Resumen
The identification of closely related species with partially overlapping distributions is fundamental for effective conservation. Here we analyzed 28 sequenced microsatellites, mtDNA sequences, and morphological data, to describe the connectivity, genetic relationship, and distribution of Percilia gillissi and Percilia irwini, two endangered species inhabiting two contiguous watersheds in Chile (Itata and Biobío). We provide evidence of discordance in the spatial distribution of the two genomes (nuclear and mitochondrial). Three large clusters were identified with microsatellites, with one cluster straddling both watersheds. Three clusters were also evident in mtDNA with one cluster straddling both watersheds and the other two restricted to the Itata watershed’s northern reaches. Analyses of both microsatellite and mtDNA identified P. gillissi in the Itata watershed northern reaches and P. irwini in the Biobío watershed. Fish were detected in the Itata watershed that carried mtDNA characteristic of P. irwini but nuclear microsatellite profiles of P. gillissi suggesting an incomplete reproductive barrier between the species and connectivity between the watersheds. Additionally, fish were identified in the Itata northern reaches carrying mtDNA haplotypes sufficiently distinct from those of P. gillissi and P. irwini to suggest the existence of higher mtDNA diversity within P. gillissi than previously recognized. Finally, there was limited support for taxonomical classification based on morphological and meristic traits in this region.
Idioma original | English |
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Páginas (desde-hasta) | 23-33 |
Número de páginas | 11 |
Publicación | Conservation Genetics |
Volumen | 23 |
N.º | 1 |
DOI | |
Estado | Published - feb. 2022 |
Nota bibliográfica
Funding Information:This research was supported by a FONDECYT Grant 1150154 to EH and collaborators and an NSERC Discovery Grant to DER. FVA was supported by Beca CONICYT Nacional Folio 21160882 and a Canada Department of Foreign Affairs, Trade and Development (DFATD) Emerging Leaders of Americas Program (ELAP) scholarship.
Funding Information:
We thank three anonymous reviewers for their insightful comments that improved the clarity and quality of this manuscript. FVA thanks Sarah Salisbury and Ivan Vera-Escalona in the Ruzzante lab for feedback and comments on earlier versions of the manuscript. The research was supported by a FONDECYT Grant 1150154 to EH and collaborators and an NSERC Discovery Grant to DER. FV-A was supported by Beca CONICYT Nacional Folio 21160882 and a Canada Department of Foreign Affairs, Trade and Development (DFATD) Emerginf Leaders of Amerricas Program (ELAP) scholarship.
Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Nature B.V.
ASJC Scopus Subject Areas
- Ecology, Evolution, Behavior and Systematics
- Genetics