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Amphidromous but endemic: Population connectivity of Rhinogobius gigas (Teleostei: Gobioidei)

Rhinogobius gigas is an amphidromous fish endemic to eastern Taiwan. Fishes with the diadromous behavior are expected to have a broader distribution range and higher genetic homogeneity despite that some amphidromous fishes with limited distribution are observed and R. gigas is an additional excepti...

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Autores principales: Liao, Te-Yu, Lu, Pei-Luen, Yu, Yuan-Huan, Huang, Wen-Chien, Shiao, Jen-Chieh, Lin, Hung-Du, Jhuang, Wei-Cheng, Chou, Tak-Kei, Li, Fan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7877787/
https://www.ncbi.nlm.nih.gov/pubmed/33571236
http://dx.doi.org/10.1371/journal.pone.0246406
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author Liao, Te-Yu
Lu, Pei-Luen
Yu, Yuan-Huan
Huang, Wen-Chien
Shiao, Jen-Chieh
Lin, Hung-Du
Jhuang, Wei-Cheng
Chou, Tak-Kei
Li, Fan
author_facet Liao, Te-Yu
Lu, Pei-Luen
Yu, Yuan-Huan
Huang, Wen-Chien
Shiao, Jen-Chieh
Lin, Hung-Du
Jhuang, Wei-Cheng
Chou, Tak-Kei
Li, Fan
author_sort Liao, Te-Yu
collection PubMed
description Rhinogobius gigas is an amphidromous fish endemic to eastern Taiwan. Fishes with the diadromous behavior are expected to have a broader distribution range and higher genetic homogeneity despite that some amphidromous fishes with limited distribution are observed and R. gigas is an additional exception with a limited distribution range. Rhinogobius gigas has been documented to be retained inshore near the river plume with a short pelagic larval duration of 30–40 days, which may account for the endemism of this species. The short marine larval stage of R. gigas may imply a population genetic structure and the aim of the present study is to test whether the population genetic structure is present in R. gigas. To test the population genetic structure, fragments of mitochondrial displacement loop and cytochrome c oxidase subunit I were sequenced to provide molecular inference for genetic structure among populations. Sixty-nine haplotypes were identified among 191 R. gigas from 10 populations of eastern Taiwan and the mean haplotype and nucleotide diversities for all samples were 0.956 and 0.0024, respectively, implying a bottleneck followed by a recent population expansion further supported by Fu’s Fs (-26.6; p < 0.001) and Tajima’s D (-1.5; p = 0.037) values. The phylogenetic analysis revealed lack of genetic structure and the bush-like median joining network without commonly shared haplotypes supports the same scenario. The genetic homogeneity is probably due to the amphidromous life history providing the opportunity for passive larval transportation among the rivers through coastal currents in eastern Taiwan. The endemism to eastern Taiwan may be a consequence of complicated interactions among short pelagic larval duration, interspecific competition and coastal currents.
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spelling pubmed-78777872021-02-19 Amphidromous but endemic: Population connectivity of Rhinogobius gigas (Teleostei: Gobioidei) Liao, Te-Yu Lu, Pei-Luen Yu, Yuan-Huan Huang, Wen-Chien Shiao, Jen-Chieh Lin, Hung-Du Jhuang, Wei-Cheng Chou, Tak-Kei Li, Fan PLoS One Research Article Rhinogobius gigas is an amphidromous fish endemic to eastern Taiwan. Fishes with the diadromous behavior are expected to have a broader distribution range and higher genetic homogeneity despite that some amphidromous fishes with limited distribution are observed and R. gigas is an additional exception with a limited distribution range. Rhinogobius gigas has been documented to be retained inshore near the river plume with a short pelagic larval duration of 30–40 days, which may account for the endemism of this species. The short marine larval stage of R. gigas may imply a population genetic structure and the aim of the present study is to test whether the population genetic structure is present in R. gigas. To test the population genetic structure, fragments of mitochondrial displacement loop and cytochrome c oxidase subunit I were sequenced to provide molecular inference for genetic structure among populations. Sixty-nine haplotypes were identified among 191 R. gigas from 10 populations of eastern Taiwan and the mean haplotype and nucleotide diversities for all samples were 0.956 and 0.0024, respectively, implying a bottleneck followed by a recent population expansion further supported by Fu’s Fs (-26.6; p < 0.001) and Tajima’s D (-1.5; p = 0.037) values. The phylogenetic analysis revealed lack of genetic structure and the bush-like median joining network without commonly shared haplotypes supports the same scenario. The genetic homogeneity is probably due to the amphidromous life history providing the opportunity for passive larval transportation among the rivers through coastal currents in eastern Taiwan. The endemism to eastern Taiwan may be a consequence of complicated interactions among short pelagic larval duration, interspecific competition and coastal currents. Public Library of Science 2021-02-11 /pmc/articles/PMC7877787/ /pubmed/33571236 http://dx.doi.org/10.1371/journal.pone.0246406 Text en © 2021 Liao et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Liao, Te-Yu
Lu, Pei-Luen
Yu, Yuan-Huan
Huang, Wen-Chien
Shiao, Jen-Chieh
Lin, Hung-Du
Jhuang, Wei-Cheng
Chou, Tak-Kei
Li, Fan
Amphidromous but endemic: Population connectivity of Rhinogobius gigas (Teleostei: Gobioidei)
title Amphidromous but endemic: Population connectivity of Rhinogobius gigas (Teleostei: Gobioidei)
title_full Amphidromous but endemic: Population connectivity of Rhinogobius gigas (Teleostei: Gobioidei)
title_fullStr Amphidromous but endemic: Population connectivity of Rhinogobius gigas (Teleostei: Gobioidei)
title_full_unstemmed Amphidromous but endemic: Population connectivity of Rhinogobius gigas (Teleostei: Gobioidei)
title_short Amphidromous but endemic: Population connectivity of Rhinogobius gigas (Teleostei: Gobioidei)
title_sort amphidromous but endemic: population connectivity of rhinogobius gigas (teleostei: gobioidei)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7877787/
https://www.ncbi.nlm.nih.gov/pubmed/33571236
http://dx.doi.org/10.1371/journal.pone.0246406
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