Limiting genotype frequencies of Y-linked genes through bisexual branching processes with blind choice |
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| Authors: | Alsmeyer G Gutiérrez C Martínez R |
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| Institution: | a Institute of Mathematical Statistics, Department of Mathematics and Computer Science, University of Münster, D-48149 Münster, Germany
b Department of Mathematics, University of Extremadura, 06006 Badajoz, Spain |
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| Abstract: | The limiting genotype growth rates and the limiting genotype frequencies of Y-linked genes are studied in a two-sex monogamous population. To this end, the evolution of the numbers of females, males, and mating units of each genotype is modelled by a multitype bisexual branching process in which it assumed that the gene has no influence on the mating process. It is deduced from this model that the average numbers of female and male descendants per mating unit of a genotype determine its growth rate, which does not depend on the behaviour of the other genotypes. Hence, the dominant genotype is found. Conditions for the simultaneous survival of genotypes to have positive probability are also investigated. Finally, the main results are illustrated by means of examples. |
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| Keywords: | Sex-linked inheritance Bidimensional two-sex stochastic model Perfect fidelity mating Rates of growth |
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