A QTL Cluster for Plant Architecture and Its Ecological Significance in Asian Wild Rice

Onishi, Kazumitsu; Horiuchi, Yuki; Ishigoh-Oka, Noriko; Takagi, Kyoko; Ichikawa, Naofumi; Maruoka, Masamichi; Sano, Yoshio

A QTL Cluster for Plant Architecture and Its Ecological Significance in Asian Wild Rice

Onishi, Kazumitsu; Horiuchi, Yuki; Ishigoh-Oka, Noriko et al.

Breeding Science, 2007, 57(1), 7-16

Permalink : https://hdl.handle.net/2115/25394

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アクセス権	open access
URI	https://hdl.handle.net/2115/25394
タイトル	A QTL Cluster for Plant Architecture and Its Ecological Significance in Asian Wild Rice
著者	Onishi, Kazumitsu ; Horiuchi, Yuki ; Ishigoh-Oka, Noriko ; Takagi, Kyoko ; Ichikawa, Naofumi ; Maruoka, Masamichi ; Sano, Yoshio
著者名 Onishi, Kazumitsu
著者名 Horiuchi, Yuki
著者名 Ishigoh-Oka, Noriko
著者名 Takagi, Kyoko
著者名 Ichikawa, Naofumi
著者名 Maruoka, Masamichi
著者名 Sano, Yoshio
言語	英語
キーワード	Oryza sativa
	Oryza rufipogon
	annual type
	domestication
	disturbance
	plant architecture
	quantitative trait locus (QTL)
発行日	2007-03
出版者	日本育種学会
出版者	Japanese Society of Breeding（JSB）
収録物名	Breeding Science
巻(号)	57(1)
ページ	7-16
抄録	The wild progenitor (Oryza rufipogon) of Asian rice (Oryza sativa) shows a wide range of variations in life-history traits, forming an annual-perennial continuum. A conspicuous feature of an annual type of wild rice is represented by its adaptability to disturbed habitats, and its short stature with many tillers and a prostrate growth habit. The present study was carried out to examine the genetic differentiation between wild annual and cultivated (Japonica type) rice strains by quantitative trait locus (QTL) analysis. In total, 20 adaptive and/or domestication-related traits were evaluated in recombinant inbred lines (RILs). A total of 28 putative QTLs were detected across the genome. Six QTLs responsible for plant architecture were located on the short arm of chromosome 7. The near-isogenic line with the region containing the QTL cluster confirmed that the QTLs exerted a significant effect on the plant architecture in the genetic background of cultivated rice. A similar QTL cluster was also found in another annual strain of a different origin, suggesting that the QTL cluster might be predominant in annual wild rice. Furthermore, a QTL for tolerance to disturbance (simulated trampling) was detected within the region of the cluster on chromosome 7. These results are discussed in relation to their ecological significance in wild annuals of rice.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	本稿は日本育種学会に著作権があり、同会の許可を得て転載するものである。本稿のPDFファイルはNII/CiNiiで公開されているものである。
PISSN	1344-7610
EISSN	1347-3735
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1270/jsbbs.57.7