scholarly journals MODIFICATIONS OF GENE EXPRESSION OF SOME QUALITY TRAITS IN BREAD WHEAT USING GAMMA IRRADIATION

2012 ◽  
Vol 41 (1) ◽  
pp. 37-48 ◽  
Author(s):  
HANAN MANSOUR ◽  
F. ABDEL-TAWAB ◽  
EMAN FAHMY ◽  
SUZAN MAHROUS ◽  
HALA EISSA ◽  
...  
Keyword(s):  
Gene Expression ◽  
Gamma Irradiation ◽  
Bread Wheat ◽  
Quality Traits

scholarly journals Chronic Gamma Irradiation Changes Phenotype and Gene Expression Partially Transmitted to Next-Generation Tomato Seedlings

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1638
Author(s):  
Seong-Min Kim ◽  
Yeong Deuk Jo ◽  
Jae-In Chun ◽  
Jin-Baek Kim ◽  
Jin-Ho Kang
Keyword(s):  
Gene Expression ◽  
Gamma Irradiation ◽  
Gamma Rays ◽  
Mutation Breeding ◽  
Fruit Shape ◽  
Leaf Length ◽  
Trichome Density ◽  
Next Generation ◽  
Seed Number ◽  
And Control

Compared to the studies on acute irradiation of seeds, fewer studies have reported on the chronic irradiation of seedlings, especially in fruit-bearing vegetables. We examined the effects of chronic gamma irradiation on tomato (Solanum lycopersicum ‘Micro-Tom’) seedlings exposed to gamma rays (50, 100, 150, and 200 Gy) for 4 weeks. As the total dose of gamma rays increased, leaf length, trichome density, and seed number were reduced in the irradiated seedlings (M1). Additionally, a change in fruit shape was observed. Chronic gamma irradiation reduced the expression of two trichome-related genes and affected the expression levels of 11 reactive oxygen species (ROS)-related genes. We examined the transmittance of these effects using M2 plants. The trichome density and fruit shape were similar between M2 and control plants; however, a reduction in leaf length and seed number was detected in M2 plants. Interestingly, changes in the expression of four ROS-related genes (ZAT10, Mn-SOD, POD3, and RBOH1) found in M1 were detected in M2 plants. Thus, the changes in phenotype and gene expression induced by chronic gamma irradiation were transmitted to the next generation. Additionally, we found novel mutants from M2 plants, suggesting that chronic gamma irradiation may be considered in tomato mutation breeding.

Melatonin triggers metabolic and gene expression changes leading to improved quality traits of two sweet cherry cultivars during cold storage

2020 ◽  
Vol 319 ◽  
pp. 126360 ◽  
Author(s):  
Simón Miranda ◽  
Paulina Vilches ◽  
Miriam Suazo ◽  
Leonardo Pavez ◽  
Katherine García ◽  
...  
Keyword(s):  
Gene Expression ◽  
Cold Storage ◽  
Sweet Cherry ◽  
Quality Traits ◽  
Sweet Cherry Cultivars

scholarly journals Morpho-physiological and molecular responses of two Libyan bread wheat cultivars to plant growth regulators under salt stress

2020 ◽  
Vol 15 (3) ◽  
Author(s):  
El Hadi Hadia ◽  
Amor Slama ◽  
Leila Romdhane ◽  
Hatem Cheikh M’hamed ◽  
Ahmed Houssein Abodoma ◽  
...  
Keyword(s):  
Gene Expression ◽  
Salt Stress ◽  
Plant Growth ◽  
Gibberellic Acid ◽  
Plant Growth Regulators ◽  
Bread Wheat ◽  
Growth Regulators ◽  
Glycine Betaine ◽  
Growth Yield ◽  
Wheat Varieties

To study the effects of salt stress and plant growth regulators (kinetin, gibberellic acid, potassium) on growth, yield, glycine betaine content, phosphoenolpyruvate carboxylase (PEPC) and ribulose biphosphate carboxylase (RBC) gene expression of two Libyan bread wheat varieties, a factorial design of greenhouse experiment with three replications was conducted. Results revealed that salt stress significantly reduced plant growth and productivity of both varieties. Moreover, the addition of kinetin + potassium and gibberellic acid + potassium had improved the performance of the morpho-metric parameters of both genotypes under salt stress; but the performance was more effective for kinetin treatment than for gibberellic acid. At the biochemical level, the results showed that salt stress increased glycine betaine contents in both varieties with different proportions. This increase is more elevated in the presence of kinetin + potassium than the treatment with gibberellic acid+ potassium, which showed an almost similar result as in only salt stress. At the molecular level, the effects of salt stress and plant growth regulators on the PEPC and RBC gene expression showed that the increase was significantly higher for kinetin, gibberellic acid, and salt stress when compared to the control.

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