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Phylogeography study of Ammodytes personatus in Northwestern Pacific: Pleistocene isolation, temperature and current conducted secondary contact.

Han Z, Yanagimoto T, Zhang Y, Gao T - PLoS ONE (2012)

Bottom Line: However, significant genetic structure is also detected in the Sea of Japan, contracting expected homogenization hypothesis in Tsushima Current.The haplotype frequency of lineages in both sides of Japanese Island and significant genetic structure between north and south groups revealed that the distribution of lineage B and north group were highly limited by the annual sea temperature.Lack of genetic structure in the south group and north group populations indicated that ocean currents within groups facilitated the dispersal of A. personatus.

View Article: PubMed Central - PubMed

Affiliation: Fishery College, Zhejiang Ocean University, Zhoushan, Zhejiang, China.

ABSTRACT
To assess the role of historical process and contemporary factors in shaping population structures in Northwestern Pacific, mitochondrial control region sequences were analyzed to characterize the phylogeography and population structure of the Japanese sand lance Ammodytes personatus. A total of 429 individuals sampled from 17 populations through the species' range are sequenced. Two distinct lineages are detected, which might have been divergent in the Sea of Japan and Pacific costal waters of Japanese Island, during the low sea level. Significant genetic structure is revealed between the Kuroshio and Oyashio Currents. However, significant genetic structure is also detected in the Sea of Japan, contracting expected homogenization hypothesis in Tsushima Current. The haplotype frequency of lineages in both sides of Japanese Island and significant genetic structure between north and south groups revealed that the distribution of lineage B and north group were highly limited by the annual sea temperature. The lack of lineage B in Qingdao population with low sea temperature reflects the sea temperature barrier. Lack of genetic structure in the south group and north group populations indicated that ocean currents within groups facilitated the dispersal of A. personatus.

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Neighbor-joining tree of transversion haplotypes constructed using Tamura and Nei distances.
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pone-0037425-g001: Neighbor-joining tree of transversion haplotypes constructed using Tamura and Nei distances.

Mentions: Phylogenetic analysis of haplotypes revealed two distinct lineages (Lineage A and B) in either analysis of NJ tree and haplotype network (Fig. 1; Fig. 2). Net average genetic distance between lineages was 3.63%. Applying sequence divergence rate in control region, the divergence of lineage A and B occurred about 453,000 years ago. Lineage A contained 299 individuals, with haplotype diversity of 0.999±0.001. This lineage had 118 polymorphic sites and nucleotide diversity was 0.0138±0.0072. Lineage B included 130 individuals, with haplotype diversity of 0.999±0.001 and nucleotide diversity of 0.0224±0.0113. The average pairwise divergences between individuals, within each of the lineages (±SE) were 7.33±3.44, 11.71±5.34, respectively (Table 1).


Phylogeography study of Ammodytes personatus in Northwestern Pacific: Pleistocene isolation, temperature and current conducted secondary contact.

Han Z, Yanagimoto T, Zhang Y, Gao T - PLoS ONE (2012)

Neighbor-joining tree of transversion haplotypes constructed using Tamura and Nei distances.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3368699&req=5

pone-0037425-g001: Neighbor-joining tree of transversion haplotypes constructed using Tamura and Nei distances.
Mentions: Phylogenetic analysis of haplotypes revealed two distinct lineages (Lineage A and B) in either analysis of NJ tree and haplotype network (Fig. 1; Fig. 2). Net average genetic distance between lineages was 3.63%. Applying sequence divergence rate in control region, the divergence of lineage A and B occurred about 453,000 years ago. Lineage A contained 299 individuals, with haplotype diversity of 0.999±0.001. This lineage had 118 polymorphic sites and nucleotide diversity was 0.0138±0.0072. Lineage B included 130 individuals, with haplotype diversity of 0.999±0.001 and nucleotide diversity of 0.0224±0.0113. The average pairwise divergences between individuals, within each of the lineages (±SE) were 7.33±3.44, 11.71±5.34, respectively (Table 1).

Bottom Line: However, significant genetic structure is also detected in the Sea of Japan, contracting expected homogenization hypothesis in Tsushima Current.The haplotype frequency of lineages in both sides of Japanese Island and significant genetic structure between north and south groups revealed that the distribution of lineage B and north group were highly limited by the annual sea temperature.Lack of genetic structure in the south group and north group populations indicated that ocean currents within groups facilitated the dispersal of A. personatus.

View Article: PubMed Central - PubMed

Affiliation: Fishery College, Zhejiang Ocean University, Zhoushan, Zhejiang, China.

ABSTRACT
To assess the role of historical process and contemporary factors in shaping population structures in Northwestern Pacific, mitochondrial control region sequences were analyzed to characterize the phylogeography and population structure of the Japanese sand lance Ammodytes personatus. A total of 429 individuals sampled from 17 populations through the species' range are sequenced. Two distinct lineages are detected, which might have been divergent in the Sea of Japan and Pacific costal waters of Japanese Island, during the low sea level. Significant genetic structure is revealed between the Kuroshio and Oyashio Currents. However, significant genetic structure is also detected in the Sea of Japan, contracting expected homogenization hypothesis in Tsushima Current. The haplotype frequency of lineages in both sides of Japanese Island and significant genetic structure between north and south groups revealed that the distribution of lineage B and north group were highly limited by the annual sea temperature. The lack of lineage B in Qingdao population with low sea temperature reflects the sea temperature barrier. Lack of genetic structure in the south group and north group populations indicated that ocean currents within groups facilitated the dispersal of A. personatus.

Show MeSH