Publications by authors named "Barsha Poudel"

Article Synopsis
  • Barley grass serves as an alternative host for a significant pathogen causing net blotch in barley, highlighting its role in disease spread.
  • This study identifies the first instance of sexual recombination between isolates from barley and barley grass, confirmed through advanced genomic analysis.
  • The findings challenge previous beliefs about the genetic separation of these isolates, indicating a potential risk of new, more virulent pathotypes emerging, which could threaten commercial barley crops.
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Charcoal rot is an important soilborne disease caused by a range of Macrophomina species, which affects a broad range of commercially important crops worldwide. Even though Macrophomina species are fungal pathogens of substantial economic importance, their mechanism of pathogenicity and host spectrum are poorly understood. There is an urgent need to better understand the biology, epidemiology, and evolution of Macrophomina species, which, in turn, will aid in improving charcoal rot management strategies.

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Despite the substantial economic impact of pv. on legume production worldwide, the genetic basis of its pathogenicity and potential host association is poorly understood. The production of high-quality reference genome assemblies of pv.

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is a soil-borne phytopathogenic fungus that causes charcoal rot in several plant species, including sorghum. We constructed a draft genome of isolate BRIP 70780a from sorghum, using long-read native DNA from MinION sequencing, which was error-corrected using short-read Illumina MiSeq reads. The draft genome, consisting of 22 contigs with an N of 4,257,441 bp, 99.

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Patients with high-grade serous ovarian cancer (HGSC) have experienced little improvement in overall survival, and standard treatment has not advanced beyond platinum-based combination chemotherapy, during the past 30 years. To understand the drivers of clinical phenotypes better, here we use whole-genome sequencing of tumour and germline DNA samples from 92 patients with primary refractory, resistant, sensitive and matched acquired resistant disease. We show that gene breakage commonly inactivates the tumour suppressors RB1, NF1, RAD51B and PTEN in HGSC, and contributes to acquired chemotherapy resistance.

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Pancreatic cancer remains one of the most lethal of malignancies and a major health burden. We performed whole-genome sequencing and copy number variation (CNV) analysis of 100 pancreatic ductal adenocarcinomas (PDACs). Chromosomal rearrangements leading to gene disruption were prevalent, affecting genes known to be important in pancreatic cancer (TP53, SMAD4, CDKN2A, ARID1A and ROBO2) and new candidate drivers of pancreatic carcinogenesis (KDM6A and PREX2).

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Article Synopsis
  • Curation of genetic variants from biomedical literature is essential for clinical and research purposes, with databases emerging as key resources, but manual curation can be time-consuming and challenging.
  • There are issues with varying nomenclature and expression for genetic variants that complicate the curation process, especially since many variants are still documented with non-standard names.
  • The paper discusses strategies for effective variant curation, including addressing challenges and the importance of standardized nomenclature to enhance the retrieval and interpretation of genetic variants.
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