Isozymes Variation of Clarias macrocephalus from Four Locations in Thailand

Uthairat Na-Nakorn, Motoyuki Hara, Nobuhiko Taniguchi, Shingo Seki

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Fourteen enzymes or protein were assayed in four natural populations of Clarias macrocephalus collected from different parts of Thailand; north (Chiangrai), central (Prachinburi) and south (Pattani and Yala). Starch-gel electrophoresis followed by histochemical staining were conducted and resulted in 19 loci resolved. Twelve loci (sAAT*, GAPDH-1*, 2*, IDHP*, LDH-1*, 2*, sMDH-1*, ME-1, 2*, GPI*, MPI* and PROT*) were monomorphic while seven of them were polymorphic which included EST*, FH*, sMDH-2*, ME-3*, PGM*, PGDH* and sSOD*. Observed heterozygosity were 0.080, 0.076, 0.038 and 0.050 respective to Chiangrai, Prachinburi, Pattani and Yala population. Genetic distance revealed two population groups, which were Chiangrai-Prachinburi and Pattani-Yala group and genetic distance was larger within the first group than those within the second group.

Original languageEnglish
Pages (from-to)526-530
Number of pages5
JournalFisheries Science
Issue number4
Publication statusPublished - 1998 Aug
Externally publishedYes


  • Clarias macrocephalus
  • Isozyme
  • Population genetics

ASJC Scopus subject areas

  • Aquatic Science


Dive into the research topics of 'Isozymes Variation of Clarias macrocephalus from Four Locations in Thailand'. Together they form a unique fingerprint.

Cite this