Natural variation in a CENTRORADIALIS homolog contributed to cluster fruiting and early maturity in cotton.
Natural variation in a CENTRORADIALIS homolog contributed to cluster fruiting and early maturity in cotton.
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CENTRORADIALIS同源物的自然变异有助于棉花的丛生结果和早熟
DOI：
10.1186/s12870-018-1518-8
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发表时间：
2018-11-20
影响因子：
5.3
通讯作者：
Zhang Z
中科院分区：
文献类型：
--
作者：
Liu D;Teng Z;Kong J;Liu X;Wang W;Zhang X;Zhai T;Deng X;Wang J;Zeng J;Xiao Y;Guo K;Zhang J;Liu D;Wang W;Zhang Z
背景：植物结构和营养-生殖转换对作物的农艺成功具有重要影响，但棉花（Gossypium spp.）结果：我们在GoCEN-DT中发现了4个与丛结果（cl）和早熟相关的自然突变。原位杂交结果表明，GhCEN基因在棉花茎尖分生组织和腋芽中优先表达。组成型GhCEN-Dt过表达抑制棉花营养顶端向生殖枝的过渡。沉默GoCEN导致早期开花和有限生长，并且在四倍体中导致主茎终止于花芽，这是一种新的表型，其证实了多倍体亚基因组的共适应，并提出了新的研究和/或作物改良方法。在适应高纬度、无霜期短的棉花中，自然cl变异丰富，表明GoCEN突变体已被强烈选择以早熟。结论：我们表明棉花基因GoCEN-Dt（金鱼草的同源物）负责有限的生长习惯和丛生结果。深入了解分支和花分化的遗传控制为开发具有适合机械收获的植物结构的棉花和其他作物的早熟品种提供了新的方法。
Background:Plant architecture and the vegetative-reproductive transition have major impacts on the agronomic success of crop plants, but genetic mechanisms underlying these traits in cotton (Gossypium spp.) have not been identified.Results:We identify four natural mutations in GoCEN-Dtassociated with cluster fruiting (cl) and early maturity. The situ hybridization shows that GhCEN is preferentially expressed in cotton shoot apical meristems (SAM) of the main stem and axillary buds. Constitutive GhCEN-Dt overexpression suppresses the transition of the cotton vegetative apex to a reproductive shoot. Silencing GoCEN leads to early flowering and determinate growth, and in tetraploids causes the main stem to terminate in a floral bud, a novel phenotype that exemplifies co-adaptation of polyploid subgenomes and suggests new research and/or crop improvement approaches. Natural cl variations are enriched in cottons adapted to high latitudes with short frost-free periods, indicating that mutants of GoCEN have been strongly selected for early maturity.Conclusion:We show that the cotton gene GoCEN-Dt, a homolog of Antirrhinum CENTRORADIALIS, is responsible for determinate growth habit and cluster fruiting. Insight into the genetic control of branch and flower differentiation offers new approaches to develop early maturing cultivars of cotton and other crops with plant architecture appropriate for mechanical harvesting.
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影响因子：
14.9
作者：
Kanehisa M;Araki M;Goto S;Hattori M;Hirakawa M;Itoh M;Katayama T;Kawashima S;Okuda S;Tokimatsu T;Yamanishi Y
通讯作者：
Yamanishi Y
影响因子：
4.4
作者：
Liu D;Zhang J;Liu X;Wang W;Liu D;Teng Z;Fang X;Tan Z;Tang S;Yang J;Zhong J;Zhang Z
通讯作者：
Zhang Z
影响因子：
7.2
作者：
Huang, Nien-Chen;Jane, Wann-Neng;Yu, Tien-Shin
通讯作者：
Yu, Tien-Shin
影响因子：
4.2
作者：
Fernandez-Nohales, P.;Domenech, M. J.;Madueno, F.
通讯作者：
Madueno, F.
影响因子：
9.4
作者：
McGarry, Roisin C.;Prewitt, Sarah F.;Ayre, Brian G.
通讯作者：
Ayre, Brian G.