Leaf-variegated mutations and their responsible genes in Arabidopsis thaliana

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Author(s)

Abstract

Leaf variegation has long been known as a recessive genetic trait in higher plants. Unlike albino mutants, leaf-variegated mutants are non-lethal and thus enable us to study a novel mechanism of plastid development and maintenance. Variegation results from a defect that makes chloroplast development unstable, since at least part of the tissues gives rise to normal chloroplasts. Despite the fact that leaf-variegated mutants have contributed to the findings of maternal inheritance or have been used as genetic markers, these mutations and the responsible loci have been poorly understood at the molecular level. A comprehensive study of the leaf-variegated mutants is possible in <i>Arabidopsis</i>, since such mutants have been known and the cloning can be at relative ease as a model plant. Here I summarize recent progress on characterization of the Arabidopsis leaf-variegated mutants. Detailed analysis of the responsible loci revealed that variegation is caused by a defect in various metabolic pathways related to organelle functions. Thus, studies on these genes provide us with novel redundant mechanisms by which heteroplasmic organelles such as plastids and mitochondria can survive from an environmental stress.<br>

Journal

  • Genes & Genetic Systems

    Genes & Genetic Systems 78(1), 1-9, 2003-02-01

    The Genetics Society of Japan

References:  72

Cited by:  7

Codes

  • NII Article ID (NAID)
    130000060776
  • NII NACSIS-CAT ID (NCID)
    AA11077421
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    13417568
  • NDL Article ID
    6474197
  • NDL Source Classification
    ZR1(科学技術--生物学)
  • NDL Call No.
    Z53-W539
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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