Large-Scale Heat-Tolerance Screening and Genetic Diversity of Pea (Pisum sativum L.) Germplasms

Wang, Dong; Yang, Tao; Liu, Rong; Li, Nana; Ahmad, Naveed; Guan, Li; Ji, Yishan; Wang, Chenyu; Li, Mengwei; Yan, Xin; Ding, Hanfeng; Zong, Xuxiao

doi:10.3390/plants11192473

Cited by 3 publications

(2 citation statements)

References 71 publications

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“…Furthermore, local pea land races have reported to carry many important traits for various biotic and abiotic stresses including HS and such races should be utilized in pea breeding program aimed to improve the HS tolerance (Bahuguna et al, 2015;Kilasi et al, 2018). In China, Wang et al (2022) screened 2358 worldwide pea accessions for three years and identified 26 extremely heat tolerant accessions. These accessions can be used for breeding for HS tolerance in pea.…”

Section: Harnessing Crop Germplasm Repertoirementioning

confidence: 99%

Heat stress tolerance in peas (Pisum sativum L.): Current status and way forward

Devi

Sagar²,

Mishra³

et al. 2023

Front. Plant Sci.

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In the era of climate change, the overall productivity of pea (Pisum sativum L.) is being threatened by several abiotic stresses including heat stress (HS). HS causes severe yield losses by adversely affecting several traits in peas. A reduction in pod yield has been reported from 11.1% to 17.5% when mean daily temperature increase from 1.4 to 2.2°C. High-temperature stress (30.5-33°C) especially during reproductive phase is known to drastically reduce both seed yield and germination. HS during germination and early vegetative stage resulted in poor emergence and stunted plant growth along with detrimental effects on physiological functions of the pea plant. To combat HS and continue its life cycle, plants use various defense strategies including heat escape, avoidance or tolerance mechanisms. Ironically, the threshold temperatures for pea plant and its responses are inconsistent and not yet clearly identified. Trait discovery through traditional breeding such as semi leaflessness (afila), upright growing habit, lodging tolerance, lower canopy temperature and small seeded nature has highlighted their utility for greater adaptation under HS in pea. Screening of crop gene pool and landraces for HS tolerance in a targeted environment is a simple approach to identify HS tolerant genotypes. Thus, precise phenotyping using modern phenomics tools could lead to increased breeding efficiency. The NGS (next generation sequencing) data can be associated to find the candidate genes responsible for the HS tolerance in pea. In addition, genomic selection, genome wide association studies (GWAS) and marker assisted selection (MAS) can be used for the development of HS tolerant pea genotypes. Additionally, development of transgenics could be an alternative strategy for the development of HS tolerant pea genotypes. This review comprehensively covers the various aspects of HS tolerance mechanisms in the pea plant, screening protocols, omic advances, and future challenges for the development of HS tolerant genotypes.

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Section: Harnessing Crop Germplasm Repertoirementioning

confidence: 99%

Heat stress tolerance in peas (Pisum sativum L.): Current status and way forward

Devi

Sagar²,

Mishra³

et al. 2023

Front. Plant Sci.

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show abstract

“…Salt stress has direct impacts on photosynthesis, such as diffusion restrictions via the stomata and mesophyll cells, which change the photosynthetic metabolism [8,9]. High levels of Na + uptake by the cytoplasm decrease metabolic and various enzymes' activities and also inhibit the photosynthesis process at the cellular level [9,10]. The effects of salinity on photosynthesis may include a reduction in electron transfer, the inactivation of the photosystem II reaction centers, the destruction of the oxygen-evolving complex, and a reduction in the donor side's ability to transfer electrons [11,12].…”

Section: Introductionmentioning

confidence: 99%

Comparative Transcriptome Analysis Reveals the Protective Role of Melatonin during Salt Stress by Regulating the Photosynthesis and Ascorbic Acid Metabolism Pathways in Brassica campestris

Shah,

Wang,

et al. 2024

IJMS

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Salinity stress is a type of abiotic stress which negatively affects the signaling pathways and cellular compartments of plants. Melatonin (MT) has been found to be a bioactive compound that can mitigate these adverse effects, which makes it necessary to understand the function of MT and its role in salt stress. During this study, plants were treated exogenously with 100 µM of MT for 7 days and subjected to 200 mM of salt stress, and samples were collected after 1 and 7 days for different indicators and transcriptome analysis. The results showed that salt reduced chlorophyll contents and damaged the chloroplast structure, which was confirmed by the downregulation of key genes involved in the photosynthesis pathway after transcriptome analysis and qRT-PCR confirmation. Meanwhile, MT increased the chlorophyll contents, reduced the electrolyte leakage, and protected the chloroplast structure during salt stress by upregulating several photosynthesis pathway genes. MT also decreased the H2O2 level and increased the ascorbic acid contents and APX activity by upregulating genes involved in the ascorbic acid pathway during salt stress, as confirmed by the transcriptome and qRT-PCR analyses. Transcriptome profiling also showed that 321 and 441 DEGs were expressed after 1 and 7 days of treatment, respectively. The KEGG enrichment analysis showed that 76 DEGs were involved in the photosynthesis pathway, while 35 DEGs were involved in the ascorbic acid metabolism pathway, respectively. These results suggest that the exogenous application of MT in plants provides important insight into understanding MT-induced stress-responsive mechanisms and protecting Brassica campestris against salt stress by regulating the photosynthesis and ascorbic acid pathway genes.

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Advancing environmental sustainability through microbial reprogramming in growth improvement, stress alleviation, and phytoremediation

Iqbal,

Li,

Alabbosh

et al. 2023

Plant Stress

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Large-Scale Heat-Tolerance Screening and Genetic Diversity of Pea (Pisum sativum L.) Germplasms

Cited by 3 publications

References 71 publications

Heat stress tolerance in peas (Pisum sativum L.): Current status and way forward

Heat stress tolerance in peas (Pisum sativum L.): Current status and way forward

Comparative Transcriptome Analysis Reveals the Protective Role of Melatonin during Salt Stress by Regulating the Photosynthesis and Ascorbic Acid Metabolism Pathways in Brassica campestris

Advancing environmental sustainability through microbial reprogramming in growth improvement, stress alleviation, and phytoremediation

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