VvBAP1, a Grape C2 Domain Protein, Plays a Positive Regulatory Role Under Heat Stress

Ye, Qing; Yu, Jintao; Zhang, Zhen; Hou, Lixia; Liu, Xin

doi:10.3389/fpls.2020.544374

Cited by 11 publications

(4 citation statements)

References 68 publications

(89 reference statements)

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“…This demonstrates that lines with favourable alleles for all of the speci ed QTLs might be successfully developed using MARS (as outlined above) to assure the generation of early maturing and high yielding lines that are suitable for both the normal and heat stress environments thus validating the selection of identi ed QTLs. activity that reduces ROS and lipid peroxidation, leading to the expression of genes involved in heat tolerance in Arabidopsis (Ye et al 2020). TaFBA1 encodes F-box protein (a major component of the Skp1-Cullin-F-box (SCF) E3 ligase complex).…”

Section: Validation Of Qtls In the High Yielding Dh Linesmentioning

confidence: 99%

Physical map of QTLs for some agronomic traits across many environments, identification of related candidate genes, and development of KASP markers with emphasis on terminal heat stress tolerance in common wheat

Kumar,

Sharma

et al. 2024

Preprint

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To understand the genetic architecture of important agronomic traits under heat stress, we used a doubled-haploid (DH) mapping population (177 lines) derived from a heat sensitive cultivar (PBW343) and a heat tolerant genotype (KSG1203). This population was evaluated for 11 agronomic traits under timely (optimum), late (mild heat stress), and very late sown (heat stress) environments over two locations and three years totalling 15 environments. Best linear unbiased estimates for each trait and a sequencing based genotyping (SBG) SNP genetic map comprising 5,710 markers were used for composite interval mapping of QTLs. The identified 66 QTLs were integrated into a physical map (5,710 SNPs; 14,263.4 Mb) of wheat. The 66 QTLs (20 novel QTLs) each explained 5.3–24.9% of the phenotypic variation. Thirteen stable QTLs each with high PVE were recommended for marker-assisted recurrent selection (MARS) for optimum and heat stress environments. Selected QTLs were validated by their presence in high yielding DH lines. Three QTLs for 1000-grain weight were co-localized with known genes TaERF3-3B, TaFER-5B, and TaZIM-A1; a QTL for grain yield was co-localized with TaCol-B5, and gene TaVRT-2 was associated with traits related with some of the QTLs for spike traits. Specific known genes for several traits including thermostability, enhanced grain yield etc. were co-located with the QTLs. Furthermore, 61 differentially expressed candidate genes for heat tolerance in plants that encode 28 different proteins were identified. KASP markers for three major/stable QTLs were developed for MARS focussing on the development of heat tolerant wheat varieties and germplasm.

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Section: Validation Of Qtls In the High Yielding Dh Linesmentioning

confidence: 99%

Physical map of QTLs for some agronomic traits across many environments, identification of related candidate genes, and development of KASP markers with emphasis on terminal heat stress tolerance in common wheat

Kumar,

Sharma

et al. 2024

Preprint

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“…The role of some of the important high con dence CGs in providing thermotolerance can be summarized as follows: (i) UDP-glucosyltransferase gene redirects the metabolic ux from lignin biosynthesis to avonoid biosynthesis under abiotic stress (heat, drought, and salt stress) and the accumulation of avonoid glycosides providing protection against abiotic stress leading to improvement in grain size (Dong et al 2020), (ii) over-expression of a zinc nger transcription factor conferred improved thermotolerance and grain yield, as demonstrated in Arabidopsis thaliana (Agarwal et al 2018), (iii) functional involvement of soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs) in abiotic and biotic stresses, as reported in several plant species (Kwon et al 2020), (iv) overexpression of MYB genes provided improved thermotolerance and drought tolerance; this has been attributed to enhanced levels of cellular abscisic acid in wheat (Zhao et al 2017), (v) a KH domain-containing putative RNAbinding protein was reported to be crucial for the regulation of heat stress-responsive gene and thermotolerance in A. thaliana (Guan et al 2013), and (vi) a C2 domain protein was reported to play a key role in the improvement of A. thaliana thermotolerance, mainly through the enhancement of antioxidant enzyme activity, leading to enhanced expression of genes for response to heat stress response (Ye et al 2020). While these potential genes are a promising target for future breeding and genetic studies, it is not apparent whether they are the actual regulators behind the MQTLs, since many other genes occur within the CIs of the MQTL's.…”

Section: Mqtls Co-located With Known Genes For Thermotolerancementioning

confidence: 99%

Meta-QTLs, ortho-MQTLs and candidate genes for thermotolerance in wheat (Triticum aestivum L.)

Kumar

Singh

Saini

et al. 2021

Preprint

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Meta-QTL analysis for thermotolerance in wheat was conducted to identify robust meta-QTLs (MQTLs). In this study, 441 QTLs related to 31 heat-responsive traits were projected on the consensus map saturated with 50,310 markers. This exercise resulted in the identification of 85 MQTLs with confidence interval (CI) ranging from 0.11 to 34.9 cM with an average of 5.6 cM. This amounted to a 2.96 fold reduction relative to the mean CI (16.5 cM) of the QTLs used. Seventy-seven (77) of these MQTLs were also verified with the results of recent genome-wide association studies (GWAS). These MQTLs included seven MQTLs that are particularly useful for breeding purposes (we called them Breeders’ MQTLs). Seven ortho-MQTLs between wheat and rice genomes were also identified using synteny and collinearity. The MQTLs were used for the identification of 1,704 candidate genes (CGs). In silico expression analysis of these CGs permitted identification of 182 differentially expressed genes (DEGs), which included 36 high-confidence candidate genes (CGs) with known functions previously reported to be important for thermotolerance. These high confidence CGs encoded proteins belonging to the following families: protein kinase, WD40 repeat, glycosyltransferase, ribosomal protein, SNARE associated Golgi protein, GDSL lipase/esterase, SANT/Myb domain, K homology domain, etc. Thus, the present study resulted in the identification of MQTLs (including breeders’ MQTLs), ortho-MQTLs, and underlying CGs, which could prove useful not only for molecular breeding for the development of thermotolerant wheat cultivars but also for future studies focused on understanding the molecular basis of thermotolerance.

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“…This physiological damage may disturb the normal cellular homeostasis, leading to retardation in growth and development and even death under extreme conditions [7,8]. Grapevines have internal adaptive mechanisms to face heat stress [9]. Metabolic processes such as respiration, photosynthesis and transpiration are very sensitive even in short-term temperature fluctuations [7].…”

Section: Introductionmentioning

confidence: 99%

Monofilament Shading Nets Improved Water Use Efficiency on High-Temperature Days in Grapevines Subjected to Hyperarid Conditions

Gutiérrez-Gamboa,

Villalobos-Soublett,

Garrido-Salinas

et al. 2024

Horticulturae

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(1) Background: Table grapes are often subjected to thermal stress during the growing season, affecting their production. Shading nets utilization has been proposed as an alternative to face this problem, but there is little available information about their effectiveness in hyperarid conditions. INIA-G2 vines were covered with kristall-colored mesh of 8% shade, and their ecophysiological responses were compared to uncovered vines during the daily cycle of two days with contrasting thermic conditions. (2) Methods: Net assimilation rate (AN), stomatal conductance (gs), transpiration (E), instantaneous water use efficiency (WUE: AN E−1), stem water potential (Ψs), air temperature (Ta) and vapor-pressure deficit (DPV) were determined in daily cycles (from 06:00 to 20:00 hrs) on two thermally contrasting days (330 DOY at 29.4 °C and 345 DOY at 22.6 °C) on grapevines without water restriction. (3) Results: The Ψs was not affected by treatment and day of measurement; nevertheless, AN and gs were statistically lower during 330 than 345 DOY (31% and 44% decrease, respectively). The covered vines presented less restrictive climatic conditions in terms of DPV in both DOY, reaching higher WUE values at 10, 12 and 14 h, which was associated with a decrease in E. (4) Conclusions: These results suggest that the use of shading nets can be an interesting alternative to cope with high temperatures in viticulture, improving the water use efficiency of vines. These are the first published results about the viticultural performance of the INIA-G2 variety.

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VvBAP1, a Grape C2 Domain Protein, Plays a Positive Regulatory Role Under Heat Stress

Cited by 11 publications

References 68 publications

Physical map of QTLs for some agronomic traits across many environments, identification of related candidate genes, and development of KASP markers with emphasis on terminal heat stress tolerance in common wheat

Physical map of QTLs for some agronomic traits across many environments, identification of related candidate genes, and development of KASP markers with emphasis on terminal heat stress tolerance in common wheat

Meta-QTLs, ortho-MQTLs and candidate genes for thermotolerance in wheat (Triticum aestivum L.)

Monofilament Shading Nets Improved Water Use Efficiency on High-Temperature Days in Grapevines Subjected to Hyperarid Conditions

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