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Introgression of extranuclear genomes in finite populations: Nucleo-cytoplasmic incompatibility
https://ir.soken.ac.jp/records/3692
https://ir.soken.ac.jp/records/3692db54a963-e203-4b6f-9bea-53b7ddc7baf9
| 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 | Introgression of extranuclear genomes in finite populations: Nucleo-cytoplasmic incompatibility | |||||||
| タイトル | ||||||||
| タイトル | Introgression of extranuclear genomes in finite populations: Nucleo-cytoplasmic incompatibility | |||||||
| 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
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| 著者別名 |
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 ‘two locus two allele’ model is developed with special reference to the introgression of extranuclear genomes between two species of finite size. The model assumes that one locus, coded by a nuclear genome, causes the reproductive barrier while the other locus, coded by an extranuclear genome, causes nucleo-cytoplasmic incompatibility in particular genotypes. To fully study this model, simulations are conducted, and a diffusion equation is derived when introgression or extranuclear gene flow occurs in one direction. It is shown that although selection against the nuclear genome can reduce the levels of extranuclear gene flow and retard the introgression process, the dynamics are very similar to those without such selection. In contrast, the nucleo-cytoplasmic incompatibility directly affects the dynamics of introgressing extranuclear genomes: in large populations the ability of incompatibility to overcome extranuclear gene flow is conspicuous, but in small populations it is overshadowed by random sampling drift. Paternal leakage of extranuclear genomes, if present, is of evolutionary importance only when the male's migration rate is much larger than the female's. When the sizes of two populations are unequal, the introgression is most likely to occur from the larger population to the smaller one in the absence of mating preferences of backcross progeny. Recent observations on interspecific mitochondrial transfer in various species do not support the ubiquitousness of nucleo-cytoplasmic incompatibility as an efficient reproductive barrier. | |||||||
| 書誌情報 |
Genetical Research en : Genetical Research 巻 45, 号 2, p. 179-194, 発行日 1985 |
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| 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 | |||||||
| PubMed番号 | ||||||||
| 識別子タイプ | PMID | |||||||
| 関連識別子 | 4007489 | |||||||
| DOI | ||||||||
| 識別子タイプ | DOI | |||||||
| 関連識別子 | https://doi.org/10.1017/S0016672300022102 | |||||||
| 関連名称 | 10.1017/S0016672300022102 | |||||||
| 権利 | ||||||||
| 権利情報 | © Cambridge University Press | |||||||
