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Maciaszek R, Świderek W, Prati S, Huang CY, Karaban K, Kaliszewicz A, Jabłońska A. Epibiont Cohabitation in Freshwater Shrimp Neocaridina davidi with the Description of Two Species New to Science, Cladogonium kumaki sp. nov. and Monodiscus kumaki sp. nov., and Redescription of Scutariella japonica and Holtodrilus truncatus. Animals (Basel) 2023; 13:ani13101616. [PMID: 37238046 DOI: 10.3390/ani13101616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/28/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
This contribution presents the occurrence of epibiotic species associated with Neocaridina davidi shrimp collected in the wild, aquaculture ponds, and aquaria. A total of 900 shrimp are imported from Taiwan, three-quarters of which host at least one of the recorded epibionts. Among those epibionts, two species new to science are discovered, Cladogonium kumaki sp. nov. and Monodiscus kumaki sp. nov., while the other two, Holtodrilus truncatus and Scutariella japonica, are redescribed. The largest number of epibionts is found in shrimp collected from aquaculture ponds and the lowest in individuals from aquaria. Epibiont occurrence differs across designated microhabitats. The epibionts may be introduced alongside their host outside their native range, and their presence may affect shrimp breeding rates. Thus, more control over them should be provided. Their spread can be limited by removal from the host during molting or manually, as well as by using interspecies interactions.
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Affiliation(s)
- Rafał Maciaszek
- Department of Animal Genetics and Conservation, Institute of Animal Sciences, Warsaw University of Life Sciences, ul. Ciszewskiego 8, 02-786 Warsaw, Poland
| | - Wiesław Świderek
- Department of Animal Genetics and Conservation, Institute of Animal Sciences, Warsaw University of Life Sciences, ul. Ciszewskiego 8, 02-786 Warsaw, Poland
| | - Sebastian Prati
- Department of Aquatic Ecology, University of Duisburg-Essen, Universitätstr. 5, 45141 Essen, Germany
| | - Chih-Yang Huang
- Department of Aquaculture, National Taiwan Ocean University, 2 Beining Road, Jhongjheng, Keelung 202301, Taiwan
| | - Kamil Karaban
- Institute of Biological Sciences, Cardinal Stefan Wyszynski University in Warsaw, ul. Wóycickiego 1/3, 01-938 Warsaw, Poland
| | - Anita Kaliszewicz
- Institute of Biological Sciences, Cardinal Stefan Wyszynski University in Warsaw, ul. Wóycickiego 1/3, 01-938 Warsaw, Poland
| | - Aleksandra Jabłońska
- Department of Invertebrate Zoology and Hydrobiology, University of Lodz, ul. Banacha 12/16, 90-237 Łodź, Poland
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Sun XY, Yuan JJ, Dong ZE. Small population of the largest water strider after the late Pleistocene and the implications for its conservation. Gene 2023; 859:147219. [PMID: 36702394 DOI: 10.1016/j.gene.2023.147219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 01/10/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023]
Abstract
Climate oscillation and its synergistic impacts on habitat fragmentation have been identified as threatening the survival of some extant species. However, the mechanisms by which semi-aquatic insects impacted by such events remain poorly understood. Herein, we studied the largest water strider in the world, Gigantometra gigas, to explore the effect of these two factors on its evolutionary history. The sequences of mitogenomic and nrDNA cluster were utilized to reconstruct phylogenetic relationship among G. gigas populations and its demographic history. Mitochondrial genes were separately reconstructed topologies of that populations and detected remarkable differences. We found that G. gigas populations conform to the isolation-by-distance model, and decline occurred at about 120 ka, which was probably influenced by the climate change during the late Pleistocene and eventually maintained a small effective population size (Ne) around 85,717. The populations in Guangdong Province of China are worthy of note in that they exhibit low genetic diversity, a small Ne around 18,899 individuals, and occupy an area with little suitable future habitat for G. gigas. This work recommends that conservation efforts are implemented to ensure the long-term survival of small G. gigas populations, and notes that further evaluation of their extinction risk under the impacts of human activities is required.
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Affiliation(s)
- Xiao-Ya Sun
- Tianjin Key Laboratory of Conservation and Utilization of Animal Diversity, Tianjin Normal University, Tianjin 300387, China; Tianjin Key Laboratory of Animal and Plant Resistance, Tianjin Normal University, Tianjin 300387, China.
| | - Juan-Juan Yuan
- College of Life Sciences, Zaozhuang University, Shandong 277160, China
| | - Zhuo-Er Dong
- Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
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3
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Huang D, Li S, Lu Y, Sha M, Li J. Effects of diflubenzuron on shrimp (Neocaridina palmata) in freshwater systems dominated by submerged plant (Ceratophyllum demersum). CHEMOSPHERE 2023; 313:137567. [PMID: 36529168 DOI: 10.1016/j.chemosphere.2022.137567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/06/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
Diflubenzuron (DFB) is a benzoylbenzourea insect growth regulator widely used in agriculture, horticulture, and vector control. Therefore, it can easily pollute water bodies and cause harm to aquatic life and ecosystems. To evaluate the impact of DFB on atyid shrimp Neocaridina palmate, the insecticide was applied, at 0, 0.74, 2.222, 6.667, 20, and 60 μg L-1, to indoor systems dominated by submerged plant Ceratophyllum demersum. The highest no observed effect concentration and the lowest observed effect concentration was determined to be 0.167 and 0.536 μg L-1, respectively, as it was counted with either activity or immune-reactive content of chitobiase. Subcellular indices were more sensitive, with a lowest observed effect concentration below 0.107 μg L-1. Principal response curves (PRC) and principal component analysis (PCA) showed that DFB reduced the biomass of C. demersum and the content of chlorophyll-a and phycocyanin in the media. The biomass of periphyton were promoted at the high concentrations. According to the PRC and PCA, DFB reduced the bacterial population related to photoautotrophy, sulphur reduction, and sulphur oxidation and it promoted those related to photoheterotrophy, nitrate reduction, nitrate denitrification, and nitrogen fixation. Besides, DFB reduced fungi related to denitrification. PRC and PCA showed that DFB had a negative impact on pH and dissolved oxygen levels and a positive impact on NH4-N, NO2-N, PO4-P, and conductivity, suggesting the deterioration in quality of water. This study provided useful information for understanding the ecotoxicological effects of DFB at population and community levels.
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Affiliation(s)
- Daoshuai Huang
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Shaonan Li
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China.
| | - Yu Lu
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Meng Sha
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Jiaxin Li
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
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4
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Onuki K, Fuke Y. Rediscovery of a native freshwater shrimp, Neocaridina denticulata, and expansion of an invasive species in and around Lake Biwa, Japan: genetic and morphological approach. CONSERV GENET 2022. [DOI: 10.1007/s10592-022-01467-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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5
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Kang B, Hsu KC, Wu JH, Chiu YW, Lin HD, Ju YM. Population genetic diversity and structure of Rhinogobius candidianus (Gobiidae) in Taiwan: Translocation and release. Ecol Evol 2022; 12:e9154. [PMID: 35979520 PMCID: PMC9366559 DOI: 10.1002/ece3.9154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 06/17/2022] [Accepted: 07/08/2022] [Indexed: 11/12/2022] Open
Abstract
Rhinogobius candidianus is a freshwater goby distributed in north, northwest, west, and south Taiwan, but this species has been introduced to east Taiwan and became dominant. To investigate its native population genetic diversity and structure and evaluate the sources and diversity of translocated populations, the mitochondrial DNA control region and cytochrome b gene (1981 bp) from 220 specimens were analyzed. These results indicated that (1) the east populations originated from two sources in west Taiwan; (2) translocated populations exist in east Taiwan and south Taiwan; (3) many populations have likely been moved secondarily by human intervention; (4) the effective size of the populations had declined greatly; (5) within the native populations, the ancestral populations colonized Taiwan during the land bridge phase in the Pleistocene through north Taiwan; (6) the landform changes in Taiwan shaped the population structure; and (7) the landforms of the coastline during glaciation also shaped the native range. The low-level genetic diversity, high population differentiation, and population decline greatly suggest the need for resource management and conservation interventions. Four clades (α-δ) should be managed as four distinct evolutionarily significant units, while the translocated populations should be managed as separate management units. Moreover, the translocated populations in east Taiwan should be evaluated and monitored carefully.
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Affiliation(s)
- Bin Kang
- The Key Laboratory of Mariculture (Ocean University of China) Ministry of Education Qingdao China
| | - Kui-Ching Hsu
- College of Fisheries Guangdong Ocean University Zhanjiang China
| | - Jui-Hsien Wu
- Eastern Marine Biology Research Center of Fisheries Research Institute Council of Agriculture Taitung Taiwan
| | - Yuh-Wen Chiu
- Department of Biological Resources National Chiayi University Chiayi Taiwan
| | - Hung-Du Lin
- The Affiliated School of National Tainan First Senior High School Tainan Taiwan
| | - Yu-Min Ju
- National Museum of Marine Biology and Aquarium Pingtung Taiwan.,Department of Marine Biotechnology and Resources National Sun Yat-sen University Kaohsiung Taiwan
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Wang J, Hsu KC, Chen YH, Zhao J, Tang WQ, Liu D, Yang JQ, Lin HD. Phylogeography of Tridentiger bifasciatus (Gobiidae) in the Northwestern Pacific. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.935251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The shimofuri goby (Tridentiger bifasciatus) is native to marine, brackish, and fresh waters along the coasts of the northwest Pacific. Our study examined the population genetic structure, diversity, and demography of T. bifasciatus in the China Seas, including the Yellow Sea, East China Sea, and South China Sea, using the sequences of mitochondrial DNA [mtDNA cytochrome b (cyt b) gene and d-loop region] and nuclear DNA [nuDNA ryanodine receptor 3 (Ryr3) gene]. The mtDNA dataset revealed a significant population differentiation, but the nuDNA dataset displayed the absence of genetic differentiation. The discordance between these two datasets was accounted for by population admixture, selection, and incomplete lineage sorting. Although the mtDNA and nuDNA displayed a discordant population structure, these genetic markers revealed the same population history: (1) the populations retreated into two refugia during glaciations and (2) the populations declined recently. Our study revealed that after glaciations, the re-flooding in Taiwan Strait did not shape the migrations of the southern lineage from the South China Sea to the East China Sea, and displayed that two mtDNA lineages have diverged before they migrated southward during glaciations. These results offer important resources for the further study of conservation genetics.
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Yi MR, Hsu KC, Gu S, He XB, Luo ZS, Lin HD, Yan YR. Complete mitogenomes of four Trichiurus species: A taxonomic review of the T.lepturus species complex. Zookeys 2022; 1084:1-26. [PMID: 35173516 PMCID: PMC8810657 DOI: 10.3897/zookeys.1084.71576] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 12/31/2021] [Indexed: 02/06/2023] Open
Abstract
Four Trichiurus species, T.japonicus, T.lepturus, T.nanhaiensis, and T.brevis, from the coasts of the China Seas, have been identified and their entire mitochondrial genomes (mitogenomes) have been sequenced by next-generation sequencing technology. A comparative analysis of five mitogenomes was conducted, including the mitogenome of T.gangeticus. The mitogenomes contained 16.568-16.840 bp and encoded 36 typical mitochondrial genes (13 protein-coding, 2 ribosomal RNA-coding, and 21 transfer RNA-coding genes) and two typical noncoding control regions. Although tRNAPro is absent from Trichiurus mitogenomes, when compared with the 22 tRNAs reported in other vertebrates, the gene arrangements in the mitogenomes of the studied species are consistent with those in most teleost mitogenomes. The full-length sequences and protein-coding genes (PCGs) in the mitogenomes of the five species had obvious AT biases and negative GC skew values. Our study indicate that the specimens in the Indian Ocean are neither T.lepturus nor T.nanhaiensis but they are T.gangeticus; the Trichiurus species composition in the Indian Ocean is totally different from that in Pacific and Atlantic oceans; there are at least two Trichiurus species in Indian Ocean; and the worldwide systematics and diversity of the genus Trichiurus need to be reviewed.
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Affiliation(s)
- Mu-Rong Yi
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
- Marine Resources Big Data Center of South China Sea, Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088, China
| | - Kui-Ching Hsu
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Sui Gu
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Xiong-Bo He
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zhi-Sen Luo
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Hung-Du Lin
- The Affiliated School of National Tainan First Senior High School, Tainan 701, Taiwan
| | - Yun-Rong Yan
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
- Marine Resources Big Data Center of South China Sea, Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088, China
- Guangdong Provincial Engineering and Technology Research Center of Far Sea Fisheries Management and Fishing of South China Sea, Guangdong Ocean University, Zhanjiang 524088, China
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8
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Wang J, Li C, Chen J, Wang J, Jin J, Jiang S, Yan L, Lin H, Zhao J. Phylogeographic structure of the dwarf snakehead ( Channa gachua) around Gulf of Tonkin: Historical biogeography and pronounced effects of sea-level changes. Ecol Evol 2021; 11:12583-12595. [PMID: 34594522 PMCID: PMC8462176 DOI: 10.1002/ece3.8003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 07/15/2021] [Accepted: 07/21/2021] [Indexed: 11/07/2022] Open
Abstract
Geological events, landscape features, and climate fluctuations have shaped the distribution of genetic diversity and evolutionary history in freshwater fish, but little attention has been paid to that around the Gulf of Tonkin; therefore, we investigated the phylogeographic structure of the dwarf snakehead (Channa gachua) on Hainan Island and mainland China, as well as two populations in Vietnam. We attempted to elucidate the origins of freshwater fish in South Hainan by incorporating genetic data from DNA markers on both the mitochondrial cytochrome b gene (cyt b) and the nuclear recombination-activating gene 1 (RAG-1). Mitochondrial phylogenetic analysis identified two major lineages (lineages A and B), which may represent separate species. Divergence data suggested that C. gachua populations diverged between 0.516 and 2.376 myr. The divergence of the two cryptic species is congruent with sea-level rise, which subsequently isolated Hainan from the mainland. During the Pleistocene glaciations, the entire region of the Gulf of Tonkin and the Qiongzhou Strait became part of the coastal plain of the Asian continent, which might have resulted in the current distribution patterns and dispersal routes of C. gachua populations. The formation of three sublineages in lineage A indicated that the Gulf of Tonkin was a geographical barrier between Hainan Island and mainland China but not between Vietnam and Hainan Island. The results of this study may help to elucidate the origins of freshwater fish in South Hainan and the phylogeographic structure of C. gachua.
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Affiliation(s)
- Junjie Wang
- Guangdong Provincial Key Laboratory for Healthy and Safe AquacultureGuangdong Provincial Engineering Technology Research Center for Environmentally‐friendly AquacultureGuangzhou Key Laboratory of Subtropical Biodiversity and BiomonitoringSchool of Life ScienceSouth China Normal UniversityGuangzhouChina
| | - Chao Li
- Guangdong Provincial Key Laboratory for Healthy and Safe AquacultureGuangdong Provincial Engineering Technology Research Center for Environmentally‐friendly AquacultureGuangzhou Key Laboratory of Subtropical Biodiversity and BiomonitoringSchool of Life ScienceSouth China Normal UniversityGuangzhouChina
| | - Jiaqi Chen
- Guangdong Provincial Key Laboratory for Healthy and Safe AquacultureGuangdong Provincial Engineering Technology Research Center for Environmentally‐friendly AquacultureGuangzhou Key Laboratory of Subtropical Biodiversity and BiomonitoringSchool of Life ScienceSouth China Normal UniversityGuangzhouChina
| | - Jujing Wang
- Guangdong Provincial Key Laboratory for Healthy and Safe AquacultureGuangdong Provincial Engineering Technology Research Center for Environmentally‐friendly AquacultureGuangzhou Key Laboratory of Subtropical Biodiversity and BiomonitoringSchool of Life ScienceSouth China Normal UniversityGuangzhouChina
| | - Jinjin Jin
- Guangdong Provincial Key Laboratory for Healthy and Safe AquacultureGuangdong Provincial Engineering Technology Research Center for Environmentally‐friendly AquacultureGuangzhou Key Laboratory of Subtropical Biodiversity and BiomonitoringSchool of Life ScienceSouth China Normal UniversityGuangzhouChina
| | - Shuying Jiang
- Guangdong Provincial Key Laboratory for Healthy and Safe AquacultureGuangdong Provincial Engineering Technology Research Center for Environmentally‐friendly AquacultureGuangzhou Key Laboratory of Subtropical Biodiversity and BiomonitoringSchool of Life ScienceSouth China Normal UniversityGuangzhouChina
| | - Luobin Yan
- Guangdong Provincial Key Laboratory for Healthy and Safe AquacultureGuangdong Provincial Engineering Technology Research Center for Environmentally‐friendly AquacultureGuangzhou Key Laboratory of Subtropical Biodiversity and BiomonitoringSchool of Life ScienceSouth China Normal UniversityGuangzhouChina
| | - Hung‐Du Lin
- The Affiliated School of National Tainan First Senior High SchoolTainanTaiwan
| | - Jun Zhao
- Guangdong Provincial Key Laboratory for Healthy and Safe AquacultureGuangdong Provincial Engineering Technology Research Center for Environmentally‐friendly AquacultureGuangzhou Key Laboratory of Subtropical Biodiversity and BiomonitoringSchool of Life ScienceSouth China Normal UniversityGuangzhouChina
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9
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Genetic Structure and Diversity of the Yellowbelly Threadfin Bream Nemipterus bathybius in the Northern South China Sea. DIVERSITY 2021. [DOI: 10.3390/d13070324] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The genetic structure and demography of the yellowbelly threadfin bream, Nemipterus bathybius, in the northern South China Sea were examined using the mitochondrial DNA cytochrome b gene (1141 bp). High levels of haplotype and nucleotide diversities (0.98 and 5.26 × 10−3, respectively) showed that all populations exhibited a high level of genetic diversity. Analysis of molecular variance (AMOVA), FST statistics, and haplotype networks suggested the absence of significant genetic differentiation along the coast of the northern South China Sea. Although the results suggested that the lack of differentiation within the population structure of N. bathybius was shaped by ocean currents, our results also showed that the Qiongzhou Strait limited their migration between Beibu Gulf and the northern South China Sea. Neutrality tests and mismatch distributions indicated population expansion, but the Bayesian skyline plots and approximate Bayesian computation approaches suggested that the population sizes recently contracted. The diversification of multiple stocks, which were induced by two ocean current systems, contributed to these discordant results. Although these analyses of demographic history revealed no evidence for recent population bottlenecks, the population demography needs to be evaluated further.
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Ju YM, Wu JH, Hsu KC, Chiu YW, Wang WK, Chen CW, Lin HD. Genetic diversity of Rhinogobius delicatus (Perciformes: Gobiidae): origins of the freshwater fish in East Taiwan. Mitochondrial DNA A DNA Mapp Seq Anal 2020; 32:12-19. [PMID: 33170048 DOI: 10.1080/24701394.2020.1844678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Mitochondrial DNA cytochrome b and d-loop sequences (1,984 bp) from 92 specimens of the freshwater goby Rhinogobius delicatus from seven drainages in East Taiwan were identified as two major lineages exhibiting a southern or northern distribution. The existence of low genetic diversity, a pattern of population decline and high population differentiation (F ST=0.711) support the need for the development of management strategies for the conservation of localized populations. The results of a statistical dispersal-vicariance analysis suggested that the ancestral populations of R. delicatus were widely distributed in East Taiwan. Compared with the phylogeographic patterns of the other endemic eastern Taiwan freshwater fishes, Onychostoma alticorpus, Aphyocypris kikuckii and Hemimyzon taitungensis, our study suggests that the freshwater fishes colonized East Taiwan through northeastern and southwestern Taiwan, although the ancestral populations colonized the island before it reached its present shape.
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Affiliation(s)
- Yu-Min Ju
- National Museum of Marine Biology and Aquarium, Pingtung, Taiwan.,Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, Taiwan
| | - Jui-Hsien Wu
- Council of Agriculture, Eastern Marine Biology Research Center of Fisheries Research Institute, Taitung, Taiwan
| | - Kui-Ching Hsu
- College of Fisheries, Guangdong Ocean University, Zhanjiang, China
| | - Yu-Wen Chiu
- Department of Biological Resources, National Chiayi University, Chiayi, Taiwan
| | - Wei-Kuang Wang
- Department of Environmental Engineering and Science, Feng Chia University, Taichung, Taiwan
| | - Chih-Wei Chen
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Hung-Du Lin
- The Affiliated School of National Tainan First Senior High School, Tainan, Taiwan
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11
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Ye Z, Chen D, Yuan J, Zheng C, Yang X, Wang W, Zhang Y, Wang S, Jiang K, Bu W. Are population isolations and declines a threat to island endemic water striders? A lesson from demographic and niche modelling of Metrocoris esakii (Hemiptera: Gerridae). Mol Ecol 2020; 29:4573-4587. [PMID: 33006793 DOI: 10.1111/mec.15669] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 09/10/2020] [Accepted: 09/21/2020] [Indexed: 12/14/2022]
Abstract
Genetic stochasticity and bottlenecking in the course of Pleistocene glaciations have been identified as threatening the survival of local endemics. However, the mechanisms by which local endemic species balance the influences of these two events remain poorly understood. Here, we generated a double-digest restriction site-associated DNA sequencing (ddRAD-seq) data set, mined mitochondrial sequences and constructed ecological niche models for the island endemic water strider Metrocoris esakii (Hemiptera: Gerridae). We found that M. esakii comprised three divergent lineages (i.e., north, central and south) isolated by geographical barriers and generally experienced population declines with the constriction of suitable areas during the Last Glacial Maximum (LGM). Further demographic model testing and stairway plots revealed a history of recent gene flow among the neighbouring lineages and rapid recovery at the end of the LGM, indicating that M. esakii at least had the potential for an adaptive response to population fragmentation and bottlenecking. The northern lineage did not show genetic bottlenecking during the LGM, which was probably due to its large effective population size (Ne ) from migration, which improved its adaptive potential. Relative to the ddRAD-seq data set, the demographic results based on mitochondrial sequences were less conclusive, showing weak differentiation and oversimplified demographic trajectories for the three genetic lineages. Overall, this study provides some degree of optimism for the survival of island endemic water striders from a demographic perspective, but further evaluation of their extinction risk under the impacts of human activities is required.
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Affiliation(s)
- Zhen Ye
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Danyang Chen
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Juanjuan Yuan
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Chenguang Zheng
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Xin Yang
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Wenwu Wang
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Yaoyao Zhang
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Siqi Wang
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Kun Jiang
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Wenjun Bu
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
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12
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Ding XH, Hsu KC, Tang WQ, Liu D, Ju YM, Lin HD, Yang JQ. Genetic diversity and structure of the Chinese lake gudgeon ( Sarcocheilichthys sinensis). Mitochondrial DNA A DNA Mapp Seq Anal 2020; 31:228-237. [PMID: 32723222 DOI: 10.1080/24701394.2020.1779239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Mitochondrial DNA cytochrome b and d-loop sequences (2,137 bp) in 65 specimens of Sarcocheilichthys sinensis from five populations were identified as two lineages (I and II). The pairwise genetic distance between lineages I and II was 1.94%. SAMOVA analyses suggested that the best grouping occurred at three groups, Yangtze, Qiantang and Minjiang Rivers. High haplotype diversity (0.949) and low nucleotide diversity (θ π = 1.067%) were detected. The results of the neutrality tests, mismatch distribution and approximate Bayesian computation (ABC) did not support demographic expansions. The results of phylogenetic analysis, statistical dispersal-vicariance analysis (S-DIVA), ABC, MIGRATE-N and the time to the most recent common ancestor (TMRCA) indicated two colonization routes. First, before the Wuyi Mountains lifted, S. sinensis dispersed from the Yangtze River to the Minjiang River. Second, during glaciation, the continental shelf was exposed, which contributed to the dispersion of populations from the Yangtze River.
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Affiliation(s)
- Xin-Hua Ding
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Education, Shanghai, China.,Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Kui-Ching Hsu
- College of Fisheries, Guangdong Ocean University, Zhanjiang, China
| | - Wen-Qiao Tang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Education, Shanghai, China.,Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Dong Liu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Education, Shanghai, China.,Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Yu-Min Ju
- Department of Biology, National Museum of Marine Biology and Aquarium, Pingtung, Taiwan.,Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, Taiwan
| | - Hung-Du Lin
- Department of Biology, The Affiliated School of National Tainan First Senior High School, Tainan, Taiwan
| | - Jin-Quan Yang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Education, Shanghai, China.,Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution, Shanghai Ocean University, Shanghai, China.,National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
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