NEW LIGHT ON THE COMPLEXITIES OF ANTHOCYANIN INHERITANCE IN BRASSICA OLERACEA

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Abstract
Acyanic curly kale is homozygous for c-1 a gene that completely blocks anthocyanin synthesis. A survey of 24 cultivars of B. oleracea disclosed the presence of c-1 only in Variegated Orna-mental kale. A similar gene, but at another locus, was found in a glossy line of Brussel sprouts and named c-2. Linkage tests showed that the anthocyanin controlling gene A of curly kale is allelic to D for purple leaf blades of cabbage. Evidence for 4 and possibly 5 alleles at the A locus is given. A linkage test showed 44.47 [plus or minus] 2.31% recombination Between A and As, a gene for larger anther spot from marrow-stem kale. As is a member of another allelic series or groups of closely linked genes that control anthocyanin distribution. These findings make it possible to re-examine the results of previous workers and to clarify several perplexities in the literature.