BEAK-SHAPED GRAIN 1/TRIANGULAR HULL 1, a DUF640 gene, is associated with grain shape, size and weight in rice
BEAK-SHAPED GRAIN 1/TRIANGULAR HULL 1, a DUF640 gene, is associated with grain shape, size and weight in rice
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BEAK-SHAPED GRAIN 1/TRIANGULAR HULL 1 是一种 DUF640 基因，与水稻的谷粒形状、大小和重量相关
DOI：
10.1007/s11427-013-4449-5
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发表时间：
2013-03
期刊：
影响因子：
--
通讯作者：
张小明
中科院分区：
文献类型：
--
作者：
张小明
谷粒的形状和大小决定了谷粒的重量，从而决定了作物的产量。然而，控制晶粒形状和尺寸的分子机制在很大程度上仍然未知。在这里，我们分离到一个水稻突变体，喙形粒1（bsg1），它产生喙形的宽度，厚度和重量减少与一个松散的外稃和内稃，不能紧密关闭。淀粉颗粒也不规则地包裹在bsg1籽粒中。与外稃和内稃形状一致，thesebsg1组织的外部薄壁细胞层发育的细胞较少，大小减小。图位克隆显示BSG 1编码一个功能未知的DUF640结构域蛋白TRIANGULAR船体1。定量PCR和GUS融合报告基因分析表明，BSG 1主要在幼穗和伸长茎中表达。BSG 1突变影响了可能参与细胞周期和水稻籽粒大小重要调节因子GW2的基因表达。我们的研究结果表明，BSG 1可能通过改变谷物船体中的细胞分裂和膨胀来决定谷物的形状和大小。
Grain shape and size both determine grain weight and therefore crop yield. However, the molecular mechanisms controlling grain shape and size are still largely unknown. Here, we isolated a rice mutant,beak-shaped grain1(bsg1), which produced beak-shaped grains of decreased width, thickness and weight with a loosely interlocked lemma and palea that were unable to close tightly. Starch granules were also irregularly packaged in thebsg1grains. Consistent with the lemma and palea shapes, the outer parenchyma cell layers of thesebsg1tissues developed fewer cells with decreased size. Map-based cloning revealed thatBSG1encoded a DUF640 domain protein, TRIANGULAR HULL 1, of unknown function. Quantitative PCR and GUS fusion reporter assays showed thatBSG1was expressed mainly in the young panicle and elongating stem. TheBSG1mutation affected the expression of genes potentially involved in the cell cycle andGW2, an important regulator of grain size in rice. Our results suggest thatBSG1determines grain shape and size probably by modifying cell division and expansion in the grain hull.
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影响因子：
--
作者：
Yamaguchi T;Hirano HY
通讯作者：
Hirano HY
影响因子：
7.4
作者：
D. Sorrell;M. Menges;J. M. Healy;Y. Deveaux;C. Amano;Ya Su;Hirofumi;Nakagami;A. Shinmyō;J. Doonan;M. Sekine;J. Murray
通讯作者：
D. Sorrell;M. Menges;J. M. Healy;Y. Deveaux;C. Amano;Ya Su;Hirofumi;Nakagami;A. Shinmyō;J. Doonan;M. Sekine;J. Murray
影响因子：
7.2
作者：
Horigome, Ayako;Nagasawa, Nobuhiro;Nagato, Yasuo
通讯作者：
Nagato, Yasuo
DOI：
10.1105/tpc.010087
发表时间：
2001-07
期刊：
The Plant Cell Online
影响因子：
--
作者：
L. De Veylder;T. Beeckman;G. Beemster;Luc Krols;Franky R. G. Terras;I. Landrieu;E. Van Der Schueren
通讯作者：
L. De Veylder;T. Beeckman;G. Beemster;Luc Krols;Franky R. G. Terras;I. Landrieu;E. Van Der Schueren
GS5 的自然变异在调节水稻籽粒大小和产量方面发挥着重要作用
影响因子：
30.8
作者：
Li, Yibo;Fan, Chuchuan;Zhang, Qifa
通讯作者：
Zhang, Qifa