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

Persistence of neutral polymorphisms in Lake Victoria cichlid fish

https://ir.soken.ac.jp/records/3762
https://ir.soken.ac.jp/records/3762
20a64be4-0ca7-4d03-866d-b31904e99a5e
Item type 学術雑誌論文 / Journal Article(1)
公開日 2013-07-08
タイトル
タイトル Persistence of neutral polymorphisms in Lake Victoria cichlid fish
タイトル
言語 en
タイトル Persistence of neutral polymorphisms in Lake Victoria cichlid fish
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 NAGL, Sandra

× NAGL, Sandra

WEKO 1675

NAGL, Sandra

Search repository
TICHY, Herbert

× TICHY, Herbert

WEKO 1626

TICHY, Herbert

Search repository
MAYER, Werner E

× MAYER, Werner E

WEKO 1551

MAYER, Werner E

Search repository
TAKAHATA, Naoyuki

× TAKAHATA, Naoyuki

WEKO 778

TAKAHATA, Naoyuki

Search repository
KLEIN, Jan

× KLEIN, Jan

WEKO 1552

KLEIN, Jan

Search repository
著者別名 尚之, 高畑

× 尚之, 高畑

WEKO 1577
NRID 1000030124217
e-Rad 30124217

尚之, 高畑

Search repository
抄録
内容記述タイプ Abstract
内容記述 Phylogenetic trees for groups of closely related species often have different topologies, depending on the genes used. One explanation for the discordant topologies is the persistence of polymorphisms through the speciation phase, followed by differential fixation of alleles in the resulting species. The existence of transspecies polymorphisms has been documented for alleles maintained by balancing selection but not for neutral alleles. In the present study, transspecific persistence of neutral polymorphisms was tested in the endemic haplochromine species flock of Lake Victoria cichlid fish. Putative noncoding region polymorphisms were identified at four randomly selected nuclear loci and tested on a collection of 12 Lake Victoria species and their putative riverine ancestors. At all loci, the same polymorphism was found to be present in nearly all the tested species, both lacustrine and riverine. Different polymorphisms at these loci were found in cichlids of other East African lakes (Malawi and Tanganyika). The Lake Victoria polymorphisms must have therefore arisen after the flocks now inhabiting the three great lakes diverged from one another, but before the riverine ancestors of the Lake Victoria flock colonized the Lake. Calculations based on the mtDNA clock suggest that the polymorphisms have persisted for about 1.4 million years. To maintain neutral polymorphisms for such a long time, the population size must have remained large throughout the entire period.
書誌情報 Proceedings of the National Academy of Sciences of the United States of America
en : Proceedings of the National Academy of Sciences of the United States of America

巻 95, 号 24, p. 14238-14243, 発行日 1998-11-24
出版者
出版者 National Academy of Sciences
ISSN
収録物識別子タイプ ISSN
収録物識別子 10916490
PubMed番号
識別子タイプ PMID
関連識別子 9826684
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.1073/pnas.95.24.14238
関連名称 10.1073/pnas.95.24.14238
権利
権利情報 © 1998, The National Academy of Sciences
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