論文

査読有り
2016年6月

Sorghum Dw1, an agronomically important gene for lodging resistance, encodes a novel protein involved in cell proliferation

SCIENTIFIC REPORTS
  • Miki Yamaguchi
  • Haruka Fujimoto
  • Ko Hirano
  • Satoko Araki-Nakamura
  • Kozue Ohmae-Shinohara
  • Akihiro Fujii
  • Masako Tsunashima
  • Xian Jun Song
  • Yusuke Ito
  • Rie Nagae
  • Jianzhong Wu
  • Hiroshi Mizuno
  • Jun-ichi Yonemaru
  • Takashi Matsumoto
  • Hidemi Kitano
  • Makoto Matsuoka
  • Shigemitsu Kasuga
  • Takashi Sazuka
  • 全て表示

6
開始ページ
28366
終了ページ
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1038/srep28366
出版者・発行元
NATURE PUBLISHING GROUP

Semi-dwarfing genes have contributed to enhanced lodging resistance, resulting in increased crop productivity. In the history of grain sorghum breeding, the spontaneous mutation, dw1 found in Memphis in 1905, was the first widely used semi-dwarfing gene. Here, we report the identification and characterization of Dw1. We performed quantitative trait locus (QTL) analysis and cloning, and revealed that Dw1 encodes a novel uncharacterized protein. Knockdown or T-DNA insertion lines of orthologous genes in rice and Arabidopsis also showed semi-dwarfism similar to that of a nearly isogenic line (NIL) carrying dw1 (NIL-dw1) of sorghum. A histological analysis of the NIL-dw1 revealed that the longitudinal parenchymal cell lengths of the internode were almost the same between NIL-dw1 and wildtype, while the number of cells per internode was significantly reduced in NIL-dw1. NIL-dw1dw3, carrying both dw1 and dw3 (involved in auxin transport), showed a synergistic phenotype. These observations demonstrate that the dw1 reduced the cell proliferation activity in the internodes, and the synergistic effect of dw1 and dw3 contributes to improved lodging resistance and mechanical harvesting.

リンク情報
DOI
https://doi.org/10.1038/srep28366
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/27329702
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000378227500001&DestApp=WOS_CPL
ID情報
  • DOI : 10.1038/srep28366
  • ISSN : 2045-2322
  • PubMed ID : 27329702
  • Web of Science ID : WOS:000378227500001

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