翻訳と辞書 Words near each other ・ Quasi-geostrophic equations ・ Quasi-harmonic approximation ・ Quasi-Hilda comet ・ Quasi-homogeneous polynomial ・ Quasi-Hopf algebra ・ Quasi-identifier ・ Quasi-invariant measure ・ Quasi-irreversible inhibitor ・ Quasi-isometry ・ Quasi-isomorphism ・ Quasi-judicial body ・ Quasi-judicial proceedings ・ Quasi-legislative capacity ・ Quasi-Lie algebra ・ Quasi-likelihood ・ Quasi-linkage equilibrium ・ Quasi-market ・ Quasi-maximum likelihood ・ Quasi-median networks ・ Quasi-Monte Carlo method ・ Quasi-Monte Carlo methods in finance ・ Quasi-Newton Inverse Least Squares Method ・ Quasi-Newton Least Squares Method ・ Quasi-Newton method ・ Quasi-Objects ・ Quasi-one-dimensional models ・ Quasi-open map ・ Quasi-opportunistic supercomputing ・ Quasi-peak detector ・ Quasi-perfect equilibrium Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Quasi-linkage equilibrium ： ウィキペディア英語版 Quasi-linkage equilibrium Quasi-linkage equilibrium (QLE) is a mathematical approximation used in solving population genetics problems. Motoo Kimura introduced the notion to simplify a model of Fisher's fundamental theorem. QLE greatly simplifies population genetic equations while making the assumption of weak selection and weak epistasis. Selection under these conditions rapidly changes allele frequencies to a state where they evolve as if in linkage equilibrium. Kimura originally provided the sufficient conditions for QLE in two-locus systems, but recently several researchers have shown how QLE occurs in general multilocus systems. QLE allows theorists to approximate linkage disequilibria by simple expressions, often simple functions of allele or genotype frequencies, thereby providing solutions to highly complex problems involving selection on multiple loci or polygenic traits. QLE also plays an important role in justifying approximations in the derivation of quantitative genetic equations from mendelian principles. == Simple Model == Let $X$, $Y$, $Z$ and $U$ represent the frequencies of the four possible genotypes in a haploid two-locus-two-allele model. Kimura's original model〔 showed that $$ R = \frac approaches a stable state $\backslash hat$ rapidly if epistatic effects are small relative to recombination. Deviations from $\backslash hat$ will be reduced by the recombination fraction every generation. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Quasi-linkage equilibrium」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.