scholarly journals Evaluation and Characterization of Tomato (Solanum lycopersicum L.) Genotypes Using Path Coefficient, GGE Biplot and Cluster Analyses Under Natural Heat Stress

2020 ◽  
Author(s):  
Tika Ram Chapagain ◽  
AK Shrestha ◽  
MD Sharma ◽  
K Mishra Tripathi ◽  
A Srivastva
Keyword(s):  
Heat Stress ◽  
Solanum Lycopersicum ◽  
Path Coefficient ◽  
Gge Biplot ◽  
Cluster Analyses

Isolation and Functional Characterization of Heat-stress-responsive Gene TaWTF1 from Wheat

2013 ◽  
Vol 48 (1) ◽  
pp. 34-41 ◽  
Author(s):  
Qin Dandan ◽  
Xie Songchao ◽  
Liu Gang ◽  
Ni Zhongfu ◽  
Yao Yingyin ◽  
...  
Keyword(s):  
Heat Stress ◽  
Functional Characterization ◽  
Responsive Gene

scholarly journals Genome-Wide Identification and Characterization of Hsf and Hsp Gene Families and Gene Expression Analysis under Heat Stress in Eggplant (Solanum melongema L.)

Horticulturae ◽  
2021 ◽  
Vol 7 (6) ◽  
pp. 149
Author(s):  
Chao Gong ◽  
Qiangqiang Pang ◽  
Zhiliang Li ◽  
Zhenxing Li ◽  
Riyuan Chen ◽  
...  
Keyword(s):  
Heat Stress ◽  
Gene Families ◽  
High Temperature Stress ◽  
Pcr Analysis ◽  
Rna Seq ◽  
Genome Wide ◽  
Motif Composition ◽  
Hsp Genes ◽  
Identification And Characterization

Under high temperature stress, a large number of proteins in plant cells will be denatured and inactivated. Meanwhile Hsfs and Hsps will be quickly induced to remove denatured proteins, so as to avoid programmed cell death, thus enhancing the thermotolerance of plants. Here, a comprehensive identification and analysis of the Hsf and Hsp gene families in eggplant under heat stress was performed. A total of 24 Hsf-like genes and 117 Hsp-like genes were identified from the eggplant genome using the interolog from Arabidopsis. The gene structure and motif composition of Hsf and Hsp genes were relatively conserved in each subfamily in eggplant. RNA-seq data and qRT-PCR analysis showed that the expressions of most eggplant Hsf and Hsp genes were increased upon exposure to heat stress, especially in thermotolerant line. The comprehensive analysis indicated that different sets of SmHsps genes were involved downstream of particular SmHsfs genes. These results provided a basis for revealing the roles of SmHsps and SmHsp for thermotolerance in eggplant, which may potentially be useful for understanding the thermotolerance mechanism involving SmHsps and SmHsp in eggplant.

Characterization of potato (Solanum tuberosum) and tomato (Solanum lycopersicum) protein phosphatases type 2A catalytic subunits and their involvement in stress responses

Planta ◽  
2009 ◽  
Vol 230 (1) ◽  
pp. 13-25 ◽  
Author(s):  
Silvia Marina País ◽  
Marina Alejandra González ◽  
María Teresa Téllez-Iñón ◽  
Daniela Andrea Capiati
Keyword(s):  
Solanum Tuberosum ◽  
Solanum Lycopersicum ◽  
Stress Responses ◽  
Protein Phosphatases ◽  
Catalytic Subunits

scholarly journals Characterization of novel regulators for heat stress tolerance in tomato from Indian sub-continent

2019 ◽  
Author(s):  
Sonia Balyan ◽  
Sombir Rao ◽  
Sarita Jha ◽  
Chandni Bansal ◽  
Jaishri Rubina Das ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Heat Stress ◽  
Functional Characterization ◽  
Transcriptome Profiling ◽  
Negative Regulator ◽  
Comparative Transcriptome ◽  
Regulatory Pathways ◽  
Cool Region ◽  
Promoter Swapping

AbstractThe footprint of tomato cultivation, a cool region crop that exhibits heat stress (HS) sensitivity, is increasing in the tropics/sub-tropics. Knowledge of novel regulatory hot-spots from varieties growing in the Indian sub-continent climatic zones could be vital for developing HS-resilient crops. Comparative transcriptome-wide signatures of a tolerant (CLN1621L) and sensitive (CA4) cultivar-pair short-listed from a pool of varieties exhibiting variable thermo-sensitivity using physiological, survival and yield-related traits revealed redundant to cultivar-specific HS-regulation with more up-regulated genes for CLN1621L than CA4. The anatgonisiticly-expressing genes include enzymes; have roles in plant defense and response to different abiotic stresses. Functional characterization of three antagonistic genes by overexpression and TRV-VIGS silencing established Solyc09g014280 (Acylsugar acyltransferase) and Solyc07g056570 (Notabilis), that are up-regulated in tolerant cultivar, as positive regulators of HS-tolerance and Solyc03g020030 (Pin-II proteinase inhibitor), that is down-regulated in CLN1621L, as negative regulator of thermotolerance. Transcriptional assessment of promoters of these genes by SNPs in stress-responsive cis-elements and promoter swapping experiments in opposite cultivar background showed inherent cultivar-specific orchestration of transcription factors in regulating transcription. Moreover, overexpression of three ethylene response transcription factors (ERF.C1/F4/F5) also improved HS-tolerance in tomato. This study identifies several novel HS-tolerance genes and provides proof of their utility in tomato-thermotolerance.HighlightNovel heat stress regulatory pathways uncovered by comparative transcriptome profiling between contrasting tomato cultivars from Indian sub-continent for improving thermotolerance. (20/30)

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