Inheritance of the virgata pattern of partly colored seed coats in ‘Early Giant’ common bean

Abstract

The inheritance of the virgata pattern of partly colored seed coats found in common bean (Phaseolus vulgaris L.) 'Early Giant' (EG) was studied by a series of test crosses with line 5-593 and genetic stocks developed by backcrossing selected genes into the recurrent parent 5-593, a Florida dry bean breeding line with a self-colored, black seed coat with genotype T Z Bip P [C r] J G B V Rk. Analysis of the F 2 from the cross EG × 5-593 led to the hypothesis that the virgata pattern of EG has genotype t z bip vgt , where vgt stands for virgata. The test cross EG × t z virgarcus BC 3 5-593 confirmed the hypothesis that EG carries t z from data recorded in F 1 , F 2 , and 27 F 3 progenies from randomly selected F 2 plants. The F 3 segregation was also consistent with the hypothesis that a single recessive gene converts virgarcus into virgata. The test cross EG × t z bip bipunctata BC 3 5-593 failed to show genetic complementation in F 1 progeny, and the F 2 segregated 3:1 for the parental phenotypes virgata and bipunctata, respectively. Including previously published data, all possible crosses were made among bipunctata, virgata, and virgarcus parents, supporting a multiple allelic series at Bip. We propose the gene symbol bip vgt for the new allele at Bip, where the allelic series has the order of gene dominance Bip > bip vgt > bip. Based on test crosses, the complete seed-coat color and pattern genotype of EG is tz bip vgt P [C r] J G B v lae rk d .

Inheritance of Several Traits in Mungbean ( Vigna radiata )

“…mungo)的研究表明, 种皮光泽由单基因控制, 且光 对毛为显性 [25][26] 。 Lambrides 等 [27] 单单基因的遗传特点 [15][16] , 然而也有研究者认为绿 种皮和黄种皮由 2 对独立的基因控制, 并进一步推 测一对基因控制可溶性色素, 另一对基因决定叶绿 体的数目 [17][18][19] 。在对其他种皮色的遗传研究中, 也 存在单基因 [14] 、3 对基因 [21] , 甚至是 5 对基因 [20] 等 的判断。本研究中, 不同组合 )等花脸豆或斑点豆的斑驳种皮 [30][31][32] , 比 如黑色斑驳、黄色斑驳等 [20][21] 的遗传相一致, 比如 Reheenen [16] 和 Bose [17] 均认为种 皮光泽由单基因控制, 毛种皮为显性; 也有人认为 种皮光泽由 2 对基因控制 [15,18] , 然而在研究黑吉豆…”