Reproductive isolation between sympatric Anguilla japonica and Anguilla marmorata

S. Chow, H. Kurogi, T. Yamamoto, T. Tomoda, N. Mochioka, F. Shirotori, T. Yoshinaga, D. Ambe, M. Okazaki, S. Nagai, T. Yanagimoto

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Species-specific restriction fragment length polymorphism in the intron of the androgen receptor gene (ar5) was found in glass to silver-stage individuals of Anguilla japonica (n = 51) and A. marmorata (n = 21). The sequence analysis of 16S rDNA from 328 anguillid leptocephali collected in the North Equatorial Current of the western North Pacific Ocean revealed the specimens to be A. japonica (n = 194), A. marmorata (n = 128), A. bicolor pacifica (n = 5) and A. luzonensis (n = 1). All leptocephali of A. japonica and A. marmorata were monomorphic and did not share an allele at the ar5 locus, indicating that the two species are reproductively isolated.

Original languageEnglish
Pages (from-to)1517-1525
Number of pages9
JournalJournal of Fish Biology
Issue number5
Publication statusPublished - Nov 2017

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science


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