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Eight virescent and morphological mutants were found in a cotton (Gossypium hirsutum L.) breeding nursery at College Station, Tex., in 1962. Four of those mutants were conditioned by the same recessive allele. The mutant was named yellow-veins and assigned the symbol y
. The phenotype of the mutant is described as is variability associated with expression of the trait. Analyses with 38 other mutant loci provided evidence for linkage of y
with Rugate (Ru) and virescent-1 (
1) to establish linkage group XVII, Ru-37-y
-30-
1.
Key Words: Mendelian segregation Linkage Environmental interaction Spontaneous mutants
2 Research geneticist, USDA-ARS, College Station, TX 77841.
Received for publication November 2, 1981.
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