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Genomic data support the taxonomic validity of Middle American livebearers Poeciliopsis gracilis and Poeciliopsis pleurospilus (Cyprinodontiformes: Poeciliidae)
- Source :
- PLoS ONE, PLoS ONE, Vol 17, Iss 1, p e0262687 (2022), PLoS ONE, Vol 17, Iss 1 (2022)
- Publication Year :
- 2022
- Publisher :
- Public Library of Science, 2022.
-
Abstract
- Poeciliopsis (Cyprinodontiformes: Poeciliidae) is a genus comprised of 25 species of freshwater fishes. Several well-known taxonomic uncertainties exist within the genus, especially in relation to the taxonomic status of Poeciliopsis pleurospilus and P. gracilis. However, to date, no studies have been conducted to specifically address the taxonomic status of these two species. The goal of this study was to examine the taxonomic validity of P. pleurospilus and P. gracilis using genomic data (ddRADseq) in phylogenetic, population genetic, and species delimitation frameworks. Multiple analyses support the recognition of both taxa as distinct species and also permits us to revise their respective distributions. A species delimitation analysis indicates that P. pleurospilus and P. gracilis are distinct species, each of which consists of two distinct lineages that are geographically structured. Phylogenetic and population genetic analyses provide clear evidence that individuals of P. gracilis are distributed north and west of the Isthmus of Tehuantepec in both Pacific and Atlantic river systems in Mexico, whereas individuals of P. pleurospilus are distributed in both Atlantic and Pacific river systems south and east of the Isthmus of Tehuantepec, from southern Mexico to Honduras.
- Subjects :
- Computer and Information Sciences
Science
Marine and Aquatic Sciences
Animal Phylogenetics
Polymorphism, Single Nucleotide
Geographical locations
Cyprinodontiformes
Rivers
Genetics
Animals
Evolutionary Systematics
Mexico
Phylogeny
Taxonomy
Data Management
Evolutionary Biology
Multidisciplinary
Population Biology
Ecology and Environmental Sciences
Organisms
Biology and Life Sciences
Eukaryota
Aquatic Environments
Phylogenetic Analysis
DNA
Genomics
Bodies of Water
Phylogenetics
Freshwater Fish
Fish
Genetics, Population
North America
Vertebrates
Earth Sciences
Medicine
People and places
Zoology
Population Genetics
Research Article
Freshwater Environments
Subjects
Details
- Language :
- English
- ISSN :
- 19326203
- Volume :
- 17
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- PLoS ONE
- Accession number :
- edsair.doi.dedup.....6f99d36e2c43cf4c4afba3dd4b225863