Abstract
Improving of drought tolerant genotypes becomes a principle demand, especially for economical crops like soybean. Five soybean genotypes were treated with different polyethylene glycol 6000 concentrations (5%, 10% and 15%) to determine the potential tolerance of the genotypes under maximum water-deficient conditions. Among the studied genotypes, D89-89-40 and Line 30 were found to be more adaptive to 15% and 10% PEG treatments, respectively. They showed the highest expression for proline content as well as superoxide dismutase, peroxidase and ascorbate peroxidase under water stress. This enabled that D89-89-40 and Line 30 genotypes kept the decrease in lipid peroxidation and electrolyte leakage, consequently the decrease in relative water content to a basal level in response to drought treatments was observed. Semi quantitative analysis of CAB3, DHN1 and DHN2 genes showed increase in the expression level of DHN2 gene in D89-89-40 genotype but kept steady in Line 30 genotype. The slightest reduction in DHN1 and CAB3 expressions among genotypes was recorded in D89-89-40 and Line 30 genotypes accompanied with the slightest decrease in photosynthetic activity and pigment content. The study suggested that D89-89-40 and Line 30 genotypes as drought-tolerant genotypes and nominated them for wide spreading cultivation. The results also assumed that the expression level of DHN2 gene could be used as a selection marker for drought tolerance screening in soybean genotypes.
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Claims 12
Claim · model-written summary
D89-89-40 was more adaptive to 15% PEG.
- Taxon
- SOYBEANS
Glycine maxt0 - Material
- D89-89-40e0
- Treatment
- 15%e0
- Outcome
- more adaptivee0
- Direction
- more adaptivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D89-89-40 and Line 30 were found to be more adaptive to 15% and 10% PEG treatments, respectively.”
t0“SOYBEANS”
Claim · model-written summary
Line 30 was more adaptive to 10% PEG.
- Taxon
- SOYBEANSGlycine maxt0
- Material
- Line 30e0
- Treatment
- 10% PEGe0
- Outcome
- more adaptivee0
- Direction
- more adaptivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D89-89-40 and Line 30 were found to be more adaptive to 15% and 10% PEG treatments, respectively.”
t0“SOYBEANS”
Claim · model-written summary
The two genotypes had highest proline content under water stress.
- Taxon
- SOYBEANSGlycine maxt0
- Material
- D89-89-40 and Line 30e1
- Treatment
- water stresse0
- Outcome
- proline contente0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“They showed the highest expression for proline content as well as superoxide dismutase, peroxidase and ascorbate peroxidase under water stress.”
e1“Among the studied genotypes, D89-89-40 and Line 30 were found to be more adaptive”
t0“SOYBEANS”
Claim · model-written summary
The two genotypes had highest stress enzyme expression.
- Taxon
- SOYBEANSGlycine maxt0
- Material
- D89-89-40 and Line 30e1
- Treatment
- water stresse0
- Outcome
- superoxide dismutase, peroxidase and ascorbate peroxidasee0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“They showed the highest expression for proline content as well as superoxide dismutase, peroxidase and ascorbate peroxidase under water stress.”
e1“Among the studied genotypes, D89-89-40 and Line 30 were found to be more adaptive”
t0“SOYBEANS”
Claim · model-written summary
Lipid peroxidation and electrolyte leakage decreased in the two genotypes.
- Taxon
- SOYBEANSGlycine maxt0
- Material
- D89-89-40 and Line 30e0
- Outcome
- lipid peroxidation and electrolyte leakagee0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D89-89-40 and Line 30 genotypes kept the decrease in lipid peroxidation and electrolyte leakage”
t0“SOYBEANS”
Claim · model-written summary
Relative water content decreased to a basal level after drought treatments.
- Taxon
- SOYBEANSGlycine maxt0
- Treatment
- drought treatmentse0
- Outcome
- relative water contente0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the decrease in relative water content to a basal level in response to drought treatments was observed.”
t0“SOYBEANS”
Claim · model-written summary
DHN2 expression increased in D89-89-40.
- Taxon
- SOYBEANSGlycine maxt0
- Material
- D89-89-40e0
- Gene
- DHN2e0
- Outcome
- expression level of DHN2 genee0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in the expression level of DHN2 gene in D89-89-40 genotype”
t0“SOYBEANS”
Claim · model-written summary
DHN2 expression stayed steady in Line 30.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DHN2 gene in D89-89-40 genotype but kept steady in Line 30 genotype”
t0“SOYBEANS”
Claim · model-written summary
DHN1 and CAB3 expression declined least in D89-89-40 and Line 30.
- Taxon
- SOYBEANSGlycine maxt0
- Material
- D89-89-40 and Line 30e0
- Gene
- DHN1 and CAB3e0
- Outcome
- DHN1 and CAB3 expressionse0
- Direction
- slightest reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The slightest reduction in DHN1 and CAB3 expressions among genotypes was recorded in D89-89-40 and Line 30 genotypes”
t0“SOYBEANS”
Claim · model-written summary
Photosynthetic activity and pigment content decreased least in the two genotypes.
- Taxon
- SOYBEANSGlycine maxt0
- Material
- D89-89-40 and Line 30e0
- Outcome
- photosynthetic activity and pigment contente0
- Direction
- slightest decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D89-89-40 and Line 30 genotypes accompanied with the slightest decrease in photosynthetic activity and pigment content”
t0“SOYBEANS”
Claim · model-written summary
The authors nominate D89-89-40 and Line 30 for wider cultivation.
- Taxon
- SOYBEANSGlycine maxt0
- Material
- D89-89-40 and Line 30e0
- Outcome
- wide spreading cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D89-89-40 and Line 30 genotypes as drought-tolerant genotypes and nominated them for wide spreading cultivation.”
t0“SOYBEANS”
Claim · model-written summary
The authors propose DHN2 expression as a drought tolerance screening marker.
- Taxon
- soybeanGlycine maxe0
- Gene
- DHN2e0
- Outcome
- selection marker for drought tolerance screeninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the expression level of DHN2 gene could be used as a selection marker for drought tolerance screening in soybean genotypes.”