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  1. 010 学術雑誌論文
  2. 高畑, 尚之 / TAKAHATA, Naoyuki

Sexual recombination under the joint effects of mutation, selection, and random sampling drift

https://ir.soken.ac.jp/records/3785
https://ir.soken.ac.jp/records/3785
028a9ceb-565b-47aa-8240-a8780c2e05c4
Item type 学術雑誌論文 / Journal Article(1)
公開日 2013-07-09
タイトル
タイトル Sexual recombination under the joint effects of mutation, selection, and random sampling drift
タイトル
タイトル Sexual recombination under the joint effects of mutation, selection, and random sampling drift
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 TAKAHATA, Naoyuki

× TAKAHATA, Naoyuki

TAKAHATA, Naoyuki

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著者別名 尚之, 高畑

× 尚之, 高畑

尚之, 高畑

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抄録
内容記述タイプ Abstract
内容記述 The advantage or disadvantage of sexual reproduction or recombination for the accumulation of mutant genes in a population is studied under the joint effects of recurrent mutations, selection, and random sampling drift. To obtain the rate at which mutant genes are incorporated three different methods are used; numerical integration of Kolmogorov backward equations, simulation of stochastic difference equations, and Monte Carlo experiments. The first two methods are used in a two-locus system to obtain the fixation probability of double mutants and other related quantities under five different selection models. The third one is conducted for a multiple-locus system and the rate of accumulation of mutant genes per locus is studied. Comparison of the results between sexual and asexual populations shows that the effect of recombination depends on initial linkage disequilibrium, mutation rate v, selection intensity s, and population size Ne. The mode of selection is also an important factor and the large effect of recombination is observed when mutant genes are individually deleterious but collectively favorable. Under a given model of selection, the great advantage or disadvantage of recombination is achieved when a large extent of genetic polymorphism is produced not by mutation but by recombination. Extreme values of Nes and Nev make the effect insignificant. The results of Monte Carlo experiments also reveal the presence of interaction between selection and sampling drift even when the loci segregate independently and selection is multiplicative. Although this interaction is usually small, there are cases in which one locus theory cannot be used freely. In those cases, the effect of recombination is prominent and one locus theory gives an overestimate of the rate.
書誌情報 Theoretical Population Biology
en : Theoretical Population Biology

巻 22, 号 2, p. 258-277, 発行日 1982-10
出版者
出版者 Elsevier
ISSN
収録物識別子タイプ ISSN
収録物識別子 00405809
PubMed番号
識別子タイプ PMID
関連識別子 7179169
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/0040-5809(82)90045-4
関連名称 10.1016/0040-5809(82)90045-4
権利
権利情報 © 1982 Published by Elsevier Inc.
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