Backcrossing a complex black seed trait from diploid into tetraploid alfalfa avoids the complexities of tetrasomic inheritance

Black seed in alfalfa (Medicago sativa L.) may be useful as a seed marker and for pigmentation studies. The trait is controlled by three to four genes. Normal alfalfa seeds with tan coats have a dominant inhibitor of the black trait. Black seeds appear to be conditioned by a homozygous recessive all...

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