The frequency of the black gene increased from 0.25 to over 0.28 in two generations of hybridization of the wild and Chicago Black strains of Tribolium castaneum. Population budgets constructed from census data taken at five-day intervals over both generations reveal marked differences in the mortality schedules of the three genotypes. Selection over a generation is explained as a two-step process involving differential production of bb eggs and high +b survivorship.
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Contribution Nr. 147 from the Program in Ecology and Evolution at the State University of New York at Stony Brook. This investigation was supported by grant number BMS 6900343 A04 from the National Science Foundation.
The experiment reported here was initiated and supervised by Dr. Aykut Kence following earlier unpublished work by Dr David Wool. The technical assistance of Meral Kence and Che Nu Paul is much appreciated. Joyce Roe prepared the illustrations.
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McCauley, D.E., Sokal, R.R. Fitness components estimated from population budgets of genotypic mixtures and hybrid populations of Tribolium. Genetica 47, 197–202 (1977). https://doi.org/10.1007/BF00123241
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DOI: https://doi.org/10.1007/BF00123241