Post by frogsleapfarm on Apr 9, 2011 19:48:45 GMT -5
In some lines the male sterile gene ms10 is linked to the anthocyanin absent (aa) mutant allele. Both traits are recessive. Because the traits co-segregate, the aa phenotype can be used to make a seedling identification of a male sterile plant. A few of Randy Gardner's hybrids use a ms10/aa female parent. The traits co-segregate in the F2. This spring I have some F2 populations tracing to crosses between one of Randy's experimental LB/EB resistant hybrids and some of my breeding lines. This weekend I noticed some light green seedlings interspersed in one of my flats - I'm almost certain these are aa seedlings. They have no anthocyanin in the hypocotyl and light green expanding leaves. I'll have to think if I want to keep the male steriles, and how I'd develop those lines.
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