Oceanographic barriers, divergence, and admixture: Phylogeography and taxonomy of two putative subspecies of short‐finned pilot whale. Issue 11 (2nd June 2019)
- Record Type:
- Journal Article
- Title:
- Oceanographic barriers, divergence, and admixture: Phylogeography and taxonomy of two putative subspecies of short‐finned pilot whale. Issue 11 (2nd June 2019)
- Main Title:
- Oceanographic barriers, divergence, and admixture: Phylogeography and taxonomy of two putative subspecies of short‐finned pilot whale
- Authors:
- Van Cise, Amy M.
Baird, Robin W.
Baker, Charles Scott
Cerchio, Salvatore
Claridge, Diane
Fielding, Russell
Hancock‐Hanser, Brittany
Marrero, Jacobo
Martien, Karen K.
Mignucci‐Giannoni, Antonio A.
Oleson, Erin M.
Oremus, Marc
Poole, M. Michael
Rosel, Patricia E.
Taylor, Barbara L.
Morin, Phillip A. - Abstract:
- Abstract: Genomic phylogeography plays an important role in describing evolutionary processes and their geographic, ecological, or cultural drivers. These drivers are often poorly understood in marine environments, which have fewer obvious barriers to mixing than terrestrial environments. Taxonomic uncertainty of some taxa (e.g., cetaceans), due to the difficulty in obtaining morphological data, can hamper our understanding of these processes. One such taxon, the short‐finned pilot whale, is recognized as a single global species but includes at least two distinct morphological forms described from stranding and drive hunting in Japan, the "Naisa" and "Shiho" forms. Using samples ( n = 735) collected throughout their global range, we examine phylogeographic patterns of divergence by comparing mitogenomes and nuclear SNP loci. Our results suggest three types within the species: an Atlantic Ocean type, a western/central Pacific and Indian Ocean (Naisa) type, and an eastern Pacific Ocean and northern Japan (Shiho) type. mtDNA control region differentiation indicates these three types form two subspecies, separated by the East Pacific Barrier: Shiho short‐finned pilot whale, in the eastern Pacific Ocean and northern Japan, and Naisa short‐finned pilot whale, throughout the remainder of the species' distribution. Our data further indicate two diverging populations within the Naisa subspecies, in the Atlantic Ocean and western/central Pacific and Indian Oceans, separated by theAbstract: Genomic phylogeography plays an important role in describing evolutionary processes and their geographic, ecological, or cultural drivers. These drivers are often poorly understood in marine environments, which have fewer obvious barriers to mixing than terrestrial environments. Taxonomic uncertainty of some taxa (e.g., cetaceans), due to the difficulty in obtaining morphological data, can hamper our understanding of these processes. One such taxon, the short‐finned pilot whale, is recognized as a single global species but includes at least two distinct morphological forms described from stranding and drive hunting in Japan, the "Naisa" and "Shiho" forms. Using samples ( n = 735) collected throughout their global range, we examine phylogeographic patterns of divergence by comparing mitogenomes and nuclear SNP loci. Our results suggest three types within the species: an Atlantic Ocean type, a western/central Pacific and Indian Ocean (Naisa) type, and an eastern Pacific Ocean and northern Japan (Shiho) type. mtDNA control region differentiation indicates these three types form two subspecies, separated by the East Pacific Barrier: Shiho short‐finned pilot whale, in the eastern Pacific Ocean and northern Japan, and Naisa short‐finned pilot whale, throughout the remainder of the species' distribution. Our data further indicate two diverging populations within the Naisa subspecies, in the Atlantic Ocean and western/central Pacific and Indian Oceans, separated by the Benguela Barrier off South Africa. This study reveals a process of divergence and speciation within a globally‐distributed, mobile marine predator, and indicates the importance of the East Pacific Barrier to this evolutionary process. … (more)
- Is Part Of:
- Molecular ecology. Volume 28:Issue 11(2019)
- Journal:
- Molecular ecology
- Issue:
- Volume 28:Issue 11(2019)
- Issue Display:
- Volume 28, Issue 11 (2019)
- Year:
- 2019
- Volume:
- 28
- Issue:
- 11
- Issue Sort Value:
- 2019-0028-0011-0000
- Page Start:
- 2886
- Page End:
- 2902
- Publication Date:
- 2019-06-02
- Subjects:
- cetacean -- Globicephala macrorhynchus -- phylogeography -- population structure -- taxonomy
Molecular ecology -- Periodicals
Molecular population biology -- Periodicals
576 - Journal URLs:
- http://www.blackwell-synergy.com/servlet/useragent?func=showIssues&code=mec&close=1999#C1999 ↗
http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-294X ↗
http://onlinelibrary.wiley.com/ ↗ - DOI:
- 10.1111/mec.15107 ↗
- Languages:
- English
- ISSNs:
- 0962-1083
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 5900.817360
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 11005.xml