Phylogenetic relationships in southern African Bryde’s whales inferred from mitochondrial DNA : further support for subspecies delineation between the two allopatric populations
Bryde’s whales (Balaenoptera edeni) are medium-sized balaenopterids with tropical and subtropical distribution. There is confusion about the number of species, subspecies and populations of Bryde’s whale found globally. Two eco-types occur off South Africa, the inshore and offshore forms, but with u...
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ftunivpretoria:oai:repository.up.ac.za:2263/66918 2023-05-15T18:19:10+02:00 Phylogenetic relationships in southern African Bryde’s whales inferred from mitochondrial DNA : further support for subspecies delineation between the two allopatric populations Penry, G.S. (Gwenith) Hammond, Philip S. Cockcroft, Victor G. Best, Peter B. Thornton, Meredith Graves, Jeff A. 2018-10-17T05:35:57Z http://hdl.handle.net/2263/66918 https://doi.org/10.1007/s10592-018-1105-4 en eng Springer http://hdl.handle.net/2263/66918 Penry, G.S., Hammond, P.S., Cockcroft, V.G. et al. Phylogenetic relationships in southern African Bryde’s whales inferred from mitochondrial DNA: further support for subspecies delineation between the two allopatric populations. Conservation Genetics (2018). https://doi.org/10.1007/s10592-018-1105-4. NYP. 1566-0621 (print) 1572-9737 (online) doi:10.1007/s10592-018-1105-4 © Springer Nature B.V. 2018. The original publication is available at http://link.springer.comjournal/10592. Balaenoptera brydei Balaenoptera edeni Bryde’s whale MtDNA control region Phylogenetics Southern Africa Postprint Article 2018 ftunivpretoria https://doi.org/10.1007/s10592-018-1105-4 2022-05-31T13:15:23Z Bryde’s whales (Balaenoptera edeni) are medium-sized balaenopterids with tropical and subtropical distribution. There is confusion about the number of species, subspecies and populations of Bryde’s whale found globally. Two eco-types occur off South Africa, the inshore and offshore forms, but with unknown relationship between them. Using the mtDNA control region we investigated the phylogenetic relationship of these populations to each other and other Bryde’s whale populations. Skin, baleen and bone samples were collected from biopsy-sampled individuals, strandings and museum collections. 97 sequences of 674 bp (bp) length were compared with published sequences of Bryde’s whales (n = 6) and two similar species, Omura’s (B. omurai) and sei (B. borealis) whales (n = 3). We found eight haplotypes from the study samples: H1–H4 formed a distinct, sister clade to pelagic populations of Bryde’s whales (B. brydei) from the South Pacific, North Pacific and Eastern Indian Ocean. H5–H8 were included in the pelagic clade. H1–H4 represented samples from within the distributional range of the inshore form. Pairwise comparisons of the percentage of nucleotide differences between sequences revealed that inshore haplotypes differed from published sequences of B. edeni by 4.7–5.5% and from B. brydei by 1.8–2.1%. Ten fixed differences between inshore and offshore sequences supported 100% diagnosability as subspecies. Phylogenetic analyses grouped the South African populations within the Bryde’s-sei whale clade and excluded B. edeni. Our data, combined with morphological and ecological evidence from previous studies, support subspecific classification of both South African forms under B. brydei and complete separation from B. edeni. Logistics and funding to cover fieldwork and laboratory costs were provided by The Centre for Dolphin Studies, Rufford Foundation, Society for Marine Mammalogy, Mammal Research Institute Whale Unit (University of Pretoria), Sea Mammal Research Unit (University of St Andrews) and several international ... Article in Journal/Newspaper Sei Whale University of Pretoria: UPSpace Pacific Indian Conservation Genetics 19 6 1349 1365 |
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Open Polar |
collection |
University of Pretoria: UPSpace |
op_collection_id |
ftunivpretoria |
language |
English |
topic |
Balaenoptera brydei Balaenoptera edeni Bryde’s whale MtDNA control region Phylogenetics Southern Africa |
spellingShingle |
Balaenoptera brydei Balaenoptera edeni Bryde’s whale MtDNA control region Phylogenetics Southern Africa Penry, G.S. (Gwenith) Hammond, Philip S. Cockcroft, Victor G. Best, Peter B. Thornton, Meredith Graves, Jeff A. Phylogenetic relationships in southern African Bryde’s whales inferred from mitochondrial DNA : further support for subspecies delineation between the two allopatric populations |
topic_facet |
Balaenoptera brydei Balaenoptera edeni Bryde’s whale MtDNA control region Phylogenetics Southern Africa |
description |
Bryde’s whales (Balaenoptera edeni) are medium-sized balaenopterids with tropical and subtropical distribution. There is confusion about the number of species, subspecies and populations of Bryde’s whale found globally. Two eco-types occur off South Africa, the inshore and offshore forms, but with unknown relationship between them. Using the mtDNA control region we investigated the phylogenetic relationship of these populations to each other and other Bryde’s whale populations. Skin, baleen and bone samples were collected from biopsy-sampled individuals, strandings and museum collections. 97 sequences of 674 bp (bp) length were compared with published sequences of Bryde’s whales (n = 6) and two similar species, Omura’s (B. omurai) and sei (B. borealis) whales (n = 3). We found eight haplotypes from the study samples: H1–H4 formed a distinct, sister clade to pelagic populations of Bryde’s whales (B. brydei) from the South Pacific, North Pacific and Eastern Indian Ocean. H5–H8 were included in the pelagic clade. H1–H4 represented samples from within the distributional range of the inshore form. Pairwise comparisons of the percentage of nucleotide differences between sequences revealed that inshore haplotypes differed from published sequences of B. edeni by 4.7–5.5% and from B. brydei by 1.8–2.1%. Ten fixed differences between inshore and offshore sequences supported 100% diagnosability as subspecies. Phylogenetic analyses grouped the South African populations within the Bryde’s-sei whale clade and excluded B. edeni. Our data, combined with morphological and ecological evidence from previous studies, support subspecific classification of both South African forms under B. brydei and complete separation from B. edeni. Logistics and funding to cover fieldwork and laboratory costs were provided by The Centre for Dolphin Studies, Rufford Foundation, Society for Marine Mammalogy, Mammal Research Institute Whale Unit (University of Pretoria), Sea Mammal Research Unit (University of St Andrews) and several international ... |
format |
Article in Journal/Newspaper |
author |
Penry, G.S. (Gwenith) Hammond, Philip S. Cockcroft, Victor G. Best, Peter B. Thornton, Meredith Graves, Jeff A. |
author_facet |
Penry, G.S. (Gwenith) Hammond, Philip S. Cockcroft, Victor G. Best, Peter B. Thornton, Meredith Graves, Jeff A. |
author_sort |
Penry, G.S. (Gwenith) |
title |
Phylogenetic relationships in southern African Bryde’s whales inferred from mitochondrial DNA : further support for subspecies delineation between the two allopatric populations |
title_short |
Phylogenetic relationships in southern African Bryde’s whales inferred from mitochondrial DNA : further support for subspecies delineation between the two allopatric populations |
title_full |
Phylogenetic relationships in southern African Bryde’s whales inferred from mitochondrial DNA : further support for subspecies delineation between the two allopatric populations |
title_fullStr |
Phylogenetic relationships in southern African Bryde’s whales inferred from mitochondrial DNA : further support for subspecies delineation between the two allopatric populations |
title_full_unstemmed |
Phylogenetic relationships in southern African Bryde’s whales inferred from mitochondrial DNA : further support for subspecies delineation between the two allopatric populations |
title_sort |
phylogenetic relationships in southern african bryde’s whales inferred from mitochondrial dna : further support for subspecies delineation between the two allopatric populations |
publisher |
Springer |
publishDate |
2018 |
url |
http://hdl.handle.net/2263/66918 https://doi.org/10.1007/s10592-018-1105-4 |
geographic |
Pacific Indian |
geographic_facet |
Pacific Indian |
genre |
Sei Whale |
genre_facet |
Sei Whale |
op_relation |
http://hdl.handle.net/2263/66918 Penry, G.S., Hammond, P.S., Cockcroft, V.G. et al. Phylogenetic relationships in southern African Bryde’s whales inferred from mitochondrial DNA: further support for subspecies delineation between the two allopatric populations. Conservation Genetics (2018). https://doi.org/10.1007/s10592-018-1105-4. NYP. 1566-0621 (print) 1572-9737 (online) doi:10.1007/s10592-018-1105-4 |
op_rights |
© Springer Nature B.V. 2018. The original publication is available at http://link.springer.comjournal/10592. |
op_doi |
https://doi.org/10.1007/s10592-018-1105-4 |
container_title |
Conservation Genetics |
container_volume |
19 |
container_issue |
6 |
container_start_page |
1349 |
op_container_end_page |
1365 |
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1766196122481590272 |