
期刊名称:BREEDING SCIENCE ( 影响因子:2.086; 五年影响因子:2.632 )
ISSN: 1344-7610
年卷期: 1998 年 48 卷 2 期
页码:
收录情况: SCI
摘要: Genetic analysis of the morphology of silica bodies from motor cells in rice (Oryza sativa L.) was conducted by examining an F-2 population and a set of 3 x 5 NC II dialIel crosses. Segregation for the four morphological characters-vertical length, horizontal length, lateral length and shape coefficient (bia)- of silica bodies in the Fz population showed a countinous and a wide distribution exceeding the ranges of the two parents (Fig. 2), suggesting that the morphological characters of silica bodies were quantitative and controlled by several genes. In the NC II diallel analysis, the heterogeneity of W'r+1/2Vr between arrays was not significant for all the morphological characters but b/a, and the heterogeneity of W'r-1/2Vr was not observed for all the characters tested (Table 4). The regression coefficients of W'r on Vr were nearly 0.5 but significantly different from zero (Table 5), indicating that the shape of the silica bodies was controlled by an additive-dominance genetic system. The heritabilities in a broad sense for the four characters were in the range of 0.43 similar to 0.73 and those in a narrow sense in the range of 0.29 similar to 0.54 (Table 6).
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