Cold-tolerant introgression line construction and low-temperature stress response analysis for bell pepper

Ji, Lusha; Li, Pan; Zhenhua, Su; Li, Meifang; Guo, Shangjing

doi:10.1080/15592324.2020.1773097

Cited by 16 publications

(12 citation statements)

References 25 publications

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“…Particularly, reports demonstrated the impact of the night low temperature (NLT) with different temperature regimes during the period of entire growth and development [6,7]. The NLT remarkably affected seed germination, seedling growth, leaf morphology, stem diameter (SD), and plant height (PH) during the vegetative stages of tomato, cucumber, and pepper plants [7][8][9][10][11][12][13][14], causing poor growth and development. The temperature stress also affected the reproductive index, including the agronomical traits of the number of flowers (NFL), the number of fruits (NFR), fruit set (FS), and fruit yield (FY) during reproductive stages of pepper plants [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Night Low Temperature on Agronomical Traits of Thirty-Nine Pepper Accessions (Capsicum annuum L.)

Rajametov¹,

Lee²,

Jeong³

et al. 2021

Agronomy

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Pepper plants are subject to complex environmental factors including abiotic and biotic stresses in fields, as well as the significant effects of climate changes, including low and high temperatures. Low temperature stress in the growth and development of pepper plants is one of the most critical issues, and directly impacts the crop yield and productivity of pepper plants. Therefore, it is essential to select and breed low temperature-(LT) tolerant pepper (Capsicum annuum L.) cultivars. This research was conducted to assess the agronomical traits of 39 pepper accessions belonging to the chili and bell fruit varieties which were cultivated under two different night temperature set-points: at 15 °C for a suboptimal temperature (CT) and at 10 °C for a low temperature (LT). The plant heights (PH) of most pepper accessions in a LT were significantly decreased compared to those in a CT. The stem diameter (SD) and the length of main axis (LMA) varied depending on the genotypes under LT. Moreover, the number of flowers (NFL), total number of fruits (NFR), fruit yield (FY), fruit fresh weight (FFW), fruit length (FL), fruit diameter (FD), and number of seeds in a fruit (NSF) remarkably declined in a LT compared to in a CT. The evaluated agronomical traits between LT and CT were further applied for the correlation analysis, principal component analysis (PCA), and hierarchical cluster analysis. Notably, the FY trait was correlated with other reproductive traits including NFR, FFW, FD, and FL on the positive directions and thirty-nine LT-treated pepper accessions were clustered into seven groups by the hierarchical clustering analysis. The selected accessions were primarily involved in the positive trends with the reproductive index including NFR, FL, FD, and FFW traits and could be used for pepper breeding programs to develop LT-tolerant cultivars.

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Section: Introductionmentioning

confidence: 99%

The Effect of Night Low Temperature on Agronomical Traits of Thirty-Nine Pepper Accessions (Capsicum annuum L.)

Rajametov¹,

Lee²,

Jeong³

et al. 2021

Agronomy

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“…Malondialdehyde (MDA) is a product of lipid peroxidation. The level of MDA in plants is an indicator of stress that evaluates the damage degree [ 16 ]. Peroxidase (POD) widely present in plants is regarded as a defense antioxidant, scavenging hydrogen peroxide (H 2 O 2 ) through oxidation of co-substrates like phenolic compounds [ 17 ].…”

Section: Discussionmentioning

confidence: 99%

Integrative Transcriptomic and Phytohormonal Analyses Provide Insights into the Cold Injury Recovery Mechanisms of Tea Leaves

Jin

et al. 2022

Plants

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Tea plant is susceptible to low temperature, while the cold injury recovery mechanisms of tea leaves are still unclear. Windbreak has an effective and gradient range of protecting tea plants. Tea plants with increasing cold damage degree have varying recovery status accordingly, which are the ideal objects for investigating the cold injury recovery mechanisms of tea leaves. Here, we investigated the transcriptome and phytohormone profiles of tea leaves with different cold injury degrees in recovery (adjacent to the windbreak), and the levels of chlorophylls, malondialdehyde, major phytohormones as well as the activities of peroxidase (POD) and superoxide dismutase (SOD) were also measured. The results showed the content of total chlorophylls and the activity of POD in mature tea leaves gradually decreased with the distance to windbreak, while SOD showed the opposite. The major phytohormones were highly accumulated in the moderately cold-injured tea leaves. The biosynthesis of abscisic acid (ABA) was enhanced in the moderate cold damaged tea leaves, suggesting that ABA plays an important role in the cold response and resistance of tea plants. The transcriptomic result showed that the samples in different rows were well discriminated, and the pathways of plant-pathogen interaction and flavonoid biosynthesis were enriched based on KEGG analysis. WRKY, GRAS and NAC were the top classes of transcription factors differentially expressed in the different cold-injured tea leaves. Thus, windbreak is effective to protect adjacent tea plants from cold wave, and phytohormones importantly participate in the cold injury recovery of tea leaves.

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“…Confronted with temperature stress, a number of wild taxa have evolved various eco-physiological strategies to survive and reproduce, which make them valuable for breeding and agricultural production ( Cairns et al., 2013 ; Tian et al., 2016 ; Dyderski et al., 2018 ). There are plenty publications providing guidance for resistant taxa selection by studying either morphological or physiological traits in experimental researches ( Ji et al., 2020 ; Ma and Fan, 2014 ). However, the number of experimental taxa is often restricted by the time-consuming fieldwork, compounded by the possibility that practitioners would be interested in just a small proportion of the resources ( Albani Rocchetti et al., 2021 ; Watkins et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Prediction of temperature tolerance in Lilium based on distribution and climate data

Chai

Zhang

et al. 2021

iScience

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There are plenty publications providing guidance for resistant taxa selection by experimental researches while the number of experimental taxa is often restricted. In this study, we presented a concise method to predict the temperature tolerance of wild Lilium in China based on open access botanical and associated environmental datasets. We divided all taxa into five groups to present an overview of Lilium's adaptability to temperature stress. Furthermore, according to the environmental conditions, the prediction of heat and cold tolerance in Lilium was made based on the combined multi-sources data at taxon level. Thirteen taxa with potential temperature tolerance were predicted of 42 taxa. The results showed that not only is tolerance prediction created by large-scale data analysis possible, but that it may supplement traditional laboratory researches with a comprehensive list of taxa.

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Cold-tolerant introgression line construction and low-temperature stress response analysis for bell pepper

Cited by 16 publications

References 25 publications

The Effect of Night Low Temperature on Agronomical Traits of Thirty-Nine Pepper Accessions (Capsicum annuum L.)

The Effect of Night Low Temperature on Agronomical Traits of Thirty-Nine Pepper Accessions (Capsicum annuum L.)

Integrative Transcriptomic and Phytohormonal Analyses Provide Insights into the Cold Injury Recovery Mechanisms of Tea Leaves

Prediction of temperature tolerance in Lilium based on distribution and climate data

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