High‐temperature stress in crops: male sterility, yield loss and potential remedy approaches

Khan, Aamir Hamid; Ling, Min; Ma, Yizan; Zeeshan, Muhammad; Jin, Shuangxia; Zhang, Xianlong

doi:10.1111/pbi.13946

Cited by 20 publications

(7 citation statements)

References 212 publications

(329 reference statements)

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“…gametophyte development (Ding et al, 2017). Auxin is accumulated excessively under high-temperature stress, which damages hormone homeostasis and causes pollen abortion and male sterility (Khan et al, 2022b). According to our results, indole-3acetic acid (Com_670_pos) was detected to be upregulated in hightemperature stress.…”

Section: Discussionmentioning

confidence: 71%

Responses of differential metabolites and pathways to high temperature in cucumber anther

et al. 2023

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Cucumber is one of the most important vegetable crops, which is widely planted all over the world. Cucumber always suffers from high-temperature stress in South China in summer. In this study, liquid chromatography–mass spectrometry (LC-MS) analysis was used to study the differential metabolites of cucumber anther between high-temperature (HT) stress and normal condition (CK). After HT, the pollen fertility was significantly reduced, and abnormal anther structures were observed by the paraffin section. In addition, the metabolomics analysis results showed that a total of 125 differential metabolites were identified after HT, consisting of 99 significantly upregulated and 26 significantly downregulated metabolites. Among these differential metabolites, a total of 26 related metabolic pathways were found, and four pathways showed significant differences, namely, porphyrin and chlorophyll metabolism; plant hormone signal transduction; amino sugar and nucleotide sugar metabolism; and glycine, serine, and threonine metabolism. In addition, pollen fertility was decreased by altering the metabolites of plant hormone signal transduction and amino acid and sugar metabolism pathway under HT. These results provide a comprehensive understanding of the metabolic changes in cucumber anther under HT.

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Section: Discussionmentioning

confidence: 71%

Responses of differential metabolites and pathways to high temperature in cucumber anther

et al. 2023

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“…The deployment of the HEB-25 population enabled alleles at these two loci to be fully explored in the context of speed breeding. Our findings will be particularly important for the deployment of SB in crop improvement programs that focus on the incorporation of new sources of genetic variation from wild relatives (Gramazio et al, 2021; Hao et al, 2020; Hernandez et al, 2020; Khan et al, 2023; Zhang et al, 2023). Data from this study predict that the deployment of this technology to accelerate generation time in breeding, will select against specific alleles in the genomic regions on chromosomes 1 and 2 where PPD-H1 and ELF3 are located, if late flowering genotypes will not be advanced to the next generation.…”

Section: Discussionmentioning

confidence: 95%

“…While studies on speed breeding in cereals have shown that plant development can be accelerated under these conditions (Cha et al, 2022; Watson et al, 2018), experiments have mainly focussed on modern or elite germplasm. As introgression breeding is becoming a valuable tool for gaining access to wild genetic diversity that can help crops adapt to climate change (Gramazio et al, 2021; Hao et al, 2020; Hernandez et al, 2020; Khan et al, 2023; Zhang et al, 2023). Therefore, a better understanding of the genetics of speed breeding would help pre-breeders develop protocols that are effective in these programs.…”

Section: Introductionmentioning

confidence: 99%

Investigating the genetic control of plant development under speed breeding conditions

Rossi,

Powell,

Mackay

et al. 2023

Preprint

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Speed breeding is a powerful tool to accelerate breeding and research programmes by shortening generation time and has been widely adopted for a range of crop species. Despite its success and growing popularity with breeders the genetic basis of plant development under speed breeding remains unknown. In this study, we explored how genotypes respond in terms of developmental advancement under different photoperiod regimes in the context of speed breeding. A subset of the barley HEB-25 Nested Association Mapping population was evaluated for days to heading and maturity under two contrasting photoperiod conditions: 1) Speed Breeding (SB) consisting of 22 hours of light and 2 hours of darkness), and 2) Normal Breeding (NB) consisting of 16 hours of light and 8 hours of darkness. GWAS revealed that developmental responses under both conditions were largely controlled by two loci: PPDH-1 and ELF3. Allelic variants at these genes determine whether plants display early flowering and maturity under both NB and SB. At key QTL regions, domesticated alleles were associated with late flowering and maturity in NB and early flowering and maturity in SB, whereas wild alleles were associated with early flowering under both conditions. We hypothesise that this may be related to the dark dependent repression of PPD-H1 by ELF3 which might be more prominent in NB conditions. Furthermore, by comparing development under two contrasting photoperiod regimes, we were able to derive an estimate of plasticity for the two traits. Interestingly, plasticity in development was largely attributed to allelic variation at ELF3. Our results have important implications for our understanding and optimisation of speed breeding protocols particularly when incorporating genetics from wild relatives into breeding programmes and the design of breeding programmes to support the delivery of climate resilient crops.

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“…Moreover, temperature and rainfall are considered to be important climatic factors affecting plant growth ( Khan et al., 2022 ; Kharivha et al., 2022 ). In order to adapt to abiotic stresses such as drought, high temperature and low temperature, plants also reduce the impact of climatic conditions on themselves by regulating defense responses ( Akpinar and Cansev, 2022 ; Vital et al., 2022 ).…”

Section: Discussionmentioning

confidence: 99%

Protective enzyme activity regulation in cotton (Gossypium hirsutum L.) in response to Scirpus planiculmis stress

Zhang

Peng²,

Wang³

2022

Front. Plant Sci.

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Scirpus planiculmis, an important weed in rice and cotton fields, stresses crop growth and development, leading to yield loss. However, it is unclear how stressed plants respond to this weed. In this study, we analysed the stress effect of S. planiculmis on cotton under different weed densities, competition periods, and distribution conditions from the perspective of morphogenesis, physiological metabolism and crop yield. The effect of a low dose of herbicide on the relationship between cotton and S. planiculmis was also explored. The results showed that plant height, stem diameter, fresh weight, root length, boll number, single boll weight and yield of cotton all decreased with increasing S. planiculmis density and damage. The spatial distribution of S. planiculmis had no significant effect on plant height, stem diameter, fresh weight or root length of cotton, but crop yield loss decreased with increasing distance. S. planiculmis stress altered cotton chlorophyll, soluble protein and malondialdehyde (MDA) content, and protective enzyme activities. Compared with superoxide dismutase (SOD) and peroxidase (POD) activities, catalase (CAT) activity was increased under different S. planiculmis stress conditions. Therefore, we concluded that CAT plays a key role in protecting enzymes involved in defence responses. Under low-dose herbicide action, the activities of protective enzymes were increased, which helped cotton plants to resist S. planiculmis stress. The results revealed that regulating protective enzyme activities is important in cotton responses to S. planiculmis stress.

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High‐temperature stress in crops: male sterility, yield loss and potential remedy approaches

Cited by 20 publications

References 212 publications

Responses of differential metabolites and pathways to high temperature in cucumber anther

Responses of differential metabolites and pathways to high temperature in cucumber anther

Investigating the genetic control of plant development under speed breeding conditions

Protective enzyme activity regulation in cotton (Gossypium hirsutum L.) in response to Scirpus planiculmis stress

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