<scp><i>INDITTO2</i></scp> transposon conveys auxin‐mediated <scp><i>DRO1</i></scp> transcription for rice drought avoidance

Zhao, Yiting; Li-xia, WU; Fu, Qijing; Wang, Dong; Li, Jing; Yao, Baolin; Yu, Shaohua; Jiang, Li; Qian, Jie; Zhou, Xuan; Han, Li; Zhao, Shuanglu; Ma, Canrong; Zhang, Yanfang; Luo, Chongyu; Qian, Dong; Li, Saijie; Zhang, Lina; Jiang, Xi; Li, Youchun; Luo, Hao; Li, Kuixiu; Yang, Jing; Luo, Qiong; Li, Lichi; Song, Peng; Huang, Huichuan; Zuo, Zhili; Liu, Changning; Wang, Lei; Li, Chengyun; He, Xiahong; Friml, Jiřı́; Du, Yunlong

doi:10.1111/pce.14029

Cited by 22 publications

(11 citation statements)

References 45 publications

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“…As for genes regulating the maintenance of root growth, DEEPER ROOTING 1 ( DRO1 ), a quantitative trait locus controlling root growth angle, has been identified and mainly studied in rice for its role in forming deeper roots under drought conditions [ 80 , 81 ]. The alleles of DRO1 and its homologs can increase the gravitropism of rice roots, which contributes to drought stress avoidance [ 82 , 83 ]. Even though the whole picture of DRO1 regulation in root formation is not clear at present, it possibly contributes to the establishment of an auxin gradient in the root tips since it is negatively regulated by auxin [ 84 , 85 ].…”

Section: Crop Root Growth and Architecture In Response To Drought Stressmentioning

confidence: 99%

Crop Root Responses to Drought Stress: Molecular Mechanisms, Nutrient Regulations, and Interactions with Microorganisms in the Rhizosphere

Kang

Peng

2022

IJMS

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Roots play important roles in determining crop development under drought. Under such conditions, the molecular mechanisms underlying key responses and interactions with the rhizosphere in crop roots remain limited compared with model species such as Arabidopsis. This article reviews the molecular mechanisms of the morphological, physiological, and metabolic responses to drought stress in typical crop roots, along with the regulation of soil nutrients and microorganisms to these responses. Firstly, we summarize how root growth and architecture are regulated by essential genes and metabolic processes under water-deficit conditions. Secondly, the functions of the fundamental plant hormone, abscisic acid, on regulating crop root growth under drought are highlighted. Moreover, we discuss how the responses of crop roots to altered water status are impacted by nutrients, and vice versa. Finally, this article explores current knowledge of the feedback between plant and soil microbial responses to drought and the manipulation of rhizosphere microbes for improving the resilience of crop production to water stress. Through these insights, we conclude that to gain a more comprehensive understanding of drought adaption mechanisms in crop roots, future studies should have a network view, linking key responses of roots with environmental factors.

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Section: Crop Root Growth and Architecture In Response To Drought Stressmentioning

confidence: 99%

Crop Root Responses to Drought Stress: Molecular Mechanisms, Nutrient Regulations, and Interactions with Microorganisms in the Rhizosphere

Kang

Peng

2022

IJMS

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“…Given that root growth and architecture strongly depend on auxin and its asymmetric distribution (Zhao et al., 2021), we next tested the impact of the SA treatment on auxin levels. We measured auxin levels in the roots of the LTH and Nipponbare lines treated with 100 μ m SA after gravity stimulation (Figure S6).…”

Section: Resultsmentioning

confidence: 99%

Salicylic acid inhibits rice endocytic protein trafficking mediated by OsPIN3t and clathrin to affect root growth

et al. 2023

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Salicylic acid (SA) plays important roles in different aspects of plant development, including root growth, where auxin is also a major player by means of its asymmetric distribution. However, the mechanism underlying the effect of SA on the development of rice roots remains poorly understood. Here, we show that SA inhibits rice root growth by interfering with auxin transport associated with the OsPIN3t-and clathrinmediated gene regulatory network (GRN). SA inhibits root growth as well as Brefeldin A-sensitive trafficking through a non-canonical SA signaling mechanism. Transcriptome analysis of rice seedlings treated with SA revealed that the OsPIN3t auxin transporter is at the center of a GRN involving the coat protein clathrin. The root growth and endocytic trafficking in both the pin3t and clathrin heavy chain mutants were SA insensitivity. SA inhibitory effect on the endocytosis of OsPIN3t was dependent on clathrin; however, the root growth and endocytic trafficking mediated by tyrphostin A23 (TyrA23) were independent of the pin3t mutant under SA treatment. These data reveal that SA affects rice root growth through the convergence of transcriptional and non-SA signaling mechanisms involving OsPIN3t-mediated auxin transport and clathrinmediated trafficking as key components.

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“…Selective sweep regions were identified by combining the matrix of F ST , and the matrix of ROD (1Àp UR /p LR ) regions ranked in the top 5% of the values in two of the methods was considered the final selective sweeps. GO enrichment and KEGG pathway enrichment analyses were performed using the cluster-Profiler package (Wu et al, 2021).…”

Section: Selective Sweep Detectionmentioning

confidence: 99%

“…Research has shown that UR has a stronger water retention capacity because of smaller cells and greater stomatal resistance in leaves compared to LR (Wu et al, 2022). Before the onset of drought, a deep-thick root system architecture and denser lateral roots are considered major components of drought avoidance and aerobic environment adaptability in UR, enabling UR to extract water from deep soil layers (Gowda et al, 2011;Lyu et al, 2013;Uga et al, 2011Uga et al, , 2013Zhao et al, 2018Zhao et al, , 2021. UR This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.…”

Section: Introductionmentioning

confidence: 99%

Upland rice genomic signatures of adaptation to drought resistance and navigation to molecular design breeding

Wang,

Jiang,

Zhang

et al. 2023

Plant Biotechnology Journal

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SummaryUpland rice is a distinctive drought‐aerobic ecotype of cultivated rice highly resistant to drought stress. However, the genetic and genomic basis for the drought‐aerobic adaptation of upland rice remains largely unclear due to the lack of genomic resources. In this study, we identified 25 typical upland rice accessions and assembled a high‐quality genome of one of the typical upland rice varieties, IRAT109, comprising 384 Mb with a contig N50 of 19.6 Mb. Phylogenetic analysis revealed upland and lowland rice have distinct ecotype differentiation within the japonica subgroup. Comparative genomic analyses revealed that adaptive differentiation of lowland and upland rice is likely attributable to the natural variation of many genes in promoter regions, formation of specific genes in upland rice, and expansion of gene families. We revealed differentiated gene expression patterns in the leaves and roots of the two ecotypes and found that lignin synthesis mediated by the phenylpropane pathway plays an important role in the adaptive differentiation of upland and lowland rice. We identified 28 selective sweeps that occurred during domestication and validated that the qRT9 gene in selective regions can positively regulate drought resistance in rice. Eighty key genes closely associated with drought resistance were appraised for their appreciable potential in drought resistance breeding. Our study enhances the understanding of the adaptation of upland rice and provides a genome navigation map of drought resistance breeding, which will facilitate the breeding of drought‐resistant rice and the “blue revolution” in agriculture.

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INDITTO2 transposon conveys auxin‐mediated DRO1 transcription for rice drought avoidance

Cited by 22 publications

References 45 publications

Crop Root Responses to Drought Stress: Molecular Mechanisms, Nutrient Regulations, and Interactions with Microorganisms in the Rhizosphere

Crop Root Responses to Drought Stress: Molecular Mechanisms, Nutrient Regulations, and Interactions with Microorganisms in the Rhizosphere

Salicylic acid inhibits rice endocytic protein trafficking mediated by OsPIN3t and clathrin to affect root growth

Upland rice genomic signatures of adaptation to drought resistance and navigation to molecular design breeding

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