Morphological and genetic variation in the North Atlantic copepod, Centropages typicus
This study describes phenotypic and genotypic variations in the planktonic copepod, Centropages typicus (Copepoda: Calanoida) that indicate differentiation between geographical samples. We found consistent differences in the morphology of the chela of the sexually modified fifth pereiopod (P5) of ma...
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Cambridge University Press (CUP)
2011
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Online Access: | http://dx.doi.org/10.1017/s0025315411000932 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315411000932 |
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crcambridgeupr:10.1017/s0025315411000932 2024-09-15T18:20:51+00:00 Morphological and genetic variation in the North Atlantic copepod, Centropages typicus Castellani, Claudia Lindley, Alistair J. Wootton, Marianne Lee, Christopher M. Kirby, Richard R. 2011 http://dx.doi.org/10.1017/s0025315411000932 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315411000932 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 92, issue 1, page 99-106 ISSN 0025-3154 1469-7769 journal-article 2011 crcambridgeupr https://doi.org/10.1017/s0025315411000932 2024-08-14T04:04:13Z This study describes phenotypic and genotypic variations in the planktonic copepod, Centropages typicus (Copepoda: Calanoida) that indicate differentiation between geographical samples. We found consistent differences in the morphology of the chela of the sexually modified fifth pereiopod (P5) of male C. typicus between samples from the Mediterranean, western North Atlantic and eastern North Atlantic. A 560 base pairs (bp) region of the C. typicus mitochondrial cytochrome c oxidase subunit I (COI) and a 462 bp fragment of the nuclear rDNA internal transcribed spacer (ITS) tandem array were analysed to determine whether these morphological variations reflect population genetic differentiation. Mitochondrial haplotype diversity was found to be high with 100 unique COI haplotypes among 116 individuals. Analysis of mtCOI variation suggested differentiation between the Mediterranean and Atlantic populations but no separation was detected within the Atlantic. Intragenomic variation in the ITS array suggested genetic differentiation between samples from the western North Atlantic and those from the eastern North Atlantic and Mediterranean. Breeding experiments would be required to elucidate the extent of genetic isolation between C. typicus from the different population centres. Article in Journal/Newspaper North Atlantic Cambridge University Press Journal of the Marine Biological Association of the United Kingdom 92 1 99 106 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
This study describes phenotypic and genotypic variations in the planktonic copepod, Centropages typicus (Copepoda: Calanoida) that indicate differentiation between geographical samples. We found consistent differences in the morphology of the chela of the sexually modified fifth pereiopod (P5) of male C. typicus between samples from the Mediterranean, western North Atlantic and eastern North Atlantic. A 560 base pairs (bp) region of the C. typicus mitochondrial cytochrome c oxidase subunit I (COI) and a 462 bp fragment of the nuclear rDNA internal transcribed spacer (ITS) tandem array were analysed to determine whether these morphological variations reflect population genetic differentiation. Mitochondrial haplotype diversity was found to be high with 100 unique COI haplotypes among 116 individuals. Analysis of mtCOI variation suggested differentiation between the Mediterranean and Atlantic populations but no separation was detected within the Atlantic. Intragenomic variation in the ITS array suggested genetic differentiation between samples from the western North Atlantic and those from the eastern North Atlantic and Mediterranean. Breeding experiments would be required to elucidate the extent of genetic isolation between C. typicus from the different population centres. |
format |
Article in Journal/Newspaper |
author |
Castellani, Claudia Lindley, Alistair J. Wootton, Marianne Lee, Christopher M. Kirby, Richard R. |
spellingShingle |
Castellani, Claudia Lindley, Alistair J. Wootton, Marianne Lee, Christopher M. Kirby, Richard R. Morphological and genetic variation in the North Atlantic copepod, Centropages typicus |
author_facet |
Castellani, Claudia Lindley, Alistair J. Wootton, Marianne Lee, Christopher M. Kirby, Richard R. |
author_sort |
Castellani, Claudia |
title |
Morphological and genetic variation in the North Atlantic copepod, Centropages typicus |
title_short |
Morphological and genetic variation in the North Atlantic copepod, Centropages typicus |
title_full |
Morphological and genetic variation in the North Atlantic copepod, Centropages typicus |
title_fullStr |
Morphological and genetic variation in the North Atlantic copepod, Centropages typicus |
title_full_unstemmed |
Morphological and genetic variation in the North Atlantic copepod, Centropages typicus |
title_sort |
morphological and genetic variation in the north atlantic copepod, centropages typicus |
publisher |
Cambridge University Press (CUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1017/s0025315411000932 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315411000932 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 92, issue 1, page 99-106 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0025315411000932 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
92 |
container_issue |
1 |
container_start_page |
99 |
op_container_end_page |
106 |
_version_ |
1810459231507185664 |