Eimeria necatrix genome
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Project description:In a collaboration between Wellcome Trust Sanger Institute (WTSI), Royal Veterinary College (RVC) and King Abdullah University of Science and Technology (KAUST), we have sequenced, assembled and annotated the genome of Eimeria maxima Weybridge.
| PRJEB4864 | ENA
Project description:In a collaboration between Wellcome Trust Sanger Institute (WTSI), Royal Veterinary College (RVC) and King Abdullah University of Science and Technology (KAUST), we have sequenced, assembled and annotated the genome of Eimeria mitis Houghton.
| PRJEB4835 | ENA
Project description:In a collaboration between Welcome Trust Sanger Institute (WTSI), Royal Veterinary College (RVC) and King Abdullah University of Science and Technology (KAUST), we have sequenced, assembled and annotated the genome of Eimeria brunetti Houghton.
| PRJEB4834 | ENA
Project description:In a collaboration between Welcome Trust Sanger Institute (WTSI), Royal Veterinary College (RVC) and King Abdullah University of Science and Technology (KAUST), we have sequenced, assembled and annotated the genome of Eimeria acervulina Houghton.
| PRJEB4832 | ENA
Project description:In a collaboration between Welcome Trust Sanger Institute (WTSI), Royal Veterinary College (RVC) and King Abdullah University of Science and Technology (KAUST), we have sequenced, assembled and annotated the genome of Eimeria praecox Houghton.
| PRJEB4836 | ENA
Project description:Enterotoxigeneic Escherichia coli (ETEC) is a leading cause of diarrhoeal infections in young children living in endemic regions in low and middle-income countries and adults travelling to these destinations. CFA/I fimbriae have been identified as the predominant colonisation factor associated with human ETEC infections. Here we used used Transposon-directed insertion-site sequencing (TraDIS) and transcriptomic analysis to identify the essential genome of the prototypical CFA/I expressing ETEC strain H10407 and uncover the survival mechanisms that enhance persistence of ETEC isolates in water and within mammalian hosts. RNA transcription profiles of H10407 were identified under different in vitro growth conditions including aerobic growth in neutral LB media (pH7); aerobic growth in acidic media (pH5); aerobic growth in alkaline media (pH9); anaerobic growth in neutral LB media (pH7); and survival in fresh water. Research work including RNA preparation and bioinformatics and statistical analyses were conducted at the Wellcome Trust Sanger Institute (WTSI) and the Westmead Institute for Medical Research (WIMR), the University of Sydney. The sequencing data was generated in the Bioscience Core Laboratory at King Abdullah University of Science and Technology (KAUST).
2021-04-21 | E-MTAB-9364 | biostudies-arrayexpress
Project description:White root rot disease caused by Rosellinia necatrix is one of the most important pathogens affecting avocado productivity in temperate, tropical and subtropical climates. Control of this disease is complex and nowadays, lies in the use of physical and chemical methods, although none have proven to be fully effective. Detailed understanding of the molecular mechanisms underlying white root rot disease has the potential of aiding future developments in disease resistance and management. In this regard, this study used RNAseq technology to compare the transcriptomic profiles of R. necatrix during infection of susceptible avocado `Dusa´ roots with that obtained from the fungus cultured in rich medium. The transcriptomes from three biological replicates of R. necatrix colonizing avocado roots (RC) and R. necatrix growing on potato dextrose agar media (PDA) were obtained using Illumina sequencing. A total of 12,104 transcripts were obtained, among which 1937 were differentially expressed genes (DEG), 137 exclusively expressed in RC and 160 and PDA. Interestingly genes involved in the production of fungal toxins, detoxification of toxic compounds, hormone biosynthesis, gene silencing and plant cell wall degradation were overexpressed during the infection process. In addition, 23 out of the 137 contigs, only expressed during R. necatrix growth on avocado roots, were predicted as candidate effector proteins (CEP) by the CSIRO tool with a probability above 60%. The PHI (Pathogen Host Interaction) database revealed that 11 R. necatrix CEP were previously annotated as effectors genes proven experimentally via pathogen-host interaction.
2020-01-08 | GSE134243 | GEO
Project description:Background: Rosellinia necatrix is the causal agent of avocado white root rot (WRR). Control of this soil-borne disease is difficult and tolerant rootstocks may represent an effective method to lessen its impact. To date, no studies on molecular mechanisms regulating the avocado plant response towards this pathogen have been undertaken. To shed light onto the mechanisms underpinning disease susceptibility and tolerance, molecular analysis of the gene's response of two contrasting-disease-reaction avocado rootstocks was assessed. Results: Gene expression profiles against R. necatrix were assessed in the susceptible 'Dusa' and the tolerant selection BG83 avocado genotypes by micro-array analysis. In 'Dusa', the early response is mainly related to redox processes and cell-wall degradation activities, all becoming more remarkable after disease progression affected photosynthetic capacity; whereas, tolerance to R. necatrix in BG83 relies on the induction of protease inhibitors and their negative regulators, as well as salt and osmotic stress related genes besides oxido-reduction processes. We identified three protease inhibitors, glu protease, trypsin and endopeptidase inhibitors, highly overexpressed in the tolerant genotype, when compared to susceptible 'Dusa', after infection with R. necatrix, reaching fold change values of 44, 34 and 16 respectively. Conclusions: The contrasting results between 'Dusa' and BG83 give new insights into the different mechanisms involved in the avocado tolerance to P. cinnamomi and R. necatrix, which are consistent with their biotrophic and necrotrophic lifestyles, respectively. The differential induction of genes involved in salt and osmotic stress in BG83 could indicate that R. necatrix penetration into the roots is associated with osmotic effects suggesting that BG83's tolerance to R. necatrix is related to the ability to withstand osmotic imbalance. In addition, the high expression of protease inhibitors in tolerant BG83 compared to susceptible 'Dusa' after infection with the pathogen, suggests the important role that these proteins could play in the defence of avocado rootstocks against R. necatrix.
2019-02-26 | GSE119140 | GEO