A multiplicative-epistatic model for analyzing interspecific differences in outcrossing species

Biometrics
R L Wu, B Li

Abstract

Epistasis may play an important role in evolution and speciation. Under multiplicative interactions between different loci, an analytical model is proposed to estimate genetic parameters at the individual locus level that contribute to interspecific differences in outcrossing species. The multiplicative epistasis model, inferred from a number of animal and plant experiments, suggests that genotypes at a pair of loci have genotypic values equal to the product of genotypic values at the two different loci. By considering the genetic property of outcrossing species (i.e., high polymorphisms) in the multilevel family structure analysis for an intra- and interspecific factorial mating design, a method is developed to provide estimates for allele frequencies and additive and dominant effects at individual loci in each of the two parental populations, the genotypic values of newly formed heterozygotes through species combination each with one allele from a parental population and the second from the other parental population, and the numbers of genetic factors that lead to species differentiation. Use of clones offers a tremendous power to test the adequacy of the model. However, the utilization of the model with species that cannot b...Continue Reading

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Citations

Nov 12, 2015·Medicine·Qingxi MengWeiguo Wang
Sep 1, 2015·Asian Pacific Journal of Cancer Prevention : APJCP·Mohammad IrshadHamza Mohammad Abdulghani
Aug 27, 2015·PloS One·Peiliang GengHoujie Liang
May 27, 2016·Genetic Testing and Molecular Biomarkers·Senlin HuangTao Zeng
Dec 12, 2018·The Plant Journal : for Cell and Molecular Biology·Mengmeng SangRongling Wu
Apr 10, 2021·Briefings in Bioinformatics·Ying ZhangRunqing Yang

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