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https://hdl.handle.net/20.500.14094/90004359
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2024-04-27
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90004359 (fulltext)
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メタデータID
90004359
アクセス権
open access
出版タイプ
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タイトル
Identification of Quantitative Trait Loci Controlling Floral Morphology of Rice Using a Backcross Population between Common Cultivated Rice, Oryza sativa and Asian Wild Rice, O. rufipogon
著者
Ishikawa, Ryo ; Watabe, Takafumi ; Nishioka, Ryo ; Thanh, Pham Thien ; Ishii, Takashige
著者ID
A1059
研究者ID
1000070467687
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=742dba9c659abe53520e17560c007669
著者名
Ishikawa, Ryo
石川, 亮
イシカワ, リョウ
所属機関名
農学研究科
著者名
Watabe, Takafumi
著者名
Nishioka, Ryo
著者名
Thanh, Pham Thien
著者ID
A1029
研究者ID
1000020260648
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=1bd0b031f3884fdd520e17560c007669
著者名
Ishii, Takashige
石井, 尊生
イシイ, タカシゲ
所属機関名
農学研究科
収録物名
American Journal of Plant Sciences
巻(号)
8
ページ
734-744
出版者
Scientific Research Publishing
刊行日
2017-03-20
公開日
2017-11-16
抄録
Differences in floral morphologies affect pollination behaviour in many flowering plants. In the genus Oryza, several differences in the size of floral organs are known. In this study, we focused on the differences in the size of floral organs between common cultivated rice, Oryza sativa L. and its wild ancestor, O. rufipogon. We compared floral morphologies between cultivated rice O. sativa cv. Nipponbare and O. rufipogon W630. We first evaluated temporal changes in filament and anther lengths. W630 had longer filaments with rapid elongation within 15 min after spikelet opening. W630 also had longer anthers than Nipponbare, and size of anther was consistent throughout all time examined. We also analysed other six floral traits, and found that W630 had higher stigma and style length, as well as lemma and palea length, but lower lemma and palea width. Quantitative trait locus (QTL) analysis was performed to identify the loci controlling these floral traits, using backcross recombinant inbred lines derived from a cross between Nipponbare and W630. A total of 11 significant QTLs were identified. Of these, two pairs of QTLs for lemma and palea length and one pair for lemma and palea width overlapped, suggesting that common genetic factors may be the reason for the differences in these traits. In addition, we performed QTL analysis for grain size, and found that QTLs for grain size coincided with those for lemma and palea size, indicating that grain size is partly controlled by glume capacity. The QTLs identified in this study will be informative for understanding genetic changes associated with rice domestication.
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農学研究科
学術雑誌論文
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© 2017 by authors and Scientific Research Publishing Inc.
This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/
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資源タイプ
journal article
言語
English (英語)
ISSN
2158-2742
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eISSN
2158-2750
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関連情報
DOI
https://doi.org/10.4236/ajps.2017.84051
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