Abstract
The genetic control of somatic embryogenesis in alfalfa (Medicago sativa L.) was studied using one nonembryogenic and three embryogenic genotypes: A70-34, a selection from 'Rangelander'; RA3, a selection from 'Regen-S'; and C2-4, a selection from a breeding population that had A70-34 in its pedigree. Crosses of embryogenic × embryogenic and embryogenic × nonembryogenic and S1 and BC1 testcrosses were evaluated for in vitro regeneration. Selfing reduced the expression of the trait. Somatic embryogenesis was dominant and explained by two loci. All three regenerating genotypes shared a common genetic system.Key words: alfalfa, Medicago sativa, somatic embryogenesis, tissue culture.
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