GENETICS OF 5 CYTOPLASMICALLY INHERITED YELLOW FOLIAR MUTANTS IN SOYBEAN

Both nuclear- and cytoplasmic-inherited chlorophyll-deficient mutants are known in soybean [Glycine max (L.) Merr.]. Five chlorophyll-deficient mutants were identified in our research program. Our objectives were to conduct inheritance studies of these mutants, to perform allelism tests of unknown mutants with known mutants, and to determine if nuclear-cytoplasmic interactions occurred. Genetic tests with all five mutants indicated that the yellow foliar phenotype was inherited uniparentally in each case through the maternal parent. These five cytoplasmically inherited mutants were added to the Soybean Genetic Type Collection and assigned gene symbols and T numbers. T314 was assigned to gene symbol cyt-Y4, T315 was assigned to cyt-Y5, T316 was assigned to cyt-Y6, T319 was assigned to cyt-Y7, and T320 was assigned to cyt-Y8. © 1992 Oxford University Press.