Differential Expression of Rice Two-Component Element Genes under Drought Stress

2009 ◽  
Vol 35 (9) ◽  
pp. 1628-1636 ◽  
Author(s):  
Ya-Jiao PAN ◽  
Di WANG ◽  
Ling-Hua ZHU ◽  
Bin-Ying FU ◽  
Zhi-Kang LI
Keyword(s):  
Drought Stress ◽  
Differential Expression ◽  
Two Component ◽  
Component Element

Differential Expressions of Two-Component Element Genes in Rice Under Drought Stress

2009 ◽  
Vol 35 (9) ◽  
pp. 1628-1636
Author(s):  
Ya-Jiao PAN ◽  
Di WANG ◽  
Ling-Hua ZHU ◽  
Bin-Ying FU ◽  
Zhi-Kang LI
Keyword(s):  
Drought Stress ◽  
Two Component ◽  
Component Element

scholarly journals Differential expression profiles and pathways of genes in sugarcane leaf at elongation stage in response to drought stress

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Changning Li ◽  
Qian Nong ◽  
Manoj Kumar Solanki ◽  
Qiang Liang ◽  
Jinlan Xie ◽  
...  
Keyword(s):  
Drought Stress ◽  
Differential Expression ◽  
Expression Profiles

scholarly journals Effect of Drought on Storage Root Development and Gene Expression Profile of Sweetpotato under Greenhouse and Field Conditions

2014 ◽  
Vol 139 (3) ◽  
pp. 317-324 ◽  
Author(s):  
Julio Solis ◽  
Arthur Villordon ◽  
Niranjan Baisakh ◽  
Don LaBonte ◽  
Nurit Firon
Keyword(s):  
Drought Stress ◽  
Differential Expression ◽  
Root Development ◽  
Water Deprivation ◽  
Expression Patterns ◽  
Storage Root ◽  
Altered Expression ◽  
Sand Control ◽  
Binding Factor ◽  
Drought Conditions

Greenhouse and field culture systems were used to study the effect of drought conditions on the storage root (SR) formation in ‘Beauregard’ sweetpotato (Ipomoea batatas). In the greenhouse culture system, drought was simulated by withholding water for 5 and 10 days after transplanting (DAT) cuttings in dry sand. Control plants received water at planting and every 3 days thereafter. In the field studies, natural drought conditions and selective irrigation were used to impose water deprivation during the critical SR formation period. Greenhouse drought for 5 and 10 DAT reduced the number of SRs by 42% and 66%, respectively, compared with the controls. Field drought resulted in a 49% reduction in U.S. #1 SR yield compared with the irrigated condition. Quantitative real-time polymerase chain reaction (PCR) analysis showed differential expression of a set of sweetpotato transcription factors and protein kinases among greenhouse-grown plants subjected to well-watered conditions and water deficit during 5 DAT. A significant enhancement of expression was observed for known drought stress-associated genes such as an abscisic acid-responsive elements-binding factor, dehydration-responsive element-binding factor, and homeo-domain-zip proteins. Members of calcium-binding proteins showed differential expression under drought stress. For the first time it is reported that knotted1-like homeobox and BEL1-like genes showed altered expression in response to drought stress under a greenhouse condition. In summary, the results suggest that water deprivation during the SR formation period influences root development and expression patterns of stress-responsive genes and those previously found associated with SR formation in sweetpotato.

scholarly journals Characterization of Trehalose-6-phosphate Synthase and Trehalose-6-phosphate Phosphatase Genes and Analysis of its Differential Expression in Maize (Zea mays) Seedlings under Drought Stress

Plants ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 315 ◽  
Author(s):  
Phamela Acosta-Pérez ◽  
Bianka Dianey Camacho-Zamora ◽  
Edward A. Espinoza-Sánchez ◽  
Guadalupe Gutiérrez-Soto ◽  
Francisco Zavala-García ◽  
...  
Keyword(s):  
Drought Stress ◽  
Differential Expression ◽  
Extreme Temperature ◽  
Amino Acid Sequences ◽  
Maize Seedlings ◽  
Resistant Lines ◽  
Highly Sensitive ◽  
Catalytic Sites ◽  
Phosphate Synthase

Maize is the most important crop around the world and it is highly sensitive to abiotic stress caused by drought, excessive salinity, and extreme temperature. In plants, trehalose has been widely studied for its role in plant adaptation to different abiotic stresses such as drought, high and low temperature, and osmotic stress. Thus, the aim of this work was to clone and characterize at molecular level the trehalose-6-phosphate synthase (TPS) and trehalose-6-phosphate phosphatase (TPP) genes from maize and to evaluate its differential expression in maize seedlings under drought stress. To carry out this, resistant and susceptible maize lines were subjected to drought stress during 72 h. Two full-length cDNAs of TPS and one of TPP were cloned and sequenced. Then, TPS and TPP amino acid sequences were aligned with their homologs from different species, showing highly conserved domains and the same catalytic sites. Relative expression of both genes was evaluated by RT-qPCR at different time points. The expression pattern showed significant induction after 0.5 h in resistant lines and after two to four hours in susceptible plants, showing their participation in drought stress response.

Differential expression of candidate genes for lignin biosynthesis under drought stress in maize leaves

2009 ◽  
Vol 50 (3) ◽  
pp. 213-223 ◽  
Author(s):  
Y. Hu ◽  
W. Ch. Li ◽  
Y. Q. Xu ◽  
G. J. Li ◽  
Y. Liao ◽  
...  
Keyword(s):  
Drought Stress ◽  
Differential Expression ◽  
Candidate Genes ◽  
Lignin Biosynthesis ◽  
Maize Leaves

scholarly journals Transcriptomic responses to drought stress among natural populations provide insights into local adaptation of weeping forsythia

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yong Li ◽  
Long-Chen Shi ◽  
Nan-Cai Pei ◽  
Samuel A. Cushman ◽  
Yu-Tao Si
Keyword(s):  
Drought Stress ◽  
Differential Expression ◽  
Local Adaptation ◽  
Evolutionary Biology ◽  
Molecular Ecology ◽  
Evolutionary Process ◽  
Reduction Process ◽  
Heterogeneous Environments ◽  
Significant Differential Expression ◽  
Genetic Mechanisms

Abstract Background Understanding the genetic mechanisms of local adaptation is an important emerging topic in molecular ecology and evolutionary biology. Results Here, we identify the physiological changes and differential expression of genes among different weeping forsythia populations under drought stress in common garden experiments. Physiological results showed that HBWZ might have higher drought tolerance among four populations. RNA-seq results showed that significant differential expression in the genes responding to the synthesis of flavonoids, aromatic substances, aromatic amino acids, oxidation–reduction process, and transmembrane transport occured among four populations. By further reanalysis of results of previous studies, sequence differentiation was found in the genes related to the synthesis of aromatic substances among different weeping forsythia populations. Conclusions Overall, our study supports the hypothesis that the dual differentiation in gene efficiency and expression increases among populations in response to heterogeneous environments and is an important evolutionary process of local adaptation. Here, we proposed a new working model of local adaptation of weeping forsythia populations under different intensities of drought stress, which provides new insights for understanding the genetic mechanisms of local adaptation for non-model species.

scholarly journals Comparative Transcriptomics and Co-Expression Networks Reveal Tissue- and Genotype-Specific Responses of qDTYs to Reproductive-Stage Drought Stress in Rice (Oryza sativa L.)

Genes ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 1124
Author(s):  
Jeshurun Asher Tarun ◽  
Ramil Mauleon ◽  
Juan David Arbelaez ◽  
Sheryl Catausan ◽  
Shalabh Dixit ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Drought Stress ◽  
Quantitative Trait Loci ◽  
Differential Expression ◽  
Quantitative Trait ◽  
Allelic Variation ◽  
Oryza Sativa L ◽  
Flag Leaf ◽  
Reproductive Stage ◽  
Drought Tolerant

Rice (Oryza sativa L.) is more sensitive to drought stress than other cereals. To dissect molecular mechanisms underlying drought-tolerant yield in rice, we applied differential expression and co-expression network approaches to transcriptomes from flag-leaf and emerging panicle tissues of a drought-tolerant yield introgression line, DTY-IL, and the recurrent parent Swarna, under moderate reproductive-stage drought stress. Protein turnover and efficient reactive oxygen species scavenging were found to be the driving factors in both tissues. In the flag-leaf, the responses further included maintenance of photosynthesis and cell wall reorganization, while in the panicle biosynthesis of secondary metabolites was found to play additional roles. Hub genes of importance in differential drought responses included an expansin in the flag-leaf and two peroxidases in the panicle. Overlaying differential expression data with allelic variation in DTY-IL quantitative trait loci allowed for the prioritization of candidate genes. They included a differentially regulated auxin-responsive protein, with DTY-IL-specific amino acid changes in conserved domains, as well as a protein kinase with a DTY-IL-specific frameshift in the C-terminal region. The approach highlights how the integration of differential expression and allelic variation can aid in the discovery of mechanism and putative causal contribution underlying quantitative trait loci for drought-tolerant yield.

Sign in / Sign up

Export Citation Format

Share Document