Two Major Genes for Time of Flowering and Maturity in Soybeans1
- R. L. Bernard2
Two independent gene pairs affecting time of flowering and maturity in soybeans (Glycine max (L.) Merr.) were identified and studied in a common genetic background developed by backcrossing to the commercial variety ‘Clark.’ E1, a gene for lateness linked to pubescence color (T t), was transferred from strain T175, and e2, a gene for earliness, from T245. The late allele at each locus was partially dominant in most combinations. Flowering and maturity dates for the homozygotes based on 2 years data at Urbana, Ill., are summarized below as number of days earlier (−) or later (+) than Clark.
|Clark-e2||e1 e2||− 7||−14|
|Clark-E1 e2||E1 E2||+ 9||+ 1|
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