A5076086343- GABA and Rice Research
- Rice Cultivation and Yield Improvement
- Plant tissue culture and regeneration
- Plant Stress Responses and Tolerance
- Genetic Mapping and Diversity in Plants and Animals
- Plant Genetic and Mutation Studies
- Plant Molecular Biology Research
- Transgenic Plants and Applications
- Plant Micronutrient Interactions and Effects
- Photosynthetic Processes and Mechanisms
- Chromosomal and Genetic Variations
- Aluminum toxicity and tolerance in plants and animals
- Plant-Microbe Interactions and Immunity
- Plant nutrient uptake and metabolism
- CRISPR and Genetic Engineering
- Seed Germination and Physiology
- Fungal Biology and Applications
- Legume Nitrogen Fixing Symbiosis
- Agricultural Systems and Practices
- Plant responses to water stress
- Birth, Development, and Health
- vaccines and immunoinformatics approaches
- Plant Gene Expression Analysis
- Genetically Modified Organisms Research
- Silicon Effects in Agriculture
University of Dhaka
2015-2024
Abstract This study characterized Pokkali-derived quantitative trait loci (QTLs) for seedling stage salinity tolerance in preparation use marker-assisted breeding. An analysis of 100 SSR markers on 140 IR29/Pokkali recombinant inbred lines (RILs) confirmed the location Saltol QTL chromosome 1 and identified additional QTLs associated with tolerance. Analysis a series backcross near-isogenic (NILs) developed to better characterize effect locus revealed that mainly acted control shoot Na + /K...
The rice landrace Horkuch, endemic to the southern saline coast of Bangladesh, is known have salt tolerance traits and can therefore contribute a high yielding recipient for breeding purposes. In this study, we reciprocally crossed Horkuch with but sensitive IR29 detect complement genes that were responsible conferring versus sensitivity at seedling developmental stage. We looked tolerant F3 families from individual F2 segregating plants analyzed them differential gene expressions using...
Soil salinity is one of the most challenging problems that restricts normal growth and production rice worldwide. It has therefore become very important to produce more saline tolerant varieties. This study shows constitutive over-expression vacuolar Na+/H+ antiporter gene (OsNHX1) from landrace (Pokkali) attainment enhanced level tolerance in transgenic plants. also inclusion complete un-translated regions alternatively spliced OsNHX1 provides a higher rice. Two separate transformation...
Plants need to maintain a low Na+/K+ ratio for their survival and growth when there is high sodium concentration in soil. Under these circumstances, the High Affinity K+ Transporter (HKT) its homologs are known perform critical role with HKT1;5 as major player maintaining Na+ concentration. Preferential expression of roots compared shoots was observed rice rice-like genotypes from real time PCR, microarray RNAseq experiments data. Its trend generally higher under increasing salt stress...
Abstract Background Plant growth-promoting endophytic fungi (PGPEF) that are associated with halophytes have the potential to boost crop salinity tolerance and productivity. This in turn has of enabling improving cultivation practices coastal lands affected by salt stress. Methods Endophytic from wild halophytic rice Oryza coarctata were isolated, characterized, identified, studied for their effects on all developing stages plant growth yields both without Key results In this study, three...
Abstract Global increase in salinity levels has made it imperative to identify novel sources of genetic variation for tolerance traits, especially rice. The rice landrace Horkuch, endemic the saline coastal area Bangladesh, was used this study as source reciprocal crosses with sensitive but high-yielding IR29 variety discovering transcriptional associated salt resulting populations. cytoplasmic effect Horkuch background leaves under stress showed functional enrichment signal transduction,...
With 2 figures and 5 tables Abstract A population of BC 3 F 4 rice lines derived from a cross salt‐tolerant Pokkali sensitive IR29 was developed for validation the Saltol QTL comparison this effect with background QTLs. Specific progenies advanced backcross were found to have similar salinity tolerance at seedling stage even without alleles. Therefore, additional QTLs responsible seedling‐stage investigated by screening genotyping markers multiple loci throughout 12 chromosomes. Single...
Oryza coarctata (2n = 4X 48, KKLL) is an allotetraploid, undomesticated relative of rice and the only species in genus with tolerance to high salinity submergence. Therefore, it contains important stress genes/factors for rice. The initial draft genome published was limited by data technical restrictions, leading incomplete highly fragmented assembly. This study reports a new, contiguous chromosome-level assembly annotation O. coarctata. PacBio high-quality HiFi reads generated 460 contigs...
Nitric oxide (NO) and glutathione (GSH) are 2 vital components of the antioxidant system that play diverse roles in plant responses to abiotic stresses. Recently, we have reported exogenous supply both these molecules reduced copper (Cu) toxicity rice seedlings. Individual as well co-treatment sodium nitroprusside (SNP: a NO donor) GSH with Cu significantly mitigated adverse effects Cu, evident level oxidative markers such H2O2, superoxide (O2·−), malondialdehyde (MDA), proline (Pro)....
Association of single nucleotide polymorphisms (SNP) rs7756992 A/G and rs7754840 G/C cyclin-dependent kinase 5 regulatory subunit-associated protein 1-like 1 (CDKAL1) gene with the susceptibility gestational diabetes mellitus (GDM) has been studied in a group Bangladeshi women. In this case-control study, 212 GDM patients 256 control subjects were genotyped for by PCR-RFLP TaqMan™ allelic discrimination assay method respectively. Genotyping results confirmed DNA sequencing replicated assay....
Good donors in breeding for salt tolerance are a prerequisite food security under changing climatic conditions. Horkuch, farmer-popular tolerant rice (Oryza sativa L.) variety from the south-west coast of Bangladesh was characterised up to maturity NaCl stress, together with modern (BRRI dhan41), sensitive control dhan29) and Pokkali, salt-tolerant benchmark rice. Horkuch had low reduction shoot biomass, Na : K ratio flag leaves, percent yield good partitioning older maintained high levels...
Bangladesh is a reservoir of diverse rice germplasm and home to many landraces with unique, important traits. Molecular characterization these value for their identification, preservation, potential use in breeding programs. Thirty-eight from different regions including some high yielding BRRI varieties were analyzed by 34 polymorphic microsatellite markers total 258 reproducible alleles. The analysis could locate unique identifiers 21 genotypes, making the latter potentially amenable...
Salinity has a significant negative impact on production of rice. To cope with the increased soil salinity due to climate change, we need develop salt tolerant rice varieties that can maintain their high yield. Rice landraces indigenous coastal Bangladesh be great resource study genetic basis adaptation. In this study, implemented QTL analysis framework reciprocal mapping population developed from landrace Horkuch and yielding variety IR29. Our aim was detect loci contributes adaptive...
Reverse transcription loop‐mediated isothermal amplification (RT‐LAMP) is a molecular method that can detect SARS‐CoV‐2 in shorter time than the current gold‐standard diagnostic reverse transcription‐polymerase chain reaction (RT‐PCR). However, previously developed RT‐LAMP assays have mostly relied on highly subjective visual colorimetric interpretation. In this study, an assay was with quantitative measurement of pH using novel portable biosensor compared to qualitative interpretation and...
To better understand the salt tolerance of wild rice,
At the cellular level, Salt Overly Sensitive (SOS) signaling pathway comprising SOS3, SOS2, and SOS1 has been proposed to mediate under salt stress maintain ion (Na+) homeostasis. In this regulatory pathway, both OsSOS1 encoding plasma membrane OsNHX1 vacuolar Na+/H+ antiporters are regulated by SOS3?SOS2 protein kinase complex. present study, rice variety BRRI dhan28 - which is popular with farmers high yielding, but sensitive, was transformed gene isolated from tolerant Pokkali driven...