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Genetic Analysis on Single Fruit Seed Numbers and Seed Coat Color of Bitter Melon |
TAN Shu,CHENG Jiao-wen,CUI Jun-jie,LI Wei-peng,HU Kai-lin * |
(College of Horticulture, South China Agricultural University, Guangzhou 510642, Guangdong, China) |
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Abstract Taking bitter melon inbred line‘ 29’ and‘ Huizhoudading’ as parent,this study
developed 6 generations(P1,P2,F1,B1,B2,F2)from the cross,and analyzed the inheritance of
single fruit seed number and seed coat color,respectively. The results showed that the single fruit seed
numbers of bitter melon was controlled by 2 pairs of equi-dominant major genes plus additive-dominant
polygenes(E-6 model).The additive effects and dominant effects of the two major genes were equal.
The dominant effect of polygenes is positive and F1 expresses over-parent heterosis.Seed coat color
of bitter melon was controlled by a pair of dominant genes,black is the completely dominant traits to
brown-yellow.
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Received: 24 January 2013
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