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タイトル: The effects of the photoperiod-insensitive alleles, se13, hd1 and ghd7, on yield components in rice.
著者: Xu, Quan
Saito, Hiroki
Hirose, Ikuo
Katsura, Keisuke  kyouindb  KAKEN_id
Yoshitake, Yoshihiro  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0003-0597-5651 (unconfirmed)
Yokoo, Takayuki
Tsukiyama, Takuji  KAKEN_id
Teraishi, Masayoshi  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-6768-8052 (unconfirmed)
Tanisaka, Takatoshi
Okumoto, Yutaka  KAKEN_id
著者名の別形: 奥本, 裕
キーワード: Flowering time
Grain yield
Photoperiod-insensitive allele
Pleiotropic effect
Rice
発行日: Apr-2014
出版者: Springer Netherlands
誌名: Molecular breeding
巻: 33
号: 4
開始ページ: 813
終了ページ: 819
抄録: Flowering time is closely associated with grain yield in rice (Oryza sativa L.). In temperate regions, seasonal changes in day length (known as the photoperiod) are an important environmental cue for floral initiation. The timing of flowering is important not only for successful reproduction, but also for determining the ideal balance between vegetative growth and reproductive growth duration. Recent molecular genetics studies have revealed key flowering time genes responsible for photoperiod sensitivity. In this study, we investigated the effect of three recessive photoperiod-insensitive alleles, se13, hd1 and ghd7, on yield components in rice under Ehd1-deficient genetic background conditions to ensure vegetative growth of each line. We found that se13-bearing plants had fewer panicles, hd1-bearing plants showed decreased grain-filling percentage, and ghd7-bearing plants appeared to have fewer grains per panicle and fewer secondary branches. Our results indicate that the pleiotropic effects of photoperiod-insensitive genes on yield components are independent of short vegetative growth. This will provide critical information which can be used to create photoperiod-insensitive varieties that can be adapted to a wide range of latitudes.
著作権等: © The Author(s) 2013. This article is published with open access at Springerlink.com
URI: http://hdl.handle.net/2433/187110
DOI(出版社版): 10.1007/s11032-013-9994-x
PubMed ID: 24659905
出現コレクション:学術雑誌掲載論文等

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