Clarification of the mechanisms of growth response to cultivation methods in rice plants with genome information

利用基因组信息阐明水稻植株生长对栽培方法的反应机制

• 批准号: 16380012
• 负责人: GOTO Yusuke
• 金额: $ 9.92万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16380012/
• 关键词: genotype-environment interaction; rice; recombinant inbred linens; tiller number; yield components; irrigation regimes; compensation; QTL; 最高茎数; 一穂籾数; 穂数; 分げつ出現率

To analyze the effect of deep water irrigation on tiller number (TN), culm thickness (CT) and spikelet number per panicle (SPP) at QTL level, TN, CT, grain yield (YD) and its components of backcross inbred population from the cross between Akihikari (temperate japonica) and IRAT109 (tropical japonica) were investigated under two different water regimes (the standard irrigation and the deep-water irrigation) at the experimental farm of the Miyagi University in 2004 and 2005.Two-way ANOVA revealed significant genotype-by-irrigation interactions for almost all traits. Among QTLs for TN and panicle number (PN), some QTLs interacted with irrigation (QTLs with great difference in LOD score between two different water regimes or high LOD score in relative parameter [the ratio of the parameters under the standard irrigation and the deep-water irrigation]).In addition, QTLs for CT and SPP were co-localized with them and had an opposite effect in relative parameter. This suggests the causal relationship between tiller suppression, enlargement of CT and increment of SPP by deep water irrigation. One QTL for CT interacting with irrigation was not corresponded to any QTLs for TN, suggesting the mechanism that deep water irrigation enlarges CT directly (=not only through tiller suppression) also exists. Examining the yield formation at QTL level, QTL for PN on chromosome 12 corresponded to large-effect QTL for YD in a year, suggesting that PN strongly regulates YD at QTL level. But its effect on YD was cancelled out by the opposite effect of SPP, thus QTL for YD is not detected in the other year. The unsuitability of compensatory mechanism at QTL level between PN and SPP determines the expression pattern of QTL for YD.

分析深水灌溉对tiller数量（TN），CULM厚度（CT）和QTL水平下的尖峰数（spp）的影响在2004年和2005年，在宫城大学的实验农场，Akihikari（温带Japonica）和IRAT109（热带japonica）之间的交叉进行了研究。几乎所有特征的基因型相互作用。在TN和圆锥花序数（PN）的QTL中，一些QTL与灌溉相互作用（QTL在两个不同的水状态之间的LOD评分差异很大或相对参数的高LOD评分之间[标准灌溉和深度参数的比率]水灌溉]）。此外，将CT和SPP的QTL与它们共定位，并在相对参数中具有相反的效果。这表明通过深水灌溉对耕种者的抑制，CT扩大和SPP的增量之间的因果关系。 CT与灌溉相互作用的一个QTL与TN的任何QTL相互作用，这表明深水灌溉直接扩大CT的机制（不仅=不仅是通过分er抑制）也存在。检查QTL水平下的产率形成，在12染色体上的Pn的QTL对应于一年中YD的大效应QTL，这表明PN在QTL水平下强烈调节YD。但是，其对YD的影响被SPP的相反效应取消，因此前一年未检测到YD的QTL。 PN和SPP之间QTL水平的代码机制的不合适性决定了YD的QTL的表达模式。

项目成果

イネF1雑種の分げつ性の解析

杂交水稻F1代分蘖性状分析

• 发表时间: 2005
• 期刊: 日本作物学会記事 74巻・別2号
• 作者: Suzuki;G.;平嶋奈津子;内山美奈;神山康夫;山崎耕宇他監修;石橋俊明;石橋俊明;T.Ishibashi;T.Ishibashi;石橋俊明;石橋俊明;後藤雄佐;松井瑞穂;石橋俊明
• 通讯作者: 石橋俊明

Yield×irrigation interaction in rice at the QTL level.

水稻产量×灌溉在QTL水平上的相互作用。

• 发表时间: 2007
• 期刊: Japanese Journal of Crop Science Vol.76(Extra issue 1)
• 作者: Suzuki;G.;平嶋奈津子;内山美奈;神山康夫;山崎耕宇他監修;石橋俊明;石橋俊明;T.Ishibashi;T.Ishibashi
• 通讯作者: T.Ishibashi

QTLからみたイネ分げつ動態の遺伝子型×水管理交互作用

QTL视角下基因型×水分管理交互作用对水​​稻分蘖动态的影响

• 发表时间: 2007
• 期刊: 日本作物学会記事 76巻・別1号
• 作者: Suzuki;G.;平嶋奈津子;内山美奈;神山康夫;山崎耕宇他監修;石橋俊明
• 通讯作者: 石橋俊明

Tillering behavior of F1 hibrids in rice.

水稻F1杂种的分蘖行为。

• 发表时间: 2005
• 期刊: Japanese Journal of Crop Science Vol.74(Extra issue 2)
• 作者: Suzuki;G.;平嶋奈津子;内山美奈;神山康夫;山崎耕宇他監修;石橋俊明;石橋俊明;T.Ishibashi;T.Ishibashi;石橋俊明;石橋俊明;後藤雄佐;松井瑞穂;石橋俊明;Y.Goto;M.Matsui;T.Ishibashi
• 通讯作者: T.Ishibashi

Tillering response of rice to irrigation regimes ; a QTL analysis.

水稻分蘖对灌溉制度的反应；

• 发表时间: 2005
• 期刊: Japanese Journal of Crop Science Vol.74(Extra issue 1)
• 作者: Suzuki;G.;平嶋奈津子;内山美奈;神山康夫;山崎耕宇他監修;石橋俊明;石橋俊明;T.Ishibashi;T.Ishibashi;石橋俊明;石橋俊明;後藤雄佐;松井瑞穂;石橋俊明;Y.Goto
• 通讯作者: Y.Goto