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2 June 2021 Mitochondrial DNA Haplotypes of Killer Whales around Hokkaido, Japan
Yoko Mitani, Yuki F. Kita, Shigeo Saino, Motoi Yoshioka, Hiroshi Ohizumi, Fumio Nakahara
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Abstract

In this study, we examined a genetic variation of killer whales, Orcinus orca, from off the coast of Hokkaido, Japan, by sequencing the D-loop and cytochrome b (Cyt-b) regions of the mitochondrial genome. Three D-loop and two Cyt-b haplotypes were identified from eight skin biopsies. These five haplotypes had been previously deposited at GenBank and the International Nucleotide Sequence Database Collaboration (INSDC). Two D-loop and one Cyt-b haplotypes were consistent with the marine mammal-eating “Transient” ecotype previously reported in Japanese waters. One D-loop and one Cyt-b haplotypes were identified as the fish-eating “Resident” or “Offshore” ecotype that is the first record of this ecotype in Japanese waters. Our study showed that different ecotypes exist in Japanese waters, contributing to the conservation and management of killer whales.

© The Mammal Society of Japan
Yoko Mitani, Yuki F. Kita, Shigeo Saino, Motoi Yoshioka, Hiroshi Ohizumi, and Fumio Nakahara "Mitochondrial DNA Haplotypes of Killer Whales around Hokkaido, Japan," Mammal Study 46(3), 205-211, (2 June 2021). https://doi.org/10.3106/ms2020-0072
Received: 18 July 2020; Accepted: 5 December 2020; Published: 2 June 2021
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KEYWORDS
cytochrome b
D-loop
ecotype
Orcinus orca
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