Abstract
The genetic control of self-incompatibility and the number of S-alleles were studied in a population of Phlox drummondii from Lytle, Texas. Thirty-four seedlings were transplanted to the greenhouse. Each was self-fertilized (using bud pollination) to generate self families of 9–11 plants. Complete diallels were performed within each family. Twenty-four families contained three cross-compatibility phenotypes whose crossing relationships indicated that self-incompatibility was under gametophytic control and governed by one gene. Homozygotes from twenty-four families were crossed in a half-diallel for S-genotype assignment. Thirty S-alleles were detected. Allele frequencies did not deviate significantly from equality.
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Levin, D. S-gene polymorphism in Phlox drummondii. Heredity 71, 193–198 (1993). https://doi.org/10.1038/hdy.1993.124
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DOI: https://doi.org/10.1038/hdy.1993.124
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