Conservation of evolutionary patterns and processes in the Maloti minnow, Pseudobarbus quathlambae (Cyprinidae, Smiliogastrini), a narrow-range stream fish imperiled by water transfer scheme developments in the Lesotho Highlands

dc.contributor.authorSwartz, Ernst R.
dc.contributor.authorBraganca, Pedro H.N.
dc.contributor.authorRall, Johannes L.
dc.contributor.authorKubheka, Skhumbuzo P.
dc.contributor.authorBloomer, Paulette
dc.contributor.authorSkelton, Paul Harvey
dc.contributor.authorChakona, Albert
dc.date.accessioned2023-06-28T06:47:24Z
dc.date.issued2023-01
dc.descriptionDATA AVAILABILITY : All specimens used in this study are housed at the NRF-SAIAB ichthyological collection, which is a national facility and open to the public. Specimens for research can be requested by contacting the institution. All sequences resulting from this study were deposited in GenBank and will be made available following the acceptance of the manuscript.en_US
dc.description.abstractPseudobarbus quathlambae (Barnard, 1938) is a cyprinid minnow with a disjunct distribution divided into tributaries of the Upper Orange River system in the Lesotho Highlands and the Mzimkhulu River system in KwaZulu Natal Province (KZN), South Africa. Recent records in the Mzimkhulu River system extended the species’ geographic range, and this could represent the last remnant population of this species in South Africa. However, its future existence is in doubt, because of continued threats to all the remnant populations by non-native fishes, and more recently by the building of large, interconnected dams as part of the Lesotho Highlands Water Project (LHWP). One of these dams has directly affected the Mohale population in central Lesotho, which was the largest of the seven extant populations. Analysis of mitochondrial control region sequences (534 bp) revealed considerable genetic differentiation (2.3–6.4%) and geographic structuring amongst the remnant populations. The phylogenetic analysis identified three lineages within P. quathlambae: (i) one in KZN, (ii) a second one in eastern Lesotho and (iii) a third one in Mohale, central Lesotho. The deep genetic divergence and pronounced geographic structuring amongst the populations suggests a long period of isolation, indicating they represent unique evolutionary units.en_US
dc.description.departmentGeneticsen_US
dc.description.embargo2023-11-09
dc.description.librarianhj2023en_US
dc.description.sponsorshipThe Lesotho Highlands Developmental Authority Contract 1041 to the South African Institute for Aquatic Biodiversity funded the research. Surveys in KZN were supported by the National Research Foundation (NRF) of South Africa under the Foundational Biodiversity Information Programme: Biodiversity surveys in priority inland areas (FBIP) grants.en_US
dc.description.urihttps://link.springer.com/journal/10750en_US
dc.identifier.citationSwartz, E.R., Bragança, P.H.N., Rall, J.L. et al. Conservation of evolutionary patterns and processes in the Maloti minnow, Pseudobarbus quathlambae (Cyprinidae, Smiliogastrini), a narrow-range stream fish imperiled by water transfer scheme developments in the Lesotho Highlands. Hydrobiologia 850, 301–313 (2023). https://doi.org/10.1007/s10750-022-05069-3.en_US
dc.identifier.issn0018-8158 (print)
dc.identifier.issn1573-5117 (online)
dc.identifier.other10.1007/s10750-022-05069-3
dc.identifier.urihttp://hdl.handle.net/2263/91234
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.rights© The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022. The original publication is available at : http://link.springer.com/journal/10750.en_US
dc.subjectConservationen_US
dc.subjectDrakensbergen_US
dc.subjectEndemismen_US
dc.subjectRedfinen_US
dc.subjectSouthern Africaen_US
dc.subjectSDG-14: Life below wateren_US
dc.subjectLesotho Highlandsen_US
dc.titleConservation of evolutionary patterns and processes in the Maloti minnow, Pseudobarbus quathlambae (Cyprinidae, Smiliogastrini), a narrow-range stream fish imperiled by water transfer scheme developments in the Lesotho Highlandsen_US
dc.typePostprint Articleen_US

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