Molecular Network for Regulation of Ovule Number in Plants.
Molecular Network for Regulation of Ovule Number in Plants.
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DOI：
10.3390/ijms222312965
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发表时间：
2021-11-30
影响因子：
5.6
通讯作者：
Wang H
中科院分区：
文献类型：
--
作者：
Qadir M;Wang X;Shah SRU;Zhou XR;Shi J;Wang H
在有种子的植物中，胚珠（“小卵”）是雌蕊内受精后发育成种子的器官。位于花内部的雌蕊变成果实。子房中胚珠的数量决定了植物单果种子数量的上限或潜力，极大地影响着最终的种子产量。胚珠数是植物进化的重要适应性特征，也是作物改良的重要农艺性状。因此，了解胚珠数量调控的机制和途径成为植物科学研究的一个重要方面。本文综述了胚珠数调控因子及其调控机制和途径。特别是构建了一个以植物激素为中心，转录因子、酶、其他蛋白和微rna为辅的完整的调控胚珠数的分子网络。其中，AUX、BR和CK对胚珠数有正向调节作用，而GA对胚珠数有负向调节作用。有趣的是，许多胚珠数调节因子在几个植物分类群中具有保守的功能，这应该是通过育种或基因编辑进行遗传改良的目标。迄今为止发现的许多胚珠数量调节因子参与了多种生物过程，如胚珠原基形成、胚珠起始、图案和形态发生。讨论了胚珠数与相关性状，特别是雌蕊/果实大小、胚珠育性和最终种子数的关系，以及今后的研究问题。综上所述，本文综述了目前关于胚珠数调控的研究进展，代表了对胚珠数调控的更全面、更深入的认识。
In seed-bearing plants, the ovule (“small egg”) is the organ within the gynoecium that develops into a seed after fertilization. The gynoecium located in the inner compartment of the flower turns into a fruit. The number of ovules in the ovary determines the upper limit or the potential of seed number per fruit in plants, greatly affecting the final seed yield. Ovule number is an important adaptive characteristic for plant evolution and an agronomic trait for crop improvement. Therefore, understanding the mechanism and pathways of ovule number regulation becomes a significant research aspect in plant science. This review summarizes the ovule number regulators and their regulatory mechanisms and pathways. Specially, an integrated molecular network for ovule number regulation is constructed, in which phytohormones played a central role, followed by transcription factors, enzymes, other protein and micro-RNA. Of them, AUX, BR and CK are positive regulator of ovule number, whereas GA acts negatively on it. Interestingly, many ovule number regulators have conserved functions across several plant taxa, which should be the targets of genetic improvement via breeding or gene editing. Many ovule number regulators identified to date are involved in the diverse biological process, such as ovule primordia formation, ovule initiation, patterning, and morphogenesis. The relations between ovule number and related characteristics/traits especially of gynoecium/fruit size, ovule fertility, and final seed number, as well as upcoming research questions, are also discussed. In summary, this review provides a general overview of the present finding in ovule number regulation, which represents a more comprehensive and in-depth cognition on it.
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影响因子：
9.2
作者：
Cucinotta, Mara;Cavalleri, Alex;Colombo, Lucia
通讯作者：
Colombo, Lucia
影响因子：
7.2
作者：
Barro-Trastoy, Daniela;Carrera, Esther;Perez-Amador, Miguel A.
通讯作者：
Perez-Amador, Miguel A.
DOI：
10.1111/tpj.13062
发表时间：
2015-12
期刊：
The Plant journal : for cell and molecular biology
影响因子：
--
作者：
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通讯作者：
Doonan JH
影响因子：
11.6
作者：
Brambilla, Vittoria;Battaglia, Raffaella;Colombo, Lucia
通讯作者：
Colombo, Lucia
AtPER1 通过抑制拟南芥种子中 ABA 分解代谢和 GA 生物合成来增强初级种子休眠并减少种子萌发
影响因子：
7.2
作者：
Chen, Huhui;Ruan, Jiuxiao;Huang, Shangzhi
通讯作者：
Huang, Shangzhi