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This article in CS

  1. Vol. 7 No. 1, p. 79-80
    Received: Aug 10, 1966

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Allelic among Ragged Leaf, Heritable Abnormalities 1, 2, and 3, Veins-Fused, and Rugose Mutants in American Upland Cotton, Gossypium hirsutum L.1

  1. R. J. Kohel2



Six monogenic mutants that occurred spontaneously in Gossypium hirsutum were tested for allelism. Allelic tests were conducted among ragged leaf and Heritable Abnormalities l, 2, and 3 because of similar gene action. In all of these the mutant form is the heterozygote while the homozygote is semilethal. Veins-fused and rugose were included because of phenotypic similarities to Heritable Abnormalities 1 and 3, respectively. Ragged leaf and Heritable Abnormality 2 were independent of each other and of the other mutants. Heritable Abnormalities 1 and 3, veins-fused, and rugose were allelic and located at the crinkled-dwarf (cr) locus. Heritable abnormality I and veins-fused are phenotypically distinct from Heritable Abnormality 3 and rugose. This divergence of function is similar to that in the crinkled-dwarf alleles of G. barbadense and suggests the existence of either a complex locus or two separate loci with tight linkage.

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