Effects of maize organ-specific drought stress response on yields from transcriptome analysis

BMC Plant Biology
Baomei WangZhaoxia Li

Abstract

Drought is a serious causal factor of reduced crop yields than any other abiotic stresses. As one of the most widely distributed crops, maize plants frequently suffer from drought stress, which causes great losses in the final kernel yield. Drought stress response in plants showed tissue- and developmental stage-specific characteristics. In this study, the ears at the V9 stage, kernels and ear leaf at the 5DAP (days after pollination) stage of maize were used for morphological, physiological and comparative transcriptomics analysis to understand the different features of "sink" or "source" organs and the effects on kernel yield under drought stress conditions. The ABA-, NAC-mediate signaling pathway, osmotic protective substance synthesis and protein folding response were identified as common drought stress response in the three organs. Tissue-specific drought stress responses and the regulators were identified, they were highly correlated with growth, physiological adaptation and yield loss under drought stress. For ears, drought stress inhibited ear elongation, led to the abnormal differentiation of the paired spikelet, and auxin signaling involved in the regulation of cell division and growth and primordium development chang...Continue Reading

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Citations

Jan 23, 2020·Journal of Experimental Botany·Marieke Dubois, Dirk Inzé
Oct 25, 2020·The Plant Journal : for Cell and Molecular Biology·Dae Kwan Ko, Federica Brandizzi
Jun 18, 2021·PloS One·Eunsoo ChoeMartin M Williams
Aug 13, 2021·Frontiers in Plant Science·Yueqin ZhengYuanyuan Song
Oct 26, 2021·The Plant Journal : for Cell and Molecular Biology·Rubén Tenorio BerríoMarieke Dubois

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Methods Mentioned

BETA
environmental stresses
protein folding
scanning electron microscopy
phosphotransferase
RNA-seq
transgenic
electrophoresis
PCR

Software Mentioned

Maize Oligo Array
Illumina
PromZea

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