Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1097536 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| Other | ||||
| SRR28587243_1.fastq.gz | Fastqsanger.gz | |||
| SRR28587243_2.fastq.gz | Fastqsanger.gz | |||
| SRR28587244_1.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 27 |
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Project description:Venomous animals have traditionally been studied from a proteomic (but also transcriptomic) perspective, often overlooking the study of venom from a genomic point of view until recently. The rise of genomics has led to an increase in the number of reference genomes for non-model organisms, including venomous taxa, enabling new questions on venom evolution from a genomic context. Although venomous snakes are the fundamental model system in venom research, the number of high-quality reference genomes in the group remains limited. In this study, we present a high-quality chromosome-level reference genome for the Arabian horned viper (Cerastes gasperettii), a highly venomous snake native to the Arabian Peninsula. Our highly-contiguous genome allowed us to explore macrochromosomal rearrangements within the Viperidae family, as well as across squamate reptile evolution. Furthermore, we identified a total of ten different toxins conforming the venom’s core, in line with our proteomic results. We also compared microsyntenic changes in the main toxin gene clusters with those of other venomous snake species, highlighting the pivotal role of gene duplication and loss in the emergence and diversification of the two main toxin families for Cerastes gasperettii. Using Illumina data, we reconstructed the demographic history and genome-wide diversity of the species, revealing how historical aridity likely drove population expansions. Finally, this study highlights the importance of using long-read sequencing as well as chromosome-level reference genomes to disentangle the origin and diversification of toxin families in venomous species.
2025-02-18 | PXD060783 | Pride
Project description:Venomous animals have traditionally been studied from a proteomic (but also transcriptomic) perspective, often overlooking the study of venom from a genomic point of view until recently. The rise of genomics has led to an increase in the number of reference genomes for non-model organisms, including venomous taxa, enabling new questions on venom evolution from a genomic context. Although venomous snakes are the fundamental model system in venom research, the number of high-quality reference genomes in the group remains limited. In this study, we present a high-quality chromosome-level reference genome for the Arabian horned viper (Cerastes gasperettii), a highly venomous snake native to the Arabian Peninsula. Our highly-contiguous genome allowed us to explore macrochromosomal rearrangements within the Viperidae family, as well as across squamate reptile evolution. Furthermore, we identified a total of ten different toxins conforming the venom’s core, in line with our proteomic results. We also compared microsyntenic changes in the main toxin gene clusters with those of other venomous snake species, highlighting the pivotal role of gene duplication and loss in the emergence and diversification of the two main toxin families for Cerastes gasperettii. Using Illumina data, we reconstructed the demographic history and genome-wide diversity of the species, revealing how historical aridity likely drove population expansions. Finally, this study highlights the importance of using long-read sequencing as well as chromosome-level reference genomes to disentangle the origin and diversification of toxin families in venomous species.
2025-02-18 | PXD060777 | Pride
Project description:Crab is one of the major source for V. parahaemolyticus outbreak among aquatic products in Northeast Asian due to improperly cooking and wound infection by mishandling. However, there is no report on whole genome sequence of V. parahaemolyticus isolated from contaminated crab, thus no information is available for major virulence factors about V. parahaemolyticus obtained from crab. Therefore, the analysis of transcriptome of isolated V. parahaemolyticus from crab products are necessary to investigate potential risk of foodborne illness by contaminated products.
2017-06-21 | GSE100267 | GEO
Project description:Background The Lycophyta species are the extant taxa most similar to early vascular plants that were once abundant on Earth. However, their distribution has greatly diminished. So far, the absence of chromosome level assembled lycophyte genomes, has hindered our understanding of evolution and environmental adaption of lycophytes. Findings We present the reference genome of the tetraploid aquatic quillwort, Isoetes sinensis, a lycophyte. This genome represents the first chromosome-level assembled genome of a tetraploid seed-free plant. Comparison of genomes between I. sinensis and the diploid I. taiwanensis revealed of genomic features and polyploid of lycophytes. Comparison of the I. sinensis genome with those of other species representing the evolutionary lineages of green plants revealed the inherited genetic tools for transcriptional regulation and most phytohormones in I. sinensis. The presence and absence of key genes related to development and stress responses provides insights into environmental adaption of lycophytes. Conclusions The high-quality reference genome and genomic analysis presented in this study are crucial for future genetic research and the conservation of not only I. sinensis but also other lycophytes.
2023-08-21 | GSE198194 | GEO