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Phylogeographic structure and deep lineage diversification of the red alga Chondrus ocellatus Holmes in the Northwest Pacific.
Mol Ecol. 2015 Oct; 24(19):5020-33.ME

Abstract

A major goal of phylogeographic analysis using molecular markers is to understand the ecological and historical variables that influence genetic diversity within a species. Here, we used sequences of the mitochondrial Cox1 gene and nuclear internal transcribed spacer to reconstruct its phylogeography and demographic history of the intertidal red seaweed Chondrus ocellatus over most of its geographical range in the Northwest Pacific. We found three deeply separated lineages A, B and C, which diverged from one another in the early Pliocene-late Miocene (c. 4.5-7.7 Ma). The remarkably deep divergences, both within and between lineages, appear to have resulted from ancient isolations, accelerated by random drift and limited genetic exchange between regions. The disjunct distributions of lineages A and C along the coasts of Japan may reflect divergence during isolation in scattered refugia. The distribution of lineage B, from the South China Sea to the Korean Peninsula, appears to reflect postglacial recolonizations of coastal habitats. These three lineages do not coincide with the three documented morphological formae in C. ocellatus, suggesting that additional cryptic species may exist in this taxon. Our study illustrates the interaction of environmental variability and demographic processes in producing lineage diversification in an intertidal seaweed and highlights the importance of phylogeographic approaches for discovering cryptic marine biodiversity.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Hu ZM
Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China.
Li JJ
Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China. College of Earth Science, University of Chinese Academy of Sciences, Beijing, 100049, China.
Sun ZM
Laboratory of Marine Organism Taxonomy & Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China.
Oak JH
Department of Oceanography, Pusan National University, Pusan, 609-735, Korea.
Zhang J
Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China. College of Earth Science, University of Chinese Academy of Sciences, Beijing, 100049, China.
Fresia P
Unidad de Bioinformática, Institut Pasteur de Montevideo, Mataojo 2020, Montevideo, Uruguay.
Grant WS
Alaska Department of Fish and Game, Anchorage, AK, 99518, USA.
Duan DL
Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China.

MeSH

Biological EvolutionChondrusDNA, MitochondrialDNA, PlantDNA, Ribosomal SpacerEcosystemGenetic VariationGenetics, PopulationMolecular Sequence DataNorthwestern United StatesPhylogenyPhylogeographySequence Analysis, DNA

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26334439

Citation

Hu, Zi-Min, et al. "Phylogeographic Structure and Deep Lineage Diversification of the Red Alga Chondrus Ocellatus Holmes in the Northwest Pacific." Molecular Ecology, vol. 24, no. 19, 2015, pp. 5020-33.
Hu ZM, Li JJ, Sun ZM, et al. Phylogeographic structure and deep lineage diversification of the red alga Chondrus ocellatus Holmes in the Northwest Pacific. Mol Ecol. 2015;24(19):5020-33.
Hu, Z. M., Li, J. J., Sun, Z. M., Oak, J. H., Zhang, J., Fresia, P., Grant, W. S., & Duan, D. L. (2015). Phylogeographic structure and deep lineage diversification of the red alga Chondrus ocellatus Holmes in the Northwest Pacific. Molecular Ecology, 24(19), 5020-33. https://doi.org/10.1111/mec.13367
Hu ZM, et al. Phylogeographic Structure and Deep Lineage Diversification of the Red Alga Chondrus Ocellatus Holmes in the Northwest Pacific. Mol Ecol. 2015;24(19):5020-33. PubMed PMID: 26334439.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phylogeographic structure and deep lineage diversification of the red alga Chondrus ocellatus Holmes in the Northwest Pacific. AU - Hu,Zi-Min, AU - Li,Jing-Jing, AU - Sun,Zhong-Min, AU - Oak,Jung-Hyun, AU - Zhang,Jie, AU - Fresia,Pablo, AU - Grant,W Stewart, AU - Duan,De-Lin, PY - 2015/01/08/received PY - 2015/08/28/revised PY - 2015/08/31/accepted PY - 2015/9/4/entrez PY - 2015/9/4/pubmed PY - 2016/1/9/medline KW - Chondrus ocellatus KW - Northwest Pacific KW - biogeographic isolation KW - cryptic diversity KW - paleoclimate KW - phylogeography SP - 5020 EP - 33 JF - Molecular ecology JO - Mol Ecol VL - 24 IS - 19 N2 - A major goal of phylogeographic analysis using molecular markers is to understand the ecological and historical variables that influence genetic diversity within a species. Here, we used sequences of the mitochondrial Cox1 gene and nuclear internal transcribed spacer to reconstruct its phylogeography and demographic history of the intertidal red seaweed Chondrus ocellatus over most of its geographical range in the Northwest Pacific. We found three deeply separated lineages A, B and C, which diverged from one another in the early Pliocene-late Miocene (c. 4.5-7.7 Ma). The remarkably deep divergences, both within and between lineages, appear to have resulted from ancient isolations, accelerated by random drift and limited genetic exchange between regions. The disjunct distributions of lineages A and C along the coasts of Japan may reflect divergence during isolation in scattered refugia. The distribution of lineage B, from the South China Sea to the Korean Peninsula, appears to reflect postglacial recolonizations of coastal habitats. These three lineages do not coincide with the three documented morphological formae in C. ocellatus, suggesting that additional cryptic species may exist in this taxon. Our study illustrates the interaction of environmental variability and demographic processes in producing lineage diversification in an intertidal seaweed and highlights the importance of phylogeographic approaches for discovering cryptic marine biodiversity. SN - 1365-294X UR - https://www.unboundmedicine.com/medline/citation/26334439/Phylogeographic_structure_and_deep_lineage_diversification_of_the_red_alga_Chondrus_ocellatus_Holmes_in_the_Northwest_Pacific_ DB - PRIME DP - Unbound Medicine ER -