Delineation of Chondrus (Gigartinales, Florideophyceae) in China and the origin of C-crispus inferred from molecular data
Complete nuclear ribosomal DNA (nrDNA) internal transcribed spacer (ITS) sequences were obtained for 18 Chondrus populations collected at 15 sites from eight countries worldwide. Pairwise comparisons with the multiple alignment revealed that intraspecific divergences of ITS sequences ranged from 0.3...
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/32598 2023-05-15T15:12:11+02:00 Delineation of Chondrus (Gigartinales, Florideophyceae) in China and the origin of C-crispus inferred from molecular data Hu, Zimin Critchley, Alan T. Gao, Tianxiang Zeng, Xiaoqi Morrell, Steve L. Duan, Delin 2007 http://ir.qdio.ac.cn/handle/337002/32598 https://doi.org/10.1080/17451000701335679 英语 eng MARINE BIOLOGY RESEARCH http://ir.qdio.ac.cn/handle/337002/32598 doi:10.1080/17451000701335679 Biogeography Chondrus Stackhouse Internal Transcribed Spacer Phylogeny Taxonomy Article 期刊论文 2007 ftchinacasciocas https://doi.org/10.1080/17451000701335679 2022-06-27T05:37:01Z Complete nuclear ribosomal DNA (nrDNA) internal transcribed spacer (ITS) sequences were obtained for 18 Chondrus populations collected at 15 sites from eight countries worldwide. Pairwise comparisons with the multiple alignment revealed that intraspecific divergences of ITS sequences ranged from 0.3 to 1.8% in C. crispus Stackhouse (except for the entity SVLH from France) and from 0.0 to 0.6% in C. ocellatus Holmes, whereas interspecific divergences in Chondrus varied from 1.4 to 5.0%. Three phylogenetic methods (neighbour joining, maximum parsimony and maximum likelihood) confirmed three main lineages: the North Atlantic lineage containing entities of C. crispus from Canada, France, Germany, England, Portugal, Ireland and Wales; a second lineage comprising three species: C. sp. 1, C. armatus (Harvey) Yamada et Mikami, and C. pinnulatus (Harvey) Okamura from the Northern Pacific; and a third lineage containing just one species: C. ocellatus from the Northern Pacific. Chondrus yendoi Yamada et Mikami separated from other Chondrus species singly. nrDNA ITS data indicate that a previous assignment of C. sp. 2 to Mazzaella japonica (Mikami) Hommersand may be incorrect, and additional evidence is needed to resolve the generic placement of this entity. It is inferred from the nrDNA ITS data that three Chondrus species are presently known in China with two, C. ocellatus and C. nipponicus, in Qingdao and two, C. armatus and C. nipponicus, in Dalian. We hypothesize that the ancestor of North Atlantic C. crispus had a Pacific origin, and that the present distribution of C. crispus in the Atlantic Ocean correlates with a trans-Arctic dispersal and vicariance events associated with Pleistocene glaciation maxima. Article in Journal/Newspaper Arctic North Atlantic Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Arctic Canada Pacific Marine Biology Research 3 3 145 154 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Biogeography Chondrus Stackhouse Internal Transcribed Spacer Phylogeny Taxonomy |
spellingShingle |
Biogeography Chondrus Stackhouse Internal Transcribed Spacer Phylogeny Taxonomy Hu, Zimin Critchley, Alan T. Gao, Tianxiang Zeng, Xiaoqi Morrell, Steve L. Duan, Delin Delineation of Chondrus (Gigartinales, Florideophyceae) in China and the origin of C-crispus inferred from molecular data |
topic_facet |
Biogeography Chondrus Stackhouse Internal Transcribed Spacer Phylogeny Taxonomy |
description |
Complete nuclear ribosomal DNA (nrDNA) internal transcribed spacer (ITS) sequences were obtained for 18 Chondrus populations collected at 15 sites from eight countries worldwide. Pairwise comparisons with the multiple alignment revealed that intraspecific divergences of ITS sequences ranged from 0.3 to 1.8% in C. crispus Stackhouse (except for the entity SVLH from France) and from 0.0 to 0.6% in C. ocellatus Holmes, whereas interspecific divergences in Chondrus varied from 1.4 to 5.0%. Three phylogenetic methods (neighbour joining, maximum parsimony and maximum likelihood) confirmed three main lineages: the North Atlantic lineage containing entities of C. crispus from Canada, France, Germany, England, Portugal, Ireland and Wales; a second lineage comprising three species: C. sp. 1, C. armatus (Harvey) Yamada et Mikami, and C. pinnulatus (Harvey) Okamura from the Northern Pacific; and a third lineage containing just one species: C. ocellatus from the Northern Pacific. Chondrus yendoi Yamada et Mikami separated from other Chondrus species singly. nrDNA ITS data indicate that a previous assignment of C. sp. 2 to Mazzaella japonica (Mikami) Hommersand may be incorrect, and additional evidence is needed to resolve the generic placement of this entity. It is inferred from the nrDNA ITS data that three Chondrus species are presently known in China with two, C. ocellatus and C. nipponicus, in Qingdao and two, C. armatus and C. nipponicus, in Dalian. We hypothesize that the ancestor of North Atlantic C. crispus had a Pacific origin, and that the present distribution of C. crispus in the Atlantic Ocean correlates with a trans-Arctic dispersal and vicariance events associated with Pleistocene glaciation maxima. |
format |
Article in Journal/Newspaper |
author |
Hu, Zimin Critchley, Alan T. Gao, Tianxiang Zeng, Xiaoqi Morrell, Steve L. Duan, Delin |
author_facet |
Hu, Zimin Critchley, Alan T. Gao, Tianxiang Zeng, Xiaoqi Morrell, Steve L. Duan, Delin |
author_sort |
Hu, Zimin |
title |
Delineation of Chondrus (Gigartinales, Florideophyceae) in China and the origin of C-crispus inferred from molecular data |
title_short |
Delineation of Chondrus (Gigartinales, Florideophyceae) in China and the origin of C-crispus inferred from molecular data |
title_full |
Delineation of Chondrus (Gigartinales, Florideophyceae) in China and the origin of C-crispus inferred from molecular data |
title_fullStr |
Delineation of Chondrus (Gigartinales, Florideophyceae) in China and the origin of C-crispus inferred from molecular data |
title_full_unstemmed |
Delineation of Chondrus (Gigartinales, Florideophyceae) in China and the origin of C-crispus inferred from molecular data |
title_sort |
delineation of chondrus (gigartinales, florideophyceae) in china and the origin of c-crispus inferred from molecular data |
publishDate |
2007 |
url |
http://ir.qdio.ac.cn/handle/337002/32598 https://doi.org/10.1080/17451000701335679 |
geographic |
Arctic Canada Pacific |
geographic_facet |
Arctic Canada Pacific |
genre |
Arctic North Atlantic |
genre_facet |
Arctic North Atlantic |
op_relation |
MARINE BIOLOGY RESEARCH http://ir.qdio.ac.cn/handle/337002/32598 doi:10.1080/17451000701335679 |
op_doi |
https://doi.org/10.1080/17451000701335679 |
container_title |
Marine Biology Research |
container_volume |
3 |
container_issue |
3 |
container_start_page |
145 |
op_container_end_page |
154 |
_version_ |
1766342912942014464 |