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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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The relationship between the frequency of lineage B and the annual temperature among 17 populations.
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pone-0037425-g004: The relationship between the frequency of lineage B and the annual temperature among 17 populations.

Mentions: There were obviously geographical differences in haplotype frequencies of the two lineages (Fig 3; Fig 4). Lineage A has a more extensive geographical distribution and is present in all 17 populations from Cape Soya to Qingdao. It dominates the south group of A. personatus but the frequency declined steadily along the Pacific coast and Sea of Japan coast from south to north. Lineage B was sympatric with lineage A in ten populations, included five populations in south group and all populations in north group, and the frequency of lineage B declined along the coast from Cape Soya to Kashima. The annual sea temperature in lineage A and lineage B varied from 11.26°C to 19.99°C and 11.26°C to 16.41°C, respectively (Table 2). Compared with the haplotype frequency of 17 populations, the relatively stable haplotype frequency was observed in southern populations in south group, including Qingdao population from Yellow Sea (100% for lineage A; absent for lineage B) and populations in north group (17.1%–43.5% for Lineage A, 56.5%–82.9% for lineage B) (Fig 3). The median region between two groups included transition zone of currents in Pacific Ocean (Kashima, Otsuko and Sendai Bay) and Sea of Japan coast off Aomori (Hachinohe and Odose). Two lineages were detected in all four populations in transition zone between Kuroshio Current and Oyashio Current (36°–38°N). The frequency of lineage A significantly declined along the coast from Kashima (93.3%) to Sendai Bay (33.3%) and the lineage B showed the opposite trend. Northward shift of latitude in median region was observed in Sea of Japan. In Sea of Japan coast off Aomori (40°–41°N), the frequency of lineage A declined along the Japan Sea coast from Odose (93.3%) to Ishikari Bay (37.1%), this was similar trend like the transition zone. In both sides of Japanese Island, the median region shows nearly the same annual sea temperature (14.17°C–16.41°C in transition zone; 15.76°C–16.78°C in Sea of Japan). The plot figure based on the frequency of lineage B and annual sea temperature among populations excluding Qingdao showed the obvious separation of the north and south groups (Fig 4). The threshold annual temperature in north group and lineage B were 14.17°C and 16.78°C, respectively.


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)

The relationship between the frequency of lineage B and the annual temperature among 17 populations.
© Copyright Policy
Related In: Results  -  Collection

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

pone-0037425-g004: The relationship between the frequency of lineage B and the annual temperature among 17 populations.
Mentions: There were obviously geographical differences in haplotype frequencies of the two lineages (Fig 3; Fig 4). Lineage A has a more extensive geographical distribution and is present in all 17 populations from Cape Soya to Qingdao. It dominates the south group of A. personatus but the frequency declined steadily along the Pacific coast and Sea of Japan coast from south to north. Lineage B was sympatric with lineage A in ten populations, included five populations in south group and all populations in north group, and the frequency of lineage B declined along the coast from Cape Soya to Kashima. The annual sea temperature in lineage A and lineage B varied from 11.26°C to 19.99°C and 11.26°C to 16.41°C, respectively (Table 2). Compared with the haplotype frequency of 17 populations, the relatively stable haplotype frequency was observed in southern populations in south group, including Qingdao population from Yellow Sea (100% for lineage A; absent for lineage B) and populations in north group (17.1%–43.5% for Lineage A, 56.5%–82.9% for lineage B) (Fig 3). The median region between two groups included transition zone of currents in Pacific Ocean (Kashima, Otsuko and Sendai Bay) and Sea of Japan coast off Aomori (Hachinohe and Odose). Two lineages were detected in all four populations in transition zone between Kuroshio Current and Oyashio Current (36°–38°N). The frequency of lineage A significantly declined along the coast from Kashima (93.3%) to Sendai Bay (33.3%) and the lineage B showed the opposite trend. Northward shift of latitude in median region was observed in Sea of Japan. In Sea of Japan coast off Aomori (40°–41°N), the frequency of lineage A declined along the Japan Sea coast from Odose (93.3%) to Ishikari Bay (37.1%), this was similar trend like the transition zone. In both sides of Japanese Island, the median region shows nearly the same annual sea temperature (14.17°C–16.41°C in transition zone; 15.76°C–16.78°C in Sea of Japan). The plot figure based on the frequency of lineage B and annual sea temperature among populations excluding Qingdao showed the obvious separation of the north and south groups (Fig 4). The threshold annual temperature in north group and lineage B were 14.17°C and 16.78°C, respectively.

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