GENETIC ANALYSIS OF BRASSICA OLERACEA USING NINE GENES FROM SPROUTING BROCCOLI

Abstract

Nine genes of Brassica oleracea (2n=18) are described: white petal (Wh), cream petal (cr), purple ovary (APb), persistent sepals (ps), glossy foliage (gl-1), pale green foliage (pg-1 and pg-2) and male sterility (ms-1 and ms-4) all from broccoli, and purple stem and ovary (Ack) from curly kale. These were tested for linkage, 2 at a time, in 33 of the possible 36 pairs. Three linkage were established. Persistent sepals (ps), previously known to be linked to the self-incompatibility locus, is also linked to A with 22.8[plus or minus]0.7% recombination. Cream petal (cr) and pg-1 are linked with 11.0[plus or minus]0.8% recombination. The previously known Wh and gl-1 linkage was confirmed, with 23.8[plus or minus]1.5% recombination. Thirty gene pairs showed independent segregation.