Division of Plant Science and Technology, College of Agriculture Food and Natural Resources and Interdisciplinary Plant Group, University of Missouri, Columbia, Missouri, 65211, USA.
Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, 65211, USA.
Plant J. 2023 Nov;116(4):1064-1080. doi: 10.1111/tpj.16222. Epub 2023 Apr 14.
Global warming and climate change are driving an alarming increase in the frequency and intensity of extreme climate events, such as droughts, heat waves, and their combination, inflicting heavy losses to agricultural production. Recent studies revealed that the transcriptomic responses of different crops to water deficit (WD) or heat stress (HS) are very different from that to a combination of WD + HS. In addition, it was found that the effects of WD, HS, and WD + HS are significantly more devastating when these stresses occur during the reproductive growth phase of crops, compared to vegetative growth. As the molecular responses of different reproductive and vegetative tissues of plants to WD, HS, or WD + HS could be different from each other and these differences could impact many current and future attempts to enhance the resilience of crops to climate change through breeding and/or engineering, we conducted a transcriptomic analysis of different soybean (Glycine max) tissues to WD, HS, and WD + HS. Here we present a reference transcriptomic dataset that includes the response of soybean leaf, pod, anther, stigma, ovary, and sepal to WD, HS, and WD + HS conditions. Mining this dataset for the expression pattern of different stress response transcripts revealed that each tissue had a unique transcriptomic response to each of the different stress conditions. This finding is important as it suggests that enhancing the overall resilience of crops to climate change could require a coordinated approach that simultaneously alters the expression of different groups of transcripts in different tissues in a stress-specific manner.
全球变暖与气候变化导致极端气候事件（如干旱、热浪及其组合）的发生频率和强度急剧增加，给农业生产造成了巨大损失。最近的研究表明，不同作物对水分亏缺（WD）或热胁迫（HS）的转录组响应与 WD+HS 的响应非常不同。此外，还发现与营养生长相比，这些胁迫在作物生殖生长阶段发生时，WD、HS 和 WD+HS 的影响要严重得多。由于植物不同生殖组织和营养组织对 WD、HS 或 WD+HS 的分子响应可能彼此不同，这些差异可能会影响许多当前和未来通过育种和/或工程提高作物对气候变化适应能力的尝试，我们对不同大豆（Glycine max）组织对 WD、HS 和 WD+HS 的反应进行了转录组分析。在此，我们提供了一个参考转录组数据集，其中包含大豆叶片、豆荚、花药、柱头、子房和萼片对 WD、HS 和 WD+HS 条件的响应。从该数据集中挖掘不同胁迫响应转录本的表达模式表明，每个组织对不同胁迫条件都有独特的转录组响应。这一发现很重要，因为它表明增强作物对气候变化的整体适应能力可能需要一种协调的方法，以特定的方式同时改变不同组织中不同组的转录本的表达。
