The neglected other half ‐ role of the pistil in plant heat stress responses

Wang, Yuanyuan; Impa, Somayanda M.; Sunkar, Ramanjulu; Jagadish, S. V. Krishna

doi:10.1111/pce.14067

Cited by 37 publications

(24 citation statements)

References 86 publications

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“…The presence of a QTL results from one (or several) polymorphisms in the CI region impacting the expression of genes having a role in the phenotype or the structure of the corresponding proteins. Genes differentially expressed under HS have already been identified in pollen and leaf in tomato but not in female organs, although ovaries may play an important role in HS response and fruit development (Wang et al ., 2021). We thus performed RNA‐seq in six genotypes with contrasted responses to HS, identified DEGs under HS conditions, and checked those DEGs against the CGs within pQTLs.…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity of tomato response to heat stress at the QTL and transcriptome levels

et al. 2021

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SUMMARY Tomato is a widely cultivated crop, which can grow in many environments. However, temperature above 30°C impairs its reproduction, subsequently impacting fruit yield. We assessed the impact of high‐temperature stress (HS) in two tomato experimental populations, a multi‐parental advanced generation intercross (MAGIC) population and a core‐collection (CC) of small‐fruited tomato accessions. Both populations were evaluated for 11 traits related to yield components, phenology and fruit quality in optimal and HS conditions. HS significantly impacted all traits in both populations, but a few genotypes with stable yield under HS were identified. A plasticity index was computed for each individual to measure the extent of the heat impact for each trait. Quantitative trait loci (QTL) were detected in control and HS conditions as well as for plasticity index. Linkage and genome‐wide association analyses in the MAGIC and CC populations identified a total of 98 and 166 QTLs, respectively. Taking the two populations together, 69 plasticity QTLs (pQTLs) were involved in tomato heat response for 11 traits. The transcriptome changes in the ovary of six genotypes with contrasted responses to HS were studied, and 837 genes differentially expressed according to the conditions were detected. Combined with previous transcriptome studies, these results were used to propose candidate genes for HS response QTLs.

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Section: Discussionmentioning

confidence: 99%

Genetic diversity of tomato response to heat stress at the QTL and transcriptome levels

et al. 2021

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“…Successful reproduction mainly relies on the interaction between pollen and pistil and as well as viability of the pistil and pollen following extreme heat stress. Both the pollen and pistil are very sensitive to high temperature stress (Masoomi-Aladizgeh et al, 2020;Wang et al, 2021b), however, available studies mainly focus on impact of heat wave on the pollen development. Nonetheless, recent data focuses on the sensitivity of female reproductive organ to heat stress in various crops such as wheat, maize, rice, sorghum, and tomato (Gonzalo et al, 2020;Jagadish, 2020;Lohani et al, 2020b).…”

Section: Review Writing Strategymentioning

confidence: 99%

Response and tolerance mechanism of food crops under high temperature stress: a review

et al. 2022

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High temperature stress events are critical factors inhibiting crop yield. Meanwhile, world population is growing very rapidly and will be reached up to 9 billion by 2050. To feed increasing world population, it is challenging task to increase about 70% global food productions. Food crops have significant contribution toward global food demand and food security. However, consequences from increasing heat stress events are demolishing their abilities to survive and sustain yield when subjected to extreme high temperature stress. Therefore, there is dire need to better understand response and tolerance mechanism of food crops following exposure to heat stress. Here, we aimed to provide recent update on impact of high temperature stress on crop yield of food crops, pollination, pollinators, and novel strategies for improving tolerance of food crop under high temperature stress. Importantly, development of heat-resistant transgenic food crops can grant food security through transformation of superior genes into current germplasm, which are associated with various signaling pathways as well as epigenetic regulation in response to extreme high temperature stress.

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“…The qEMF3 shifted flower opening time by 2 h earlier and improved spikelet fertility under stress environment. Similarly, studying pistil's role is another interesting inflorescence trait that has not been explored in detail to unravel molecular basis of stress tolerance (Wang et al, 2021). Rice is one of the best models to study the development of inflorescence through molecular analysis of inflorescence mutants for investigating architecture of inflorescence (Zhang and Yuan, 2014).…”

Section: Inflorescence Traitsmentioning

confidence: 99%

Physiological and Multi-Omics Approaches for Explaining Drought Stress Tolerance and Supporting Sustainable Production of Rice

et al. 2022

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Drought differs from other natural disasters in several respects, largely because of the complexity of a crop’s response to it and also because we have the least understanding of a crop’s inductive mechanism for addressing drought tolerance among all abiotic stressors. Overall, the growth and productivity of crops at a global level is now thought to be an issue that is more severe and arises more frequently due to climatic change-induced drought stress. Among the major crops, rice is a frontline staple cereal crop of the developing world and is critical to sustaining populations on a daily basis. Worldwide, studies have reported a reduction in rice productivity over the years as a consequence of drought. Plants are evolutionarily primed to withstand a substantial number of environmental cues by undergoing a wide range of changes at the molecular level, involving gene, protein and metabolite interactions to protect the growing plant. Currently, an in-depth, precise and systemic understanding of fundamental biological and cellular mechanisms activated by crop plants during stress is accomplished by an umbrella of -omics technologies, such as transcriptomics, metabolomics and proteomics. This combination of multi-omics approaches provides a comprehensive understanding of cellular dynamics during drought or other stress conditions in comparison to a single -omics approach. Thus a greater need to utilize information (big-omics data) from various molecular pathways to develop drought-resilient crop varieties for cultivation in ever-changing climatic conditions. This review article is focused on assembling current peer-reviewed published knowledge on the use of multi-omics approaches toward expediting the development of drought-tolerant rice plants for sustainable rice production and realizing global food security.

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The neglected other half ‐ role of the pistil in plant heat stress responses

Cited by 37 publications

References 86 publications

Genetic diversity of tomato response to heat stress at the QTL and transcriptome levels

Genetic diversity of tomato response to heat stress at the QTL and transcriptome levels

Response and tolerance mechanism of food crops under high temperature stress: a review

Physiological and Multi-Omics Approaches for Explaining Drought Stress Tolerance and Supporting Sustainable Production of Rice

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