The seedcoat color genotype of 'Prim' and the Manteca and Coscorron market classes of common bean
1999
Bassett, M.J.
Anecdotal evidence exists for nonflatulence among Chilean Manteca and Coscorron market classes of common bean (Phaseolus vulgaris L.), and there is an hypothesis that the seedcoat color may be associated with superior digestibility. The inheritance of seedcoat color in 'Prim', a Manteca market-class dry bean, was investigated using a protocol employing genetic interpretation of seedcoat colors in the F(1) from testcrosses of 'Prim' with a series of tester stocks. Most of the genetic tester stocks were constructed previously by backcrossing selected recessive alleles for seedcoat color into a recurrent parent (5-593) with seedcoat color genotype P [Cr] D J G B V Rk Asp. The genetic tester stocks included two varieties, 'Masterpiece' and 'V0687', and testers constructed on the 5-593 background, viz., j BC(2) 5-593, d j BC(2) 5-593, asp BC(2) 5-593, b v BC(2) 5-593, v BC(2) 5-593, and c(u) BC(3) 5-593. The seedcoat color genotype of 'Prim' was found to be P [Cr] d j G b v(lae). The implications of this genotype for pigment chemistry are discussed.
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