scholarly journals Genome-wide analysis of thiourea-modulated salinity stress-responsive transcripts in seeds of Brassica juncea: identification of signalling and effector components of stress tolerance

2010 ◽  
Vol 106 (5) ◽  
pp. 663-674 ◽  
Author(s):  
A. K. Srivastava ◽  
N. K. Ramaswamy ◽  
P. Suprasanna ◽  
S. F. D'Souza
Keyword(s):  
Stress Tolerance ◽  
Brassica Juncea ◽  
Salinity Stress ◽  
Genome Wide Analysis ◽  
Genome Wide

scholarly journals A Genome-Wide Association Study Revealed Key SNPs/Genes Associated With Salinity Stress Tolerance In Upland Cotton

Genes ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 829 ◽  
Author(s):  
Muhammad Yasir ◽  
Shoupu He ◽  
Gaofei Sun ◽  
Xiaoli Geng ◽  
Zhaoe Pan ◽  
...  
Keyword(s):  
Salt Tolerance ◽  
Association Study ◽  
Stress Tolerance ◽  
Salinity Stress ◽  
Upland Cotton ◽  
Genome Wide Association Study ◽  
Genome Wide Association ◽  
Genome Wide ◽  
A Genome ◽  
Salinity Stress Tolerance

Millions of hectares of land are too saline to produce economically valuable crop yields. Salt tolerance in cotton is an imperative approach for improvement in response to ever-increasing soil salinization. Little is known about the genetic basis of salt tolerance in cotton at the seedling stage. To address this issue, a genome-wide association study (GWAS) was conducted on a core collection of a genetically diverse population of upland cotton (Gossypium hirsutum L.) comprising of 419 accessions, representing various geographic origins, including China, USA, Pakistan, the former Soviet Union, Chad, Australia, Brazil, Mexico, Sudan, and Uganda. Phenotypic evaluation of 7 traits under control (0 mM) and treatment (150 mM) NaCl conditions depicted the presence of broad natural variation in the studied population. The association study was carried out with the efficient mixed-model association eXpedited software package. A total of 17,264 single-nucleotide polymorphisms (SNPs) associated with different salinity stress tolerance related traits were found. Twenty-three candidate SNPs related to salinity stress-related traits were selected. Final key SNPs were selected based on the r2 value with nearby SNPs in a linkage disequilibrium (LD) block. Twenty putative candidate genes surrounding SNPs, A10_95330133 and D10_61258588, associated with leaf relative water content, RWC_150, and leaf fresh weight, FW_150, were identified, respectively. We further validated the expression patterns of twelve candidate genes with qRT-PCR, which revealed different expression levels in salt-tolerant and salt-sensitive genotypes. The results of our GWAS provide useful knowledge about the genetic control of salt tolerance at the seedling stage, which could assist in elucidating the genetic and molecular mechanisms of salinity stress tolerance in cotton plants.

scholarly journals Genome wide analysis of NLP transcription factors reveals their role in nitrogen stress tolerance of rice

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
B. Jagadhesan ◽  
Lekshmy Sathee ◽  
Hari S. Meena ◽  
Shailendra K. Jha ◽  
Viswanathan Chinnusamy ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Stress Tolerance ◽  
Nitrogen Stress ◽  
Genome Wide Analysis ◽  
Genome Wide

scholarly journals Genome-Wide Identification and Evolution of Receptor-Like Kinases (RLKs) and Receptor like Proteins (RLPs) in Brassica juncea

Biology ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 17
Author(s):  
Hua Yang ◽  
Philipp E. Bayer ◽  
Soodeh Tirnaz ◽  
David Edwards ◽  
Jacqueline Batley
Keyword(s):  
Brassica Juncea ◽  
Agronomic Traits ◽  
Gene Clusters ◽  
Gene Duplications ◽  
Genome Wide Analysis ◽  
Germplasm Resource ◽  
Genome Wide ◽  
Receptor Like Kinase ◽  
Development Processes ◽  
Allotetraploid Species

Brassica juncea, an allotetraploid species, is an important germplasm resource for canola improvement, due to its many beneficial agronomic traits, such as heat and drought tolerance and blackleg resistance. Receptor-like kinase (RLK) and receptor-like protein (RLP) genes are two types of resistance gene analogues (RGA) that play important roles in plant innate immunity, stress response and various development processes. In this study, genome wide analysis of RLKs and RLPs is performed in B. juncea. In total, 493 RLKs (LysM-RLKs and LRR-RLKs) and 228 RLPs (LysM-RLPs and LRR-RLPs) are identified in the genome of B. juncea, using RGAugury. Only 13.54% RLKs and 11.79% RLPs are observed to be grouped within gene clusters. The majority of RLKs (90.17%) and RLPs (52.83%) are identified as duplicates, indicating that gene duplications significantly contribute to the expansion of RLK and RLP families. Comparative analysis between B. juncea and its progenitor species, B. rapa and B. nigra, indicate that 83.62% RLKs and 41.98% RLPs are conserved in B. juncea, and RLPs are likely to have a faster evolution than RLKs. This study provides a valuable resource for the identification and characterisation of candidate RLK and RLP genes.

scholarly journals Environmental adaptability and stress tolerance of Laribacter hongkongensis: a genome-wide analysis

2011 ◽  
Vol 1 (1) ◽  
pp. 22 ◽  
Author(s):  
Susanna KP Lau ◽  
Rachel YY Fan ◽  
Tom CC Ho ◽  
Gilman KM Wong ◽  
Alan KL Tsang ◽  
...  
Keyword(s):  
Stress Tolerance ◽  
Genome Wide Analysis ◽  
Genome Wide ◽  
A Genome ◽  
Laribacter Hongkongensis ◽  
Environmental Adaptability

scholarly journals Genome-Wide Analysis of the AP2/ERF Gene Family in Physic Nut and Overexpression of the JcERF011 Gene in Rice Increased Its Sensitivity to Salinity Stress

PLoS ONE ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. e0150879 ◽  
Author(s):  
Yuehui Tang ◽  
Shanshan Qin ◽  
Yali Guo ◽  
Yanbo Chen ◽  
Pingzhi Wu ◽  
...  
Keyword(s):  
Gene Family ◽  
Salinity Stress ◽  
Physic Nut ◽  
Genome Wide Analysis ◽  
Genome Wide

Genome-wide analysis of ZAT gene family revealed GhZAT6 regulates salt stress tolerance in G. hirsutum

Plant Science ◽  
2021 ◽  
Vol 312 ◽  
pp. 111055
Author(s):  
Guoquan Chen ◽  
Zhao Liu ◽  
Shengdong Li ◽  
Ghulam Qanmber ◽  
Le Liu ◽  
...  
Keyword(s):  
Salt Stress ◽  
Gene Family ◽  
Stress Tolerance ◽  
Salt Stress Tolerance ◽  
Genome Wide Analysis ◽  
Genome Wide

scholarly journals Genome-Wide Association Mapping of Salinity Tolerance at the Seedling Stage in a Panel of Vietnamese Landraces Reveals New Valuable QTLs for Salinity Stress Tolerance Breeding in Rice

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1088
Author(s):  
Thao Duc Le ◽  
Floran Gathignol ◽  
Huong Thi Vu ◽  
Khanh Le Nguyen ◽  
Linh Hien Tran ◽  
...  
Keyword(s):  
Stress Tolerance ◽  
Salinity Stress ◽  
Salinity Tolerance ◽  
Seedling Stage ◽  
Genome Wide Association ◽  
Transport Systems ◽  
Breeding Programs ◽  
Genome Wide ◽  
A Genome ◽  
Salinity Stress Tolerance

Rice tolerance to salinity stress involves diverse and complementary mechanisms, such as the regulation of genome expression, activation of specific ion-transport systems to manage excess sodium at the cell or plant level, and anatomical changes that avoid sodium penetration into the inner tissues of the plant. These complementary mechanisms can act synergistically to improve salinity tolerance in the plant, which is then interesting in breeding programs to pyramidize complementary QTLs (quantitative trait loci), to improve salinity stress tolerance of the plant at different developmental stages and in different environments. This approach presupposes the identification of salinity tolerance QTLs associated with different mechanisms involved in salinity tolerance, which requires the greatest possible genetic diversity to be explored. To contribute to this goal, we screened an original panel of 179 Vietnamese rice landraces genotyped with 21,623 SNP markers for salinity stress tolerance under 100 mM NaCl treatment, at the seedling stage, with the aim of identifying new QTLs involved in the salinity stress tolerance via a genome-wide association study (GWAS). Nine salinity tolerance-related traits, including the salt injury score, chlorophyll and water content, and K+ and Na+ contents were measured in leaves. GWAS analysis allowed the identification of 26 QTLs. Interestingly, ten of them were associated with several different traits, which indicates that these QTLs act pleiotropically to control the different levels of plant responses to salinity stress. Twenty-one identified QTLs colocalized with known QTLs. Several genes within these QTLs have functions related to salinity stress tolerance and are mainly involved in gene regulation, signal transduction or hormone signaling. Our study provides promising QTLs for breeding programs to enhance salinity tolerance and identifies candidate genes that should be further functionally studied to better understand salinity tolerance mechanisms in rice.

Sign in / Sign up

Export Citation Format

Share Document