Hidden diversity in Prochilodus nigricans: A new genetic lineage within the Tapajós River basin

Autor: Pedro M. Galetti, Ueslei Lopes, Patrícia Domingues de Freitas
Jazyk: angličtina
Rok vydání: 2020
Předmět:
0106 biological sciences
0301 basic medicine
Heredity
Species Delimitation
Speciation
Drainage basin
Biodiversity
Marine and Aquatic Sciences
01 natural sciences
Phylogeny
Data Management
Multidisciplinary
geography.geographical_feature_category
biology
Geography
Ecology
Amazon rainforest
Eukaryota
Phylogenetic Analysis
Freshwater Fish
Phylogenetics
Phylogeography
Genetic Mapping
Biogeography
Vertebrates
Medicine
Taxonomy (biology)
Characiformes
Brazil
Research Article
Freshwater Environments
Computer and Information Sciences
Evolutionary Processes
Science
010603 evolutionary biology
03 medical and health sciences
Rivers
Genetics
Animals
Evolutionary Systematics
Endemism
Taxonomy
geography
Evolutionary Biology
Population Biology
Ecology and Environmental Sciences
Organisms
Biology and Life Sciences
Aquatic Environments
Bayes Theorem
Bodies of Water
biology.organism_classification
030104 developmental biology
Fish
Haplotypes
Prochilodus nigricans
Earth Sciences
Zoology
Population Genetics
Zdroj: PLoS ONE, Vol 15, Iss 8, p e0237916 (2020)
PLoS ONE
ISSN: 1932-6203
Popis: Highly spread through the Amazon River basin, Prochilodus nigricans have had its taxonomic validity recently questioned, when genetic differences between Western and Eastern Amazon populations from the Brazilian shield were detected. This area has been seeing as a region of high ichthyofaunal diversity and endemism, in which the hybrid origin of the Tapajos River basin has been raised. In this paper, we report a new molecular lineage within P. nigricans of Tapajos River, highlighting this region still hides taxonomically significant diversity. Haplotype networks were reconstructed using the mitochondrial COI and ATP6/8 markers, which were also used to calculate genetic distances among clusters. We additionally conducted a delimiting species approach by employing a Generalized Mixed Yule-Coalescent model (GMYC) with COI sequences produced here, and previous ones published for individuals sampled across the Amazon River basin. In addition to the genetic differentiation within P. nigricans, our findings favor the hypothesis of hybrid origin of the Tapajos River basin and reaffirm the importance of studies aiming to investigate hidden diversity to address taxonomic and biogeographic issues, that certainly benefit better biodiversity conservation actions.
Databáze: OpenAIRE
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