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ABSTRACT: Whole Genome Resequencing of aquaculture strains of coho salmon

PROVIDER: PRJNA808051 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18059600_1.fastq.gz	Fastqsanger.gz
	SRR18059600_2.fastq.gz	Fastqsanger.gz
	SRR18059601_1.fastq.gz	Fastqsanger.gz
	SRR18059601_2.fastq.gz	Fastqsanger.gz
	SRR18059602_1.fastq.gz	Fastqsanger.gz

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Project description:Whole Genome Resequencing in Coho salmon

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Keratinocytes Drive the Epithelial Hyperplasia Key to Sea Lice Resistance in Coho Salmon

Project description:Background: Salmonid species have followed markedly divergent evolutionary trajectories in their interactions with sea lice. While sea lice parasitism poses significant economic, environmental, and animal welfare challenges for Atlantic salmon (Salmo salar) aquaculture, coho salmon (Oncorhynchus kisutch) exhibit near-complete resistance to sea lice, achieved through a potent epithelial hyperplasia response leading to rapid louse detachment. The molecular mechanisms underlying these divergent responses to sea lice are unknown. Results: We characterised the cellular and molecular responses of Atlantic salmon and coho salmon to sea lice using single-nuclei RNA sequencing. Juvenile fish were exposed to copepodid sea lice (Lepeophtheirus salmonis), and lice-attached pelvic fin and skin samples were collected 12h, 24h, 36h, 48h, and 60h after exposure, along with control samples. Comparative analysis of control and treatment samples revealed an immune and wound-healing response that was common to both species, but attenuated in Atlantic salmon, potentially reflecting greater sea louse immunomodulation. Our results revealed unique but complementary roles of three layers of keratinocytes in the epithelial hyperplasia response leading to rapid sea lice rejection in coho salmon. Our results suggest that basal keratinocytes direct the expansion and mobility of intermediate and, especially, superficial keratinocytes, which eventually encapsulate the parasite. Conclusions: Our results highlight the key role of keratinocytes in coho salmon’s sea lice resistance, and the diverged biological response of the two salmonid host species when interacting with this parasite. This study has identified key pathways and candidate genes that could be manipulated using various biotechnological solutions to improve Atlantic salmon sea lice resistance.

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Coho Salmon GH Transgenic Study

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Enhanced transcriptomic responses in the Pacific salmon louse Lepeophtheirus salmonis oncorhynchi to the non-native Atlantic Salmon Salmo salar suggests increased parasite fitness

Project description:This study investigates host-specific gene expression of the Pacific salmon lice, Lepeophtheirus salmonis oncorhynchii, while parasitizing a resistant host (Coho salmon), two susceptible hosts (Atlantic salmon, Sockeye salmon), and a population with-held hosts (starved), over 48 hrs.

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Profiling of Salmo salar in two Atlantic salmon types, a wild type versus transgenic.

Project description:The influence of GH transgenesis on liver gene expression in coho salmon was examined. Gene expression in livers of transgenic salmon on a restricted ration (R) was compared to that in livers of nontransgenic control salmon (C). Keywords: Transcript profile

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Project description:Whole genome resequencing of Fraser River (British Columbia, Canada) coho salmon

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Project description:Coho salmon low-coverage whole genome re-sequencing

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Project description:Coho Salmon WGBS

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DIA Proteomics of Coho Salmon Ovaries Across 4 Stages

Project description:A better understanding of coho salmon ovarian maturation will inform both aquaculture and conservation efforts. Ovarian maturation is a complex molecular and physiological process resulting in a mature ovum that can be released for spawning and fertilization. The confluence of molecular signals and pathways that must be co-expressed to accomplish full reproductive maturity with high quality oocytes have been previously investigated with with low-resolution proteomics and transcriptomics. This dataset expands proteomics resources for coho salmon by thousands of proteins, allowing for a more in-depth assessment of the range of proteins involved in ovarian maturation and their interactions. We sampled coho salmon at four ovarian developmental stages that encompass the transition from primary to secondary (vitellogenic) growth. Data independent acquisition proteomics was applied to the dataset, resulting in the inference of >5000 proteins in the coho ovarian proteome.

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Effects of the vertically transmitted microsporidian Facilispora margolisi and the parasiticide emamectin benzoate on salmon lice (Lepeophtheirus salmonis)

Project description:This study investigates transcriptomic responses of Pacific salmon lice, Lepeophtheirus salmonis, to infection with the microsporidian Facilispora margolisi and/or exposure to emamectin benzoate (EMB), an antiparasitic agent commonly used in salmon aquaculture.

2017-08-01 | GSE94692 | GEO

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