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

A model of extranuclear genomes and the substitution rate under within-generation selection

https://ir.soken.ac.jp/records/3693
https://ir.soken.ac.jp/records/3693
56df2542-0a1a-474e-9b9c-157de5d72916
Item type 学術雑誌論文 / Journal Article(1)
公開日 2013-07-02
タイトル
タイトル A model of extranuclear genomes and the substitution rate under within-generation selection
タイトル
タイトル A model of extranuclear genomes and the substitution rate under within-generation selection
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 A single locus model of extranuclear genomes is developed under the assumption of the complete action of within-generation drift which is caused by random transmission of multiple copy genomes during cell division in a generation. Within-generation drift segregates different copy genomes in a cell into different cells, resulting in homoplasmic cells. Under some conditions, the present model reduces to that for haploid nuclear genomes. A point overlooked in previous models is that the multiplicity also admits of the possibility of selection occurring within a cell or between cells in an individual (within-generation selection). If there is selection mediated by, for instance, differential proliferation of genomes, then a haploid model no longer explains the dynamics of extranuclear genomes. Rather a model analogous to biased gene conversion at a single locus (Nagylaki, 1983; Walsh, 1983) is more appropriate. An application of this model to either the fixation probability or substitution rate of new mutations shows that strictly maternal inheritance does not allow the fullest use of mutations, as it obscures the effect of within-generation selection. But if there is appreciable paternal contribution, within-generation selection could be a strong evolutionary force to which nuclear genomes are never exposed.
書誌情報 Genetical Research
en : Genetical Research

巻 44, 号 1, p. 109-116, 発行日 1984
出版者
出版者 Cambridge University Press
ISSN
収録物識別子タイプ ISSN
収録物識別子 00166723
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.1017/S0016672300026288
関連名称 10.1017/S0016672300026288
権利
権利情報 © Cambridge University Press
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