Identification of quantitative trait loci associated with shoot sodium accumulation under low potassium conditions in rice plants

• Miyamoto, Takuji

• 落合, 久美子

• Takeshita, Saya

• Matoh, Toru

抄録

Sodium (Na) application has marked beneficial effects on plant growth when the potassium (K) supply is low. Under low K supply, three japonica rice (Oryza sativa L.) cultivars, Koshihikari, Nipponbare, and Sasanishiki, accumulated more Na than three indica cultivars, IR36, IR64, and Kasalath, and the effect of Na application on growth was greater in japonica Koshihikari plants than in indica IR64 plants. A quantitative trait locus (QTL) analysis using a population of backcross inbred lines derived from japonica Koshihikari and indica Kasalath identified two significant loci associated with shoot Na concentration on chromosomes 3 and 6. The quantitative trait locus for shoot Na accumulation on chromosome 6 was confirmed in a population of chromosome segment substitution lines. The major QTL detected in this study could be useful for increasing crop productivity under low K input.

収録刊行物

• Soil Science and Plant Nutrition

  Soil Science and Plant Nutrition 58 (6), 728-736, 2012-12-13

  Taylor & Francis

キーワード

• Oryza sativa
• potassium
• QTL
• sodium accumulation
• substitution effect

詳細情報

• CRID: 1050001335794246528
• NII論文ID: 110009580150
• NII書誌ID: AA00844314
• ISSN: 00380768
• ISSN: 17470765
• DOI: 10.1080/00380768.2012.745797
• HANDLE: 2433/188918
• Web Site: http://www.tandfonline.com/doi/pdf/10.1080/00380768.2012.745797
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • Crossref
  • CiNii Articles