Ichthyological Research

, Volume 64, Issue 1, pp 139–144 | Cite as

Genetic characterization of Amur sturgeon Acipenser schrenckii and its hybrid caught around Hokkaido

  • Noriko Azuma
  • Seishi Hagihara
  • Masaki Ichimura
  • Yasuaki Takagi
  • Kazuhiro Ura
  • Shinji Adachi
Short Report


Genetic characterization was performed in five individuals of wild Amur sturgeon Acipenser schrenckii, and/or its presumed hybrid caught around Hokkaido, using a mitochondrial DNA (mtDNA) marker and two markers of nuclear DNA (nDNA). Genetic analyses indicated that two of the five fish had the mtDNA haplotype of Kaluga, Huso dauricus, whereas the nDNA markers indicated signs for both A. schrenckii and H. dauricus genotypes, referring to a hybrid origin. The other three fish were plausibly pure A. schrenckii. The results indicated the importance of combined usage of mtDNA and nDNA markers for correct species identification in sturgeon.


Species identification Hybridization Genetic marker 



This study was partly supported by the Regional Innovation Strategy Support Program, Ministry of Education, Culture, Sports, Science, and Technology, Japan, and funded by JSPS KAKENHI Grant Number 26450256. The research presented here complies with the current laws of Japan and the guidelines of the Ichthyological Society of Japan. The authors declare no conflicts of interest.


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Copyright information

© The Ichthyological Society of Japan 2016

Authors and Affiliations

  1. 1.Graduate School of Fisheries SciencesHokkaido UniversityHakodateJapan
  2. 2.Salmon Science MuseumShibetsu-GunJapan

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