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タイトル: Colour variation of the intertidal hermit crab 𝘊𝘭𝘪𝘣𝘢𝘯𝘢𝘳𝘪𝘶𝘴 𝘷𝘪𝘳𝘦𝘴𝘤𝘦𝘯𝘴 considering growth stage, geographic area in the Indo–West Pacific Ocean, and molecular phylogeny
著者: Yoshikawa, Akihiro
Ikeo, Kazuho
Imoto, Junichi
Jaingam, Wachirah
Putri, Lily Surayya Eka
Mardiansyah
Nakano, Tomoyuki  kyouindb  KAKEN_id  orcid https://orcid.org/0009-0008-0109-1289 (unconfirmed)
Shimomura, Michitaka
Asakura, Akira  kyouindb  KAKEN_id
著者名の別形: 中野, 智之
下村, 通誉
朝倉, 彰
キーワード: COI
colouration
haplotype
Indo–West Pacific
intertidal area
rocky shore
発行日: Nov-2020
出版者: Cambridge University Press (CUP)
誌名: Journal of the Marine Biological Association of the United Kingdom
巻: 100
号: 7
開始ページ: 1107
終了ページ: 1121
抄録: Members of 𝘊𝘭𝘪𝘣𝘢𝘯𝘢𝘳𝘪𝘶𝘴 𝘷𝘪𝘳𝘦𝘴𝘤𝘦𝘯𝘴 show considerable intraspecific colour variation, including colouration of the second/third pereopods (green/white) and the dactyls of the second/third pereopods (with or without dark bands/patches). However, factors inducing these colour variations have not yet been elucidated. Here, we investigated the occurrence of colour variation in this species with particular emphasis on change of colouration associated with growth stage and region in specimens from tropical/subtropical to warm temperate areas in the Indo–West Pacific, including evidence from molecular phylogeny based on the cytochrome c oxidase subunit I (COI). We have, then, clarified that the colouration on the pereopod dactyls gradually changed from solid colour (yellow/white) to having dark-coloured area(s) or transverse band(s) as a result of the growth stage. The frequency of occurrence of the solid colour dactyls was higher than those of other colour types in tropical regions. Our results also indicated that the white ambulatory leg type was the colouration type that was frequently seen in juvenile stages. However, significant genetic differences were not detected between each colouration determined by molecular analysis of samples from 14 localities in the Indo-West Pacific region; in contrast, two genetically differentiated regional populations (North Australia; Phuket, Thailand; and Lombok, Indonesia) were detected. The present study, therefore, emphasizes the necessity for further study on the colour variation of marine animals focusing on growth stages and regional differences, with molecular data to facilitate the research on adaptation and/or speciation, especially in geographically widely distributed species.
著作権等: Copyright © Marine Biological Association of the United Kingdom 2020
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
URI: http://hdl.handle.net/2433/293770
DOI(出版社版): 10.1017/s002531542000106x
関連リンク: https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S002531542000106X
出現コレクション:学術雑誌掲載論文等

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