Frequency-dependent selection under mixed selfing and random mating
نویسندگان
چکیده
منابع مشابه
Inter-Genotypic Competition in Plant Populations II. Maintenance of Allelic Polymorphisms with Frequency-Dependent Selection and Mixed Selfing and Random Mating.
EPORTS by investigators in recent years indicate that substantial amounts of allelic polymorphism are often maintained in plant populations that exhibit various levels of outcrossing. The reason for this phenomenon is an important consideration in evolutionary theory, particularly for those organisms that exhibit a high degree of self-pollination (where the mating system would seem to impose a ...
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Although recombination cannot increase under conditions of random mating or complete selfing in regimes of constant selection, with mixed random mating and selfing, selection for increased recombination can occur. For some fitness regimes there may be selection for reduced recombination with both low and high degrees of selfing but selection for increased recombination with moderate degrees of ...
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ECENT studies on experimental populations of barley and lima beans (JAIN and ALLARD 1960; ALLARD and WORKMAN 1963; HARDING, ALLARD and SMELTZER, in preparation) have provided estimates of the intensity of the selection maintaining genetic variation in these predominantly self-fertilized species. In each experiment, selective values were estimated from census data on genotypic frequencies in suc...
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Nowadays, the population genetics analysis of autopolyploid species faces many difficulties due to (i) limited development of population genetics tools under polysomic inheritance, (ii) difficulties to assess allelic dosage when genotyping individuals and (iii) a form of inbreeding resulting from the mechanism of 'double reduction'. Consequently, few data analysis computer programs are applicab...
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We consider a model of frequency-dependent selection, which we refer to as the Wildcard Model. A variety of more specific models, representing quite diverse biological situations, are covered by the Wildcard Model as particular cases. Two very different particular models that are subsumed by the Wildcard Model are the game theoretically motivated two-phenotype model of Lessard [Lessard, S.,1984...
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ژورنال
عنوان ژورنال: Heredity
سال: 1970
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1970.26