Improvement of seed shattering and dormancy in Oryza sativa L. 'Hokuriku 193' based on genetic information

• Nagaoka Ichiro

  Central Region Agricultural Research Center, NARO

• Sasahara Hideki

  Central Region Agricultural Research Center, NARO

• Tabuchi Hiroaki

  Kyushu Okinawa Agricultural Research Center, NARO

• Shigemune Akiko

  Western Region Agricultural Research Center, NARO

• Matsushita Kei

  Central Region Agricultural Research Center, NARO

• Maeda Hideo

  Central Region Agricultural Research Center, NARO

• Goto Akitoshi

  Institute of Crop Science, NARO

• Fukuoka Shuichi

  Institute of Crop Science, NARO

• Ando Tsuyu

  Institute of Crop Science, NARO

• Miura Kiyoyuki

  deceased

書誌事項

タイトル別名

• Improvement of seed shattering and dormancy in <i>Oryza sativa</i> L. ‘Hokuriku 193’ based on genetic information

抄録

In this study, we investigated the genetic basis of seed shattering and dormancy in Hokuriku 193 and bred an NIL improved these traits. Analysis of an F₃ population from Hokuriku 193 × Koshihikari revealed a general correspondence between seed shattering and genotypes at the qSH1 locus, suggesting a strong influence of this locus on the seed shattering in Hokuriku 193. An F₂ population from [ms-bo] Nekken 2 × Hokuriku 193 was also analyzed to identify quantitative trait loci (QTLs) for seed dormancy as measured by germination rate in the first December and March after seed harvest. The results revealed a concurrence QTLs of on chromosomes 1, 3, and 6 (qSDo1, qSDo3, qSDo6). In particular, qSDo1 and qSDo6 were considered regions worthy of active modification because they were QTL regions that promoted seed dormancy when carrying Hokuriku 193 genome regions around. SSDo_NIL, a near isogenic line (NIL) derived from Hokuriku 193 by introgressing Nekken 2 alleles only at the qSH1 locus and qSDo1, did not shatter, and its germination rate was significantly higher than that of Hokuriku 193. Yield performance was similar between SSDo_NIL and Hokuriku 193, suggesting that improvement of seed shattering and dormancy does not affect yield.

収録刊行物

• Ｂｒｅｅｄｉｎｇ　Ｓｃｉｅｎｃｅ

  Ｂｒｅｅｄｉｎｇ　Ｓｃｉｅｎｃｅ 67 (3), 173-180, 2017

  日本育種学会

キーワード

• Hokuriku 193
• near isogenic line (NIL)
• <i>Oryza sativa</i> L.
• quantitative trait loci (QTLs)
• seed dormancy
• seed shattering

詳細情報

• CRID: 1390001204722713216
• NII論文ID: 130005765916
• NII書誌ID: AA11317194
• DOI: 10.1270/jsbbs.16128
• ISSN: 13473735
• ISSN: 13447610
• NDL書誌ID: 028608878
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028608878
• Web Site: https://www.jstage.jst.go.jp/article/jsbbs/67/3/67_16128/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可