Inheritance of abaxial leaf pubescence in beans
1990
Zaiter, H.Z. | Coyne, D.P. | Steadman, J.R. | Beaver, J.S.
Genetic variation for abaxial leaf pubescence was detected among dry bean (Phaseolus vulgaris L.) cultivars/lines. Inheritance of pubescence (long, straight hairs) was studied in the dry bean crosses of pubescent 'Pompadour Checa-50' (Dominican Republic) X eight glabrous cultivars/lines. Segregation for pubescence vs. glabrousness indicated that pubescence was determined by a single major gene or by duplicate recessive epistatic genes, depending on the cross involved. Trichome density (number trichomes per mm2) was a quantitative traits. Thus, pubescence was a discrete trait, but trichome density ranged from low to high.
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