Key Laboratory of Crop Genetic Resources and Genetic Improvement, Ministry of Education, Institute of Rice Research, Sichuan Agricultural University, Chengdu 611130, China.
Int J Mol Sci. 2019 Apr 1;20(7):1613. doi: 10.3390/ijms20071613.
Panicle degeneration, also known as panicle abortion, is a serious defect and causes heavy losses to reproductive yield in cereals. Several mutants have been reported to display the phenotype of spikelet abortion in rice. Recent findings have resulted in significant breakthroughs, but comprehensive understanding about the molecular pathways and physiological basis of panicle degeneration still remain a dilemma. In this review, we have summarized all the responsible genes and mechanisms underlying the panicle development with a special focus on degeneration. Here, we hypothesized a model by using knowledge and coherent logic in order to understand the molecular regulation of panicle degeneration. In addition to this, we included all the previous discoveries, schools of thoughts, ancient working theories, and crosstalk of phytohormones and provided new insights for future studies.
小穗退化，也称为小穗败育，是一种严重的缺陷，会导致谷物生殖产量的重大损失。已有报道称，几种突变体在水稻中表现出小穗败育的表型。最近的研究结果取得了重大突破，但对小穗退化的分子途径和生理基础的全面了解仍然是一个难题。在这篇综述中，我们总结了所有与小穗发育有关的负责基因和机制，特别关注退化。在这里，我们使用知识和连贯的逻辑提出了一个模型，以便理解小穗退化的分子调控。除此之外，我们还包括了所有以前的发现、思想流派、古老的工作理论以及植物激素的串扰，并为未来的研究提供了新的见解。
