The complex evolutionary history and phylogeography of Caridina typus (Crustacea: Decapoda): long-distance dispersal and cryptic allopatric species

Abstract The evolutionary history of the old, diverse freshwater shrimp genus Caridina is still poorly understood, despite its vast distribution – from Africa to Polynesia. Here, we used nuclear and mitochondrial DNA to infer the phylogeographic and evolutionary history of C. typus, which is one of...

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Autores principales:	Samuel C. Bernardes, Almir R. Pepato, Thomas von Rintelen, Kristina von Rintelen, Timothy J. Page, Hendrik Freitag, Mark de Bruyn
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/27fae55132114a0dadd24243ce8f932d
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spelling	oai:doaj.org-article:27fae55132114a0dadd24243ce8f932d2021-12-02T16:07:47ZThe complex evolutionary history and phylogeography of Caridina typus (Crustacea: Decapoda): long-distance dispersal and cryptic allopatric species10.1038/s41598-017-08494-w2045-2322https://doaj.org/article/27fae55132114a0dadd24243ce8f932d2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08494-whttps://doaj.org/toc/2045-2322Abstract The evolutionary history of the old, diverse freshwater shrimp genus Caridina is still poorly understood, despite its vast distribution – from Africa to Polynesia. Here, we used nuclear and mitochondrial DNA to infer the phylogeographic and evolutionary history of C. typus, which is one of only four species distributed across the entire range of the genus. Despite this species’ potential for high levels of gene flow, questions have been raised regarding its phylogeographic structure and taxonomic status. We identified three distinct lineages that likely diverged in the Miocene. Molecular dating and ancestral range reconstructions are congruent with C. typus’ early dispersal to Africa, possibly mediated by the Miocene Indian Ocean Equatorial Jet, followed by back dispersal to Australasia after the Jet’s closure. Furthermore, several different species delimitation methods indicate each lineage represents a distinct (cryptic) species, contradicting current morphospecies delimitation of a single C. typus taxon. The evolutionary history of C. typus lineages is complex, in which ancient oceanic current systems and (currently unrecognised) speciation events preceded secondary sympatry of these cryptic species.Samuel C. BernardesAlmir R. PepatoThomas von RintelenKristina von RintelenTimothy J. PageHendrik FreitagMark de BruynNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Samuel C. Bernardes Almir R. Pepato Thomas von Rintelen Kristina von Rintelen Timothy J. Page Hendrik Freitag Mark de Bruyn The complex evolutionary history and phylogeography of Caridina typus (Crustacea: Decapoda): long-distance dispersal and cryptic allopatric species
description	Abstract The evolutionary history of the old, diverse freshwater shrimp genus Caridina is still poorly understood, despite its vast distribution – from Africa to Polynesia. Here, we used nuclear and mitochondrial DNA to infer the phylogeographic and evolutionary history of C. typus, which is one of only four species distributed across the entire range of the genus. Despite this species’ potential for high levels of gene flow, questions have been raised regarding its phylogeographic structure and taxonomic status. We identified three distinct lineages that likely diverged in the Miocene. Molecular dating and ancestral range reconstructions are congruent with C. typus’ early dispersal to Africa, possibly mediated by the Miocene Indian Ocean Equatorial Jet, followed by back dispersal to Australasia after the Jet’s closure. Furthermore, several different species delimitation methods indicate each lineage represents a distinct (cryptic) species, contradicting current morphospecies delimitation of a single C. typus taxon. The evolutionary history of C. typus lineages is complex, in which ancient oceanic current systems and (currently unrecognised) speciation events preceded secondary sympatry of these cryptic species.
format	article
author	Samuel C. Bernardes Almir R. Pepato Thomas von Rintelen Kristina von Rintelen Timothy J. Page Hendrik Freitag Mark de Bruyn
author_facet	Samuel C. Bernardes Almir R. Pepato Thomas von Rintelen Kristina von Rintelen Timothy J. Page Hendrik Freitag Mark de Bruyn
author_sort	Samuel C. Bernardes
title	The complex evolutionary history and phylogeography of Caridina typus (Crustacea: Decapoda): long-distance dispersal and cryptic allopatric species
title_short	The complex evolutionary history and phylogeography of Caridina typus (Crustacea: Decapoda): long-distance dispersal and cryptic allopatric species
title_full	The complex evolutionary history and phylogeography of Caridina typus (Crustacea: Decapoda): long-distance dispersal and cryptic allopatric species
title_fullStr	The complex evolutionary history and phylogeography of Caridina typus (Crustacea: Decapoda): long-distance dispersal and cryptic allopatric species
title_full_unstemmed	The complex evolutionary history and phylogeography of Caridina typus (Crustacea: Decapoda): long-distance dispersal and cryptic allopatric species
title_sort	complex evolutionary history and phylogeography of caridina typus (crustacea: decapoda): long-distance dispersal and cryptic allopatric species
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/27fae55132114a0dadd24243ce8f932d
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The complex evolutionary history and phylogeography of Caridina typus (Crustacea: Decapoda): long-distance dispersal and cryptic allopatric species

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