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タイトル: Genomic regions and genes related to inter-population differences in body size in the ground beetle Carabus japonicus
著者: Komurai, Ryohei
Fujisawa, Tomochika
Okuzaki, Yutaka
Sota, Teiji  KAKEN_id
著者名の別形: 小村井, 亮平
藤澤, 知親
奥崎, 穣
曽田, 貞滋
キーワード: Ecological genetics
Evolutionary genetics
Quantitative trait
発行日: 10-Aug-2017
出版者: Springer Nature
誌名: Scientific Reports
巻: 7
論文番号: 7773
抄録: Body size is a key trait in diversification among animal species, and revealing the gene regions responsible for body size diversification among populations or related species is important in evolutionary biology. We explored the genomic regions associated with body size differences in Carabus japonicus ground beetle populations by quantitative trait locus (QTL) mapping of F2 hybrids from differently sized parents from two populations using restriction site-associated DNA sequencing and de novo assembly of the beetle whole genome. The assembled genome had a total length of 191 Mb with a scaffold N50 of 0.73 Mb; 14, 929 protein-coding genes were predicted. Three QTLs on different linkage groups had major effects on the overall size, which is composed chiefly of elytral length. In addition, we found QTLs on autosomal and X chromosomal linkage groups that affected head length and width, thoracic width, and elytral width. We determined the gene loci potentially related to control of body size in scaffolds of the genome sequence, which contained the QTL regions. The genetic basis of body size variation based on a small number of major loci would promote differentiation in body size in response to selection pressures related to variations in environmental conditions and inter-specific interactions.
著作権等: © The Author(s) 2017. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
URI: http://hdl.handle.net/2433/246436
DOI(出版社版): 10.1038/s41598-017-08362-7
PubMed ID: 28798311
出現コレクション:学術雑誌掲載論文等

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