CHARACTERIZATION OF A MALE-STERILE SYSTEM WITH A CLOSELY LINKED SEEDLING MARKER TO FACILITATE F1 HYBRID TOMATO SEED PRODUCTION

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  • 1 Department of Horticulture, Purdue University, West Lafayette, IN 47907

The coupling phase linkages have been synthesized between the gene aw (without anthocyanin) and the male sterile gene ms15 (and its alleles ms26, ms47, and an Israeli source of male sterility). Less than 2 map units separate aw and ms15 on chromosome 2, providing a convenient seedling marker gene to rapidly identify male sterility for both inbred development and hybrid seed production. The seedling marker also provides a convenient marker to rapidly assess hybrid seed purity. Unique features of each of the alleles involved in male sterility and their use in inbred and hybrid development will be described.

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