Roles of the ASYMMETRIC LEAVES2 gene in floral organ development in Arabidopsis thaliana

• Keta Sumie

  Graduate School of Bioscience and Biotechnology, Chubu University

• Iwakawa Hidekazu

  Plant Biology Research Center, Chubu University

• Ikezaki Masaya

  Division of Biological Science, Graduate School of Science, Nagoya University

• Semiarti Endang

  Faculty of Biology, Gadjah Mada University

• Kojima Shoko

  Graduate School of Bioscience and Biotechnology, Chubu University

• Machida Yasunori

  Division of Biological Science, Graduate School of Science, Nagoya University

• Machida Chiyoko

  Graduate School of Bioscience and Biotechnology, Chubu University Plant Biology Research Center, Chubu University

書誌事項

タイトル別名

• Roles of the <i>ASYMMETRIC LEAVES2</i> gene in floral organ development in <i>Arabidopsis thaliana</i>

抄録

The ASYMMETRIC LEAVES2 (AS2) gene in Arabidopsis thaliana, a member of the AS2/LOB gene family, is involved in the development of a symmetrical expanded lamina, with the rachis as the axis. On flowering, transcripts of AS2 were detected in inflorescence meristems, floral meristems, and primordia of all floral organs. Levels of accumulation of AS2 transcripts were then decreased in the late stage of the floral organ primordia. β-glucuronidase (GUS) activities were examined in transgenic plants that had been transformed with the GUS gene controlled by the AS2 promoter and were detected in early stages of flower development. We quantified the length of floral organs at each developmental stage. Our results showed that the ratios of lengths of stamen to sepal and carpel to sepal in the as2-1 and as1-1 mutants were larger than those seen in wild-type plants in stages 12 to 14. Furthermore, the changes in the ratios of the lengths of floral organs in as2-1 and as1-1 mutants were suppressed by the mutations of class 1 KNOX genes. These results indicate that AS2 and AS1 genes would control the balance of the floral organ lengths via repressing class 1 KNOX genes in reproductive stages.

収録刊行物

• Ｐｌａｎｔ　Ｂｉｏｔｅｃｈｎｏｌｏｇｙ

  Ｐｌａｎｔ　Ｂｉｏｔｅｃｈｎｏｌｏｇｙ 29 (1), 1-8, 2012

  日本植物バイオテクノロジー学会

キーワード

• <i>ASYMMETRIC LEAVES1</i> (<i>AS1</i>)
• AS2/LOB family
• class 1 <i>KNOX</i>
• floral meristem
• proximal-distal axis

詳細情報

• CRID: 1390001204327706752
• NII論文ID: 10030561208
• NII書誌ID: AA11250821
• DOI: 10.5511/plantbiotechnology.11.1101a
• COI: 1:CAS:528:DC%2BC38XmvFGmsbs%3D
• ISSN: 13476114
• ISSN: 13424580
• NDL書誌ID: 023567276
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023567276
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可