神戸大学附属図書館デジタルアーカイブ
入力補助
English
カテゴリ
学内刊行物
ランキング
アクセスランキング
ダウンロードランキング
https://hdl.handle.net/20.500.14094/90005237
このアイテムのアクセス数:
7
件
(
2024-06-03
12:15 集計
)
閲覧可能ファイル
ファイル
フォーマット
サイズ
閲覧回数
説明
90005237 (fulltext)
pdf
1.13 MB
5
メタデータ
ファイル出力
メタデータID
90005237
アクセス権
open access
出版タイプ
Version of Record
タイトル
A novel Rice QTL qOPW11 Associated with Panicle Weight Affects Panicle and Plant Architecture
著者
Okada, Satoshi ; Sasaki, Megumi ; Yamasaki, Masanori
著者名
Okada, Satoshi
著者名
Sasaki, Megumi
著者ID
A1052
研究者ID
1000000432550
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=f9b7b955a91899e3520e17560c007669
著者名
Yamasaki, Masanori
山崎, 将紀
ヤマサキ, マサノリ
所属機関名
農学研究科
収録物名
Rice
巻(号)
11
ページ
53-53
出版者
SpringerOpen
刊行日
2018-09-17
公開日
2018-09-28
抄録
Background: The improvement of rice yield is a crucial global issue, but evaluating yield requires substantial efforts. Rice yield comprises the following indices: panicle number (PN), grain number per panicle (GN), 1000-grain weight, and percentage of ripened grain. To simplify measurements, we analyzed one panicle weight (OPW) as a simplified yield index that integrates GN, grain weight, and percentage of ripened grain, and verified its suitability as a proxy for GN and grain weight in particular. Results: Quantitative trait locus (QTL) analysis using 190 recombinant inbred lines derived from Koshihikari (large panicle and small grain) and Yamadanishiki (small panicle and large grain), japonica cultivars detected three QTLs on chromosomes 5 (qOPW5), 7 (qOPW7) and 11 (qOPW11). Of these, qOPW5 and qOPW11 were detected over two years. qOPW5 and qOPW7 increased OPW, and qOPW1 1 decreased it at Yamadanishiki alleles. A chromosome segment substitution line (CSSL) with a genomic segment from Yamadanishiki substituted in the Koshihikari genetic background harboring qOPW5 increased grain weight qOPW11 had the largest genetic effect of QTLs, which was validated using a CSSL. Substitution mapping using four CSSLs revealed that qOPW11 was located in the range of 1.46 Mb on chromosome 11. The CSSL harboring qOPW11 decreased primary and secondary branch numbers, culm length, and panicle length, and increased PN. Conclusions: In this study, three QTLs associated with OPW were detected. The CSSL with the novel and largest QTL, qOPW11, differed in some traits associated with both panicle and plant architecture, indicating different functions for the meristem in the vegetative versus the reproductive stages. qOPW5 coincided with an identified QTL for grain width and grain weight, suggesting that qOPW5 was affected by rice grain size. OPW can be considered a useful trait for efficient detection of QTLs associated with rice yield.
キーワード
Rice yield
QTL
Panicle weight
Panicle branch
Panicle number
カテゴリ
農学研究科
学術雑誌論文
権利
© The Author(s). 2018.
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
詳細を表示
資源タイプ
journal article
言語
English (英語)
ISSN
1939-8425
OPACで所蔵を検索
CiNiiで学外所蔵を検索
eISSN
1939-8433
OPACで所蔵を検索
CiNiiで学外所蔵を検索
関連情報
DOI
https://doi.org/10.1186/s12284-018-0246-x
ホームへ戻る