Abstract
The responses of selected rice accessions to variant salt concentrations and in-silico analysis of DREB1A gene among diploid Oryza species were evaluated. Ten (10) rice accessions were selected based on their popularity in farmer's fields. Seedlings of each variety (one per pot) were watered with variant salt concentrations of 0mM, 100mM and 200mM for 21 days. The morpho-physiological characters (plant height, number of tillers, root length and dry weight) were evaluated using a standard evaluation system for rice. The reference sequences of OsDREB1A and AtDREB1A were used as queries to search against the 10 diploid Oryza species in the BLASTN of the PlantEnsembl database to reveal DREB1A orthologs. The retrieved DREB1A orthologs were used to compute the physicochemical properties of their proteins, gene motifs, intron-exon architecture and phylogenetic relationship. The studied accessions showed significant differences (p<0.05) in morpho-physiological responses to salinity. The accessions Zaqama, Yar-Garnaki, Yar-Yuti, Samira and Chana-Beru performed better under salt stress and there was no significant difference (p>0.05) between the control and salt-treated groups. Additionally, the in-silico analysis of DREB1A gene identified 10 orthologs with conserved single transcript, AP2 domain and unstable protein (characteristics of TFs) across the 10 diploid Oryza species. Phylogenetic analysis revealed 3 clusters of African rice and its progenitor, Asian rice and their relatives and O. brachyantha/O. punctata complex, similar to the evolution of rice species. Conclusively, salt stress affects rice in a concentration-dependent manner and DREB1A gene is a conserved plant transcription factor (TF) across diploid Oryza species.
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Claims 5
Claim · model-written summary
The rice accessions differed significantly in morpho-physiological responses to salinity.
- Taxon
- rice
Oryza sativae0 - Treatment
- salinitye1
- Outcome
- morpho-physiological responses to salinitye1
- Qualifier
- p<0.05e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The responses of selected rice accessions to variant salt concentrations and in-silico analysis of DREB1A gene among diploid Oryza species were evaluated”
e1“The studied accessions showed significant differences (p<0.05) in morpho-physiological responses to salinity”
Claim · model-written summary
Accessions Zaqama, Yar-Garnaki, Yar-Yuti, Samira and Chana-Beru performed better under salt stress than the control.
- Taxon
- riceOryza sativae0
- Material
- Zaqama, Yar-Garnaki, Yar-Yuti, Samira and Chana-Berue3
- Treatment
- salt stresse3
- Outcome
- morpho-physiological characterse4
- Direction
- performed bettere3
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The responses of selected rice accessions to variant salt concentrations and in-silico analysis of DREB1A gene among diploid Oryza species were evaluated”
e3“The accessions Zaqama, Yar-Garnaki, Yar-Yuti, Samira and Chana-Beru performed better under salt stress and there was no significant difference (p>0.05) between the control and salt-treated groups”
e4“The morpho-physiological characters (plant height, number of tillers, root length and dry weight) were evaluated using a standard evaluation system for rice”
Claim · model-written summary
For accessions Zaqama, Yar-Garnaki, Yar-Yuti, Samira and Chana-Beru, there was no significant difference in morpho-physiological characters between control and salt-treated plants.
- Taxon
- riceOryza sativae0
- Material
- Zaqama, Yar-Garnaki, Yar-Yuti, Samira and Chana-Berue3
- Treatment
- salt stresse3
- Outcome
- morpho-physiological characterse4
- Direction
- no significant differencee3
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The responses of selected rice accessions to variant salt concentrations and in-silico analysis of DREB1A gene among diploid Oryza species were evaluated”
e3“The accessions Zaqama, Yar-Garnaki, Yar-Yuti, Samira and Chana-Beru performed better under salt stress and there was no significant difference (p>0.05) between the control and salt-treated groups”
e4“The morpho-physiological characters (plant height, number of tillers, root length and dry weight) were evaluated using a standard evaluation system for rice”
Claim · model-written summary
The in-silico analysis identified 10 DREB1A orthologs with a conserved single transcript, AP2 domain and unstable protein across the 10 diploid Oryza species.
Verbatim
e5“the in-silico analysis of DREB1A gene identified 10 orthologs with conserved single transcript, AP2 domain and unstable protein (characteristics of TFs) across the 10 diploid Oryza species”
Claim · model-written summary
Phylogenetic analysis revealed 3 clusters of African rice, Asian rice and their relatives, and the O. brachyantha/O. punctata complex.
- Taxon
- riceOryza sativae6
- Outcome
- clusterse6
- Value
- 3 clusterse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Phylogenetic analysis revealed 3 clusters of African rice and its progenitor, Asian rice and their relatives and O. brachyantha/O. punctata complex”