Biochemical genetic evidence for a hybrid origin of spined loach, Cobitis taenia taenia, in Japan

K. Sezaki, S. Watabe, Y. Ochiai, K. Hashimoto

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Starch gel electrophoresis and isoelectric focusing were performed on sarcoplasmic proteins from three taxa of cobitid fish in Japan, Cobitis biwae, C. taenia striata and C. l. taenia. These taxa are hardly distinguishable from each other by external appearance or morphological characters. Electrophoretic patterns of sarcoplasmic proteins from white muscle suggested fixed allelic differences between C. biwae and C. t. striata at two protein‐coding loci (parvalbumin and creatine kinase). The third taxon, C. t. taenia, showed composite banding patterns with respect to the above two proteins, suggesting C. t, taenia originated from hybridization between C. biwae and C, t. striata. Previously, C. t, taenia and C. t. striata were believed to have shared a common ancestor subsequent to their divergence from C. biwae.

Original languageEnglish
Pages (from-to)683-691
Number of pages9
JournalJournal of Fish Biology
Volume44
Issue number4
DOIs
Publication statusPublished - 1994 Apr
Externally publishedYes

Keywords

  • Cobitis
  • creatine kinase
  • hybrid
  • parvalbumin
  • speciation
  • spined loach

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

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