Assortative Mating
Mostrando 13-24 de 50 artigos, teses e dissertações.
-
13. The Use of Assortative Mating for Heritability Estimation
-
14. Deviations from Hardy-Weinberg frequencies caused by assortative mating in hybrid populations
-
15. The Maintenance of Heterozygosity by Partial Negative Assortative Mating
-
16. Negative Assortative Mating: Exact Solution to a Simple Model
-
17. Assortative Mating Based on Phenotype: I. Two Alleles with Dominance
-
18. Assortative Mating Based on Phenotype: II. Two Autosomal Alleles without Dominance
-
19. Definition and Properties of Disequilibrium Statistics for Associations between Nuclear and Cytoplasmic Genotypes
We define and establish the interrelationships of four components of statistical association between a diploid nuclear gene and a uniparentally transmitted, haploid cytoplasmic gene: an allelic (gametic) disequilibrium (D), which measures associations between alleles at the two loci; and three genotypic disequilibria (D1, D 2, D3), which measure associations
-
20. Effects of Population Size and Selection Intensity on Responses to Disruptive Selection in DROSOPHILA MELANOGASTER
Disruptive selection for sternopleural bristle number with opportunity for random mating was done in the four treatment combinations of two population sizes (40 pairs and 8 pairs of selected parents) and two selection intensities (1 in 40 and 1 in 2). In each generation, matings among selected parents were observed in a mating chamber, and progeny collected
-
21. Cytonuclear Theory for Haplodiploid Species and X-Linked Genes. I. Hardy-Weinberg Dynamics and Continent-Island, Hybrid Zone Models
We develop models that describe the cytonuclear structure for either a cytoplasmic and nuclear marker in a haplodiploid species or a cytoplasmic and X-linked marker in a diploid species. Sex-specific disequilibrium statistics that summarize nonrandom cytonuclear associations in such systems are defined, and their basic Hardy-Weinberg dynamics and admixture f
-
22. Transmission of social attitudes.
Data gathered in Australia and England on the social attitudes of spouses and twins are largely consistent with a genetic model for family resemblance in social attitudes. There is substantial assortative mating and little evidence of vertical cultural inheritance.
-
23. Deviations from Hardy-Weinberg Frequencies Caused by Assortative Mating in Hybrid Populations
The conventional formulas for genotype frequencies in a hybrid population H produced by interbreeding from ancestral populations P1 and P2 involve only one hybrid parameter M, equal to the fraction of alleles derived from P2. For the one-parameter model to be accurate, all individuals of H must have probabilities for alleles determined by one and the same M.
-
24. Disruptive sexual selection against hybrids contributes to speciation between Heliconius cydno and Heliconius melpomene.
Understanding the fate of hybrids in wild populations is fundamental to understanding speciation. Here we provide evidence for disruptive sexual selection against hybrids between Heliconius cydno and Heliconius melpomene. The two species are sympatric across most of Central and Andean South America, and coexist despite a low level of hybridization. No-choice