Soil and water salinity is one of the major abiotic stresses that reduce growth productivity in food crops including rice. The lack congruence salt tolerance quantitative trait loci (QTLs) multiple genetic backgrounds environments a hindrance for undertaking marker-assisted selection (MAS). A genome-wide meta-analysis QTLs controlling seedling-stage was conducted rice using QTL information from 12 studies. Using consensus map, 11 meta-QTLs three traits with smaller confidence intervals were...

Background The coupling of biotic and abiotic stresses leads to high yield losses in rainfed rice (Oryza sativa L.) growing areas. While several studies target these independently, breeding strategies combat multiple seldom exist. This study reports an integrated strategy that combines QTL mapping phenotypic selection develop lines with grain (GY) under drought stress non-stress conditions, tolerance blast. Methodology A blast-tolerant BC2F3-derived population was developed from the cross...

Salinity is an important abiotic stress affecting rice production worldwide. Development of salt tolerant varieties the most feasible approach for improving productivity in affected soils. In rice, seedling stage salinity tolerance crucial better crop establishment. Quantitative trait loci (QTL) mapping using introgression lines (ILs) useful identification and simultaneous transfer desirable alleles into elite genetic background. present study, 138 ILs derived from cross between a high...

In July 2023, panicle and leaf blight-like symptoms were observed from the rice (Oryza sativa) variety, PVL03, in research field plots Louisiana (Rayne, LA 70578, USA; 30.21330⁰ N, 92.37309⁰ W). We that chlorosis started on tips spread throughout whole leaf. also (grain discoloration of hulls) infected plants at heading stage, which ranged dark brown to black. Disease incidences approximately 70% plots. Five sampled five (one plant per plot). Leaf tissues including both symptomatic healthy...

Rice (Oryza sativa), as a staple crop feeding significant portion of the global population, particularly in Asian countries, faces constant threats from various diseases jeopardizing food security. A precise understanding disease resistance mechanisms is crucial for developing resilient rice varieties. Traditional genetic mapping methods, such QTL mapping, provide valuable insights into basis diseases. However, complex nature demands holistic approach to gain an accurate knowledge it. Omics...

Abstract Although flowering in rice has been extensively investigated, few studies focused on genetic interactions. Flowering evaluation of two recombinant inbred line (RIL) populations involving photo-insensitive cultivars, Bengal and Cypress, a weedy accession, PSRR-1, under natural long-day (LD) conditions, revealed six to ten quantitative trait loci (QTLs) major QTL interaction. In addition the validation several previously cloned genes using an introgression lines (IL) population novel...

Bacterial panicle blight (BPB) and sheath (SB) are major diseases of rice few cultivars have shown a high level resistance to these diseases. A recombinant inbred line (RIL) population developed from the U.S. Jupiter (moderately resistant) Trenasse (susceptible) was investigated identify loci associated with partial disease BPB SB. Disease phenotypes in SB, as well days-to-heading (DTH) trait, were evaluated field. DTH correlated SB diseases, while positively field trials this RIL...

Bacterial panicle blight (BPB) is a disease of rice characterized by grain discoloration or sheath rot caused mainly Burkholderia glumae . The DedA family highly conserved membrane protein found in most bacterial genomes that likely function as transporters.

We screened soybean-associated bacterial strains from soybean fields in Louisiana, USA, based on various biological activities beneficial for growth and health. Furthermore, we constructed sets of synthetic community (SBC) containing multiple bacteria (SABB) having different types tested their effects seed treatment disease resistance. found that all three SBC (i.e., Set-1, Set-2, Set-3) promoted yield significantly through treatment, showing better performance than the most effective SABB...

Rice, as a staple crop feeding billions, faces constant threats from various diseases jeopardizing global food security. Precise understanding of disease resistance mechanisms is crucial for developing resilient rice varieties. Traditional genetic mapping methods, such QTL mapping, provide valuable insights into the basis diseases. However, complex nature demands holistic approach to gain accurate knowledge it. Omics technologies, including genomics, transcriptomics, proteomics, and...

The plant pathogenic bacterium Burkholderia glumae causes bacterial panicle blight (BPB) in rice-growing areas worldwide. It has been widely accepted that an acyl-homoserine lactone (AHL)-type quorum sensing (QS) system encoded by tofI and tofR genes (TofIR QS) is a key regulatory mechanism underlying the pathogenesis of B . In addition, qsmR , which encodes IclR-family protein, considered important part TofIR QS. However, present study with three strains representing different revealed this...

Bacterial panicle blight caused by Burkholderia glumae is a major disease in rice production worldwide. Currently, only few whole-genome sequences of B. strains isolated the United States are available. Here, we report complete genome sequence four strains, including three virulent (336gr-1, 411gr-6, and 957856-41-c) nonpathogenic strain 257sh-1, which were from fields Louisiana 957856-41-c, 257sh-1) Arkansas (411gr-6). The data will contribute to investigations molecular mechanism...