Population structure of pygmy (Kogia breviceps) and dwarf (Kogia sima) sperm whales in the Southern Hemisphere may reflect foraging ecology and dispersal patterns.
Australia
Kogiids
New Zealand
Odontocetes
Population genetics
South Africa
Journal
Advances in marine biology
ISSN: 2162-5875
Titre abrégé: Adv Mar Biol
Pays: United States
ID NLM: 0370431
Informations de publication
Date de publication:
2023
2023
Historique:
medline:
20
11
2023
pubmed:
19
11
2023
entrez:
18
11
2023
Statut:
ppublish
Résumé
Little is known about the biology of pygmy (Kogia breviceps) and dwarf (K. sima) sperm whales as these animals are difficult to observe in the wild. However, both species strand frequently along the South African, Australian and New Zealand coastlines, providing samples for these otherwise inaccessible species. The use of DNA samples from tissue and DNA extracted from historical material, such as teeth and bone, allowed a first analysis of the population structure of both species in the Southern Hemisphere. A 279 base pair consensus region of the mitochondrial cytochrome b gene was sequenced for 96 K. breviceps (53 tissue and 43 teeth or bone samples) and 29 K. sima (3 tissue and 26 teeth or bone samples), and 26 and 12 unique haplotypes were identified, respectively. K. breviceps showed a higher nucleotide diversity of 0.82% compared to 0.40% in K. sima. Significant genetic differentiation was detected in the Southern Hemisphere between K. breviceps from South Africa and New Zealand (Ф
Identifiants
pubmed: 37980130
pii: S0065-2881(23)00023-8
doi: 10.1016/bs.amb.2023.09.001
pii:
doi:
Substances chimiques
DNA
9007-49-2
Nucleotides
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
85-114Informations de copyright
Copyright © 2023. Published by Elsevier Ltd.