PHYLOGEOGRAPHIC PATTERNS INDICATE TRANSATLANTIC MIGRATION FROM EUROPE TO NORTH AMERICA IN THE RED SEAWEED CHONDRUS CRISPUS (GIGARTINALES, RHODOPHYTA)1
文献类型：期刊论文
| 作者 | Hu, ZiMin1; Guiry, Michael D.2; Critchley, Alan T.3; Duan, DeLin1; Duan, DL, Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 刊名 | JOURNAL OF PHYCOLOGY
 |
| 出版日期 | 2010-10-01 |
| 卷号 | 46期号:5页码:889-900 |
| 关键词 | Chondrus Crispus Glacial Refugia Mtdna Cox1 Nrdna Its2 Phylogeography Transatlantic Migration |
| ISSN号 | 0022-3646 |
| DOI | 10.1111/j.1529-8817.2010.00877.x |
| 文献子类 | Article |
| 英文摘要 | Inferring how the Pleistocene climate oscillations have repopulated the extant population structure of Chondrus crispus Stackh. in the North Atlantic Ocean is important both for our understanding of the glacial episode promoting diversification and for the conservation and development of marine organisms. C. crispus is an ecologically and commercially important red seaweed with broad distributions in the North Atlantic. Here, we employed both partial mtDNA Cox1 and nrDNA internal transcribed spacer region 2 (ITS2) sequences to explore the genetic structure of 17 C. crispus populations from this area. Twenty-eight and 30 haplotypes were inferred from these two markers, respectively. Analysis of molecular variance (AMOVA) and of the population statistic Theta(ST) not only revealed significant genetic structure within C. crispus populations but also detected significant levels of genetic subdivision among and within populations in the North Atlantic. On the basis of high haplotype diversity and the presence of endemic haplotypes, we postulate that C. crispus had survived in Pleistocene glacial refugia in the northeast Atlantic, such as the English Channel and the northwestern Iberian Peninsula. We also hypothesize that C. crispus from the English Channel refugium repopulated most of northeastern Europe and recolonized northeastern North America in the Late Pleistocene. The observed phylogeographic pattern of C. crispus populations is in agreement with a scenario in which severe Quaternary glaciations influenced the genetic structure of North Atlantic marine organisms with contiguous population expansion and locally restricted gene flow coupled with a transatlantic dispersal in the Late Pleistocene.; Inferring how the Pleistocene climate oscillations have repopulated the extant population structure of Chondrus crispus Stackh. in the North Atlantic Ocean is important both for our understanding of the glacial episode promoting diversification and for the conservation and development of marine organisms. C. crispus is an ecologically and commercially important red seaweed with broad distributions in the North Atlantic. Here, we employed both partial mtDNA Cox1 and nrDNA internal transcribed spacer region 2 (ITS2) sequences to explore the genetic structure of 17 C. crispus populations from this area. Twenty-eight and 30 haplotypes were inferred from these two markers, respectively. Analysis of molecular variance (AMOVA) and of the population statistic Theta(ST) not only revealed significant genetic structure within C. crispus populations but also detected significant levels of genetic subdivision among and within populations in the North Atlantic. On the basis of high haplotype diversity and the presence of endemic haplotypes, we postulate that C. crispus had survived in Pleistocene glacial refugia in the northeast Atlantic, such as the English Channel and the northwestern Iberian Peninsula. We also hypothesize that C. crispus from the English Channel refugium repopulated most of northeastern Europe and recolonized northeastern North America in the Late Pleistocene. The observed phylogeographic pattern of C. crispus populations is in agreement with a scenario in which severe Quaternary glaciations influenced the genetic structure of North Atlantic marine organisms with contiguous population expansion and locally restricted gene flow coupled with a transatlantic dispersal in the Late Pleistocene. |
| 学科主题 | Plant Sciences ; Marine & Freshwater Biology |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000282378200005 |
| 公开日期 | 2010-11-18 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/1608]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 通讯作者 | Duan, DL, Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Natl Univ Ireland Galway, Martin Ryan Inst, Galway, Ireland 3.Acadian Seaplants Ltd, Dartmouth, NS B3B 1X8, Canada |
| 推荐引用方式 GB/T 7714 | Hu, ZiMin,Guiry, Michael D.,Critchley, Alan T.,et al. PHYLOGEOGRAPHIC PATTERNS INDICATE TRANSATLANTIC MIGRATION FROM EUROPE TO NORTH AMERICA IN THE RED SEAWEED CHONDRUS CRISPUS (GIGARTINALES, RHODOPHYTA)1[J]. JOURNAL OF PHYCOLOGY,2010,46(5):889-900. |
| APA | Hu, ZiMin,Guiry, Michael D.,Critchley, Alan T.,Duan, DeLin,&Duan, DL, Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China.(2010).PHYLOGEOGRAPHIC PATTERNS INDICATE TRANSATLANTIC MIGRATION FROM EUROPE TO NORTH AMERICA IN THE RED SEAWEED CHONDRUS CRISPUS (GIGARTINALES, RHODOPHYTA)1.JOURNAL OF PHYCOLOGY,46(5),889-900. |
| MLA | Hu, ZiMin,et al."PHYLOGEOGRAPHIC PATTERNS INDICATE TRANSATLANTIC MIGRATION FROM EUROPE TO NORTH AMERICA IN THE RED SEAWEED CHONDRUS CRISPUS (GIGARTINALES, RHODOPHYTA)1".JOURNAL OF PHYCOLOGY 46.5(2010):889-900. |
入库方式： OAI收割
来源：海洋研究所
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