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Phylogeography of Baryancistrus xanthellus (Siluriformes: Loricariidae), a rheophilic catfish endemic to the Xingu River basin in eastern Amazonia.

التفاصيل البيبلوغرافية
العنوان: Phylogeography of Baryancistrus xanthellus (Siluriformes: Loricariidae), a rheophilic catfish endemic to the Xingu River basin in eastern Amazonia.
المؤلفون: Magalhães KX; Laboratório de Ictiologia de Altamira, Universidade Federal do Pará, Altamira, Pará, Brazil., Silva RDFD; Laboratório de Genética Aplicada, Instituto de Estudos Costeiros, Universidade Federal do Pará, Bragança, Pará, Brazil., Sawakuchi AO; Instituto de Geociências, Universidade de São Paulo, São Paulo, São Paulo, Brazil., Gonçalves AP; Instituto Nacional de Pesquisa da Amazônia, INPA, Programa de Pós-Graduação em Biologia de Água Doce e Pesca Interior, Manaus, Amazonas, Brazil., Gomes GFE; Laboratório de Genética Aplicada, Instituto de Estudos Costeiros, Universidade Federal do Pará, Bragança, Pará, Brazil., Muriel-Cunha J; Instituto de Estudos Costeiros, Campus Bragança, Universidade Federal do Pará, Bragança, Pará, Brazil., Sabaj MH; Department of Ichthyology, The Academy of Natural Sciences of Drexel University, Philadelphia, PA, United States of America., Sousa LM; Laboratório de Ictiologia de Altamira, Universidade Federal do Pará, Altamira, Pará, Brazil.
المصدر: PloS one [PLoS One] 2021 Aug 27; Vol. 16 (8), pp. e0256677. Date of Electronic Publication: 2021 Aug 27 (Print Publication: 2021).
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE
أسماء مطبوعة: Original Publication: San Francisco, CA : Public Library of Science
مواضيع طبية MeSH: Phylogeography*, Catfishes/*genetics , Genetic Variation/*genetics , Ribosomal Protein L3/*genetics, Animals ; Brazil ; Gene Flow/genetics ; Genes, Mitochondrial/genetics ; Haplotypes
مستخلص: Baryancistrus xanthellus (Loricariidae) is an endemic fish species from the Xingu River basin with its life history in the shallow rapid waters flowing over bedrock substrates. In order to investigate the genetic diversity and demographic history of B. xanthellus we analyzed sequence data for one mitochondrial gene (Cyt b) and introns 1 and 5 of nuclear genes Prolactin (Prl) and Ribosomal Protein L3 (RPL3). The analyses contain 358 specimens of B. xanthellus from 39 localities distributed throughout its range. The number of genetically diverged groups was estimated using Bayesian inference on Cyt b haplotypes. Haplotype networks, AMOVA and pairwise fixation index was used to evaluate population structure and gene flow. Historical demography was inferred through neutrality tests and the Extended Bayesian Skyline Plot (EBSP) method. Five longitudinally distributed Cyt b haplogroups for B. xanthellus were identified in the Xingu River and its major tributaries, the Bacajá and Iriri. The demographic analysis suggests that rapids habitats have expanded in the Iriri and Lower Xingu rivers since 200 ka (thousand years) ago. This expansion is possibly related to an increase in water discharge as a consequence of higher rainfall across eastern Amazonia. Conversely, this climate shift also would have promoted zones of sediment trapping and reduction of rocky habitats in the Xingu River channel upstream of the Iriri River mouth. Populations of B. xanthellus showed strong genetic structure along the free-flowing river channels of the Xingu and its major tributaries, the Bacajá and Iriri. The recent impoundment of the Middle Xingu channel for the Belo Monte hydroelectric dam may isolate populations at the downstream limit of the species distribution. Therefore, future conservation plans must consider the genetic diversity of B. xanthellus throughout its range.
Competing Interests: The authors have declared that no competing interests exist.
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المشرفين على المادة: 0 (Ribosomal Protein L3)
تواريخ الأحداث: Date Created: 20210827 Date Completed: 20211209 Latest Revision: 20211214
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC8396747
DOI: 10.1371/journal.pone.0256677
PMID: 34449827
قاعدة البيانات: MEDLINE
الوصف
تدمد:1932-6203
DOI:10.1371/journal.pone.0256677