Assessment of Genetic Diversity of the Salangid, <i>Neosalanx taihuensis</i>, Based on the Mitochondrial COI Gene in Different Chinese River Basins
The salangid <i>Neosalanx taihuensis</i> (Salangidae) is a commercially important economical fish endemic to China and restricted to large freshwater systems with a wide-ranging distribution. This fish species has continuous distribution ranges and a long-introduced aquaculture history i...
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MDPI AG
2022-06-01
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| author | Di-An Fang Miao He Ya-Fei Ren Hui Luo Yan-Feng Zhou Shu-Lun Jiang Yang You |
| author_facet | Di-An Fang Miao He Ya-Fei Ren Hui Luo Yan-Feng Zhou Shu-Lun Jiang Yang You |
| author_sort | Di-An Fang |
| collection | DOAJ |
| description | The salangid <i>Neosalanx taihuensis</i> (Salangidae) is a commercially important economical fish endemic to China and restricted to large freshwater systems with a wide-ranging distribution. This fish species has continuous distribution ranges and a long-introduced aquaculture history in Chinese basins. However, the research on its population genetic differentiation within and between basins is very limited. In this regard, 197 individuals were sampled from 11 populations in the Nenjiang River Basin (A1–A4), Songhua River Basin (B1), Yellow River Basin (C1–C2), Yangtze River Basin (D1), Lanchang River Basin (E1–E2) and Huaihe River Basin (F1). Based on the COI sequence, the <i>N.</i><i>taihuensis</i> population’s genetic difference within and between river basins was investigated. The haplotypes and their frequency distributions were strongly skewed, with most haplotypes (<i>n</i> = 13) represented only in single samples each and thus restricted to a single population. The most common haplotype (H4, 67/197) was found in all individuals. The analysis of molecular variance (AMOVA) revealed a random pattern in the distribution of genetic diversity, which is inconsistent with contemporary hydrological structure. The mismatch between the distribution and neutrality tests supported the evidence of a population expansion, which occurred during the late Pleistocene (0.041–0.051 million years ago). Significant levels of genetic subdivision were detected among populations within basins rather than between the six basins. Population history dynamics showed that <i>N. taihuensis</i> experienced an expansion during the glacial period in the late Pleistocene. Therefore, different populations should be considered as different management units to achieve effective conservation and management purposes. These results have great significance for the evaluation and exploitation of the germplasm resources of <i>N. taihuensis</i>. |
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| spelling | doaj.art-b4fd7232d3244294b688c1e0a0f3a2382023-12-01T21:54:12ZengMDPI AGBiology2079-77372022-06-0111796810.3390/biology11070968Assessment of Genetic Diversity of the Salangid, <i>Neosalanx taihuensis</i>, Based on the Mitochondrial COI Gene in Different Chinese River BasinsDi-An Fang0Miao He1Ya-Fei Ren2Hui Luo3Yan-Feng Zhou4Shu-Lun Jiang5Yang You6Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, ChinaNational Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, ChinaKey Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, ChinaNational Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, ChinaKey Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, ChinaKey Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, ChinaKey Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, ChinaThe salangid <i>Neosalanx taihuensis</i> (Salangidae) is a commercially important economical fish endemic to China and restricted to large freshwater systems with a wide-ranging distribution. This fish species has continuous distribution ranges and a long-introduced aquaculture history in Chinese basins. However, the research on its population genetic differentiation within and between basins is very limited. In this regard, 197 individuals were sampled from 11 populations in the Nenjiang River Basin (A1–A4), Songhua River Basin (B1), Yellow River Basin (C1–C2), Yangtze River Basin (D1), Lanchang River Basin (E1–E2) and Huaihe River Basin (F1). Based on the COI sequence, the <i>N.</i><i>taihuensis</i> population’s genetic difference within and between river basins was investigated. The haplotypes and their frequency distributions were strongly skewed, with most haplotypes (<i>n</i> = 13) represented only in single samples each and thus restricted to a single population. The most common haplotype (H4, 67/197) was found in all individuals. The analysis of molecular variance (AMOVA) revealed a random pattern in the distribution of genetic diversity, which is inconsistent with contemporary hydrological structure. The mismatch between the distribution and neutrality tests supported the evidence of a population expansion, which occurred during the late Pleistocene (0.041–0.051 million years ago). Significant levels of genetic subdivision were detected among populations within basins rather than between the six basins. Population history dynamics showed that <i>N. taihuensis</i> experienced an expansion during the glacial period in the late Pleistocene. Therefore, different populations should be considered as different management units to achieve effective conservation and management purposes. These results have great significance for the evaluation and exploitation of the germplasm resources of <i>N. taihuensis</i>.https://www.mdpi.com/2079-7737/11/7/968aquatic ecologydiversity assessment<i>Neosalanx taihuensis</i>germplasm resourcespopulation genetic structure |
| spellingShingle | Di-An Fang Miao He Ya-Fei Ren Hui Luo Yan-Feng Zhou Shu-Lun Jiang Yang You Assessment of Genetic Diversity of the Salangid, <i>Neosalanx taihuensis</i>, Based on the Mitochondrial COI Gene in Different Chinese River Basins Biology aquatic ecology diversity assessment <i>Neosalanx taihuensis</i> germplasm resources population genetic structure |
| title | Assessment of Genetic Diversity of the Salangid, <i>Neosalanx taihuensis</i>, Based on the Mitochondrial COI Gene in Different Chinese River Basins |
| title_full | Assessment of Genetic Diversity of the Salangid, <i>Neosalanx taihuensis</i>, Based on the Mitochondrial COI Gene in Different Chinese River Basins |
| title_fullStr | Assessment of Genetic Diversity of the Salangid, <i>Neosalanx taihuensis</i>, Based on the Mitochondrial COI Gene in Different Chinese River Basins |
| title_full_unstemmed | Assessment of Genetic Diversity of the Salangid, <i>Neosalanx taihuensis</i>, Based on the Mitochondrial COI Gene in Different Chinese River Basins |
| title_short | Assessment of Genetic Diversity of the Salangid, <i>Neosalanx taihuensis</i>, Based on the Mitochondrial COI Gene in Different Chinese River Basins |
| title_sort | assessment of genetic diversity of the salangid i neosalanx taihuensis i based on the mitochondrial coi gene in different chinese river basins |
| topic | aquatic ecology diversity assessment <i>Neosalanx taihuensis</i> germplasm resources population genetic structure |
| url | https://www.mdpi.com/2079-7737/11/7/968 |
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