Genetic analysis of spontaneous mutants derived from local variety 'Akage'

• Imai Katsunori

  Faculty of Agriculture and Life Science, Hirosaki University The United Graduate School of Agricultural Sciences, Iwate University

• Chiba Yuki

  Faculty of Agriculture and Life Science, Hirosaki University

• Tamura Yuka

  Faculty of Agriculture and Life Science, Hirosaki University

• Takeya Atsuko

  Faculty of Agriculture and Life Science, Hirosaki University

• Murai Masayuki

  Faculty of Agriculture, Kochi University

• Sato Yo-Ichiro

  Research Institute for Humanity and Nature

• Ishikawa Ryuji

  Faculty of Agriculture and Life Science, Hirosaki University

Bibliographic Information

Other Title

• イネ在来系統‘赤毛’から生じた新規変異体の遺伝解析
• イネ ザイライ ケイトウ アカゲ カラ ショウジタ シンキ ヘンイタイ ノ イデン カイセキ

Abstract

Spontaneous mutants representing novel phenotypes were found in selfed progeny of ‘Akage’. An indeterminate mutant, ectopic palea dwarf (epd), decreasing hull size (dhs), degraded auricle and semi-dwarf (das) and chlorina-Akage (chl-Akage) were characterized as recessive mutants. epd showed a severe phenotype under winter conditions for the proliferation of spikelets, although under summer conditions, it showed a slightly reduced first internode, high sterility, multiple ectopic palea-like structures inside spikelets, and double lemmas. The candidate locus was localized near the OsMADS6 locus on chromosome 2 and large deletion was found inside the gene. dhs showed decreased hull toward the edge of each rachis. In the winter season, the phenotype recovered as normal ‘Akage’. Semi-dwarf das showed 67% reduced plant height. As auricles of the mutants degraded, leaf blades became erect. A chlorophyll mutant and severe dwarf such as d1 mutant were also detected. The mutability of ‘Akage’ would be useful to generate novel mutants by self-crossing.<br>

Journal

• Breeding Research

  Breeding Research 10 (4), 135-143, 2008

  Japanese Society of Breeding

Keywords

• <i>Oryza sativa</i> L.
• proliferation
• semi-dwarf
• chimera
• <i>OsMADS6</i>
• spontaneous mutants

Details

• CRID: 1390282679445504640
• NII Article ID: 110007007896
• NII Book ID: AA11317194
• DOI: 10.1270/jsbbr.10.135
• ISSN: 13481290
• ISSN: 13447629
• NDL BIB ID: 9747945
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010763536
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9747945
• Web Site: http://www.jstage.jst.go.jp/article/jsbbr/10/4/10_4_135/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed