Mixed self and random mating at two loci
نویسندگان
چکیده
منابع مشابه
Zygotic Selection under Mixed Random Mating and Self-Fertilization: Theory and Problems of Estimation.
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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Fungi form one of the most ubiquitous and successful kingdoms of life on Earth. There are more than 100,000 known species of fungi, divided into four phyla — ascomycetes, basidiomycetes, zygomycetes and chytrids — and these have populated a vast array of biological niches, including those that are pathogens of animals (including humans and insects), plants and even other microorganisms. The mor...
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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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In Brassica species, self-incompatibility is controlled genetically by haplotypes involving two known genes, SLG and SRK, and possibly an as yet unknown gene controlling pollen incompatibility types. Alleles at the incompatibility loci are maintained by frequency-dependent selection, and diversity at SLG and SRK appears to be very ancient, with high diversity at silent and replacement sites, pa...
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In Schizosaccharomyces Pombe the mating-type information is stored at two transcriptionally silent loci (mat2 and mat3). The region between these sites ( K region) is inert for meiotic crossing over. The mating-type genes (M or P) are expressed only when present at a third, active locus (matl). We have earlier shown that the positional regulation of P genes is based on repression at the silent ...
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ژورنال
عنوان ژورنال: Genetical Research
سال: 1973
ISSN: 0016-6723,1469-5073
DOI: 10.1017/s0016672300013446