A single nucleotide polymorphism in the alternative oxidase gene among rice varieties differing in low temperature tolerance

Fumitaka Abe, Koji Saito, Kiyoyuki Miura, Kinya Toriyama

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

Alternative oxidase (AOX) is encoded in a multigene family, and multiple isoforms have been observed in various plant species. We found for the first time an allelic variation in the same AOX locus. On SDS-gel blots of callus protein of rice (Oryza sativa L.), varieties without the QTL for low temperature tolerance showed a 32-kDa AOX band, whereas those with the QTL showed a 34-kDa band. The variation was attributed to the substitution of Lys71 for Asn71 caused by a single nucleotide polymorphism between alleles of OsAOX1a, and was tightly linked to the presence of the QTL.

Original languageEnglish
Pages (from-to)181-185
Number of pages5
JournalFEBS Letters
Volume527
Issue number1-3
DOIs
Publication statusPublished - 2002 Sep 11

Keywords

  • Alternative oxidase
  • Isoforms
  • Low temperature tolerance
  • Oryza sativa L
  • Single nucleotide polymorphism

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology

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