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Ichthyological Research

, Volume 65, Issue 1, pp 165–167 | Cite as

No reduction of hatching rates among F1 hybrids of naturally hybridizing three Far Eastern daces, genus Tribolodon (Cypriniformes, Cyprinidae)

  • Keisuke AtsumiEmail author
  • Kazuhiro Nomoto
  • Yoshiyasu Machida
  • Masaki Ichimura
  • Itsuro Koizumi
Short Report

Abstract

Egg hatching rates of F1 hybrids among three fishes, Japanese dace Tribolodon hakonensis, Pacific redfin T. brandtii, and rosyface dace T. sachalinensis, were compared with pure crosses. They are highly divergent (diverged 10–20 million years ago) but naturally hybridizing. Although crosses involving female rosyface dace were not available, hatching success was high among all combinations of hybrids (76 ± 23%) and comparable to pure crosses (86 ± 8%), implying ecological or genetic isolation mechanisms maintaining each species in later life stages.

Keywords

Genetic incompatibility Intrinsic isolation Hybrid inviability Introgression 

Notes

Acknowledgments

We appreciate the two anonymous reviewers for their helpful comments and C. Ayer for the English check. All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. We have no conflict of interest.

References

  1. Atsumi K, Koizumi I (2017) Web image search revealed large-scale variations in breeding season and nuptial coloration in mutually ornamented fish, Tribolodon hakonensis. Ecol Res. doi  10.1007/s11284-017-1466-z
  2. Coyne JA, Orr HA (2004) Speciation. Sinauer Associates, SunderlandGoogle Scholar
  3. Imoto J, Saitoh K, Sasaki T, Yonezawa T, Adachi J, Kartavtsev Y, Miya M, Nishida M, Hanzawa N (2013) Phylogeny and biogeography of highly diverged freshwater fish species (Leuciscinae, Cyprinidae, Teleostei) inferred from mitochondrial genome analysis. Gene 514:112–124Google Scholar
  4. Nakamura M, Mochizuki Y (1953) On the differentiation of freshwater and brackishwater forms of Japanese cyprinid fish referred to genus Tribolodon. Misc Rep Res Inst Nat Resour 32:11–22Google Scholar
  5. Russell ST (2003) Evolution of intrinsic post-zygotic reproductive isolation in fish. Ann Zool Fennici 40:321–329Google Scholar
  6. Sakai H (1995) Life-histories and genetic divergence in three species of Tribolodon (Cyprinidae). Mem Fac Fish Hokkaido Univ 42:1–98Google Scholar
  7. Sakai H, Hamada K (1985) Electrophoretic discrimination of Tribolodon species (Cyprinidae) and the occurrence of their hybrids. Japan J Ichthyol 32:216–224Google Scholar
  8. Stelkens R, Young K, Seehausen O (2009) The accumulation of reproductive incompatibilities in African cichlid fish. Evolution 64:617–33Google Scholar
  9. Stelkens R, Schmid C, Seehausen O (2015) Hybrid Breakdown in Cichlid Fish. PLoS One 10:e0127207Google Scholar

Copyright information

© The Ichthyological Society of Japan 2017

Authors and Affiliations

  1. 1.Graduate School of Environmental ScienceHokkaido UniversitySapporoJapan
  2. 2.Shibetsu Salmon MuseumShibetsu-gunJapan
  3. 3.Bihoro MuseumAbashiri-gunJapan
  4. 4.Faculty of Environmental Earth ScienceHokkaido UniversitySapporoJapan

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