Male sterility in meadowfoam

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Abstract
Male sterility, discovered in a natural population of Limnanthes douglasii var. nivea, was described briefly in terms of two distinct stages of failure of pollen develop ment. Premeiotic failure resulted in white abortive anthers and postmeiotic failure gave yellow anthers with non stainable pollen. Petal length and anther color were associated with male sterility. Segregation ratios in II families of male steriles pollinated by male sterile sibs suggested a dominant gene for male sterility. Seed set in crosses with seven other taxa in the genus indicated a large amount of variability due to both male and female parents. Potential use of male sterility in the breeding work on meadowform, a new oil crop under develop ment, is briefly discussed.

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