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Full-Text Articles in Life Sciences

Genome-Wide Analysis Of Acute Low Salinity Tolerance In The Eastern Oyster Crassostrea Virginica And Potential Of Genomic Selection For Trait Improvement, Alexandra J. Mccarty, Standish K. Allen Jr., Louis V. Plough Jan 2022

Genome-Wide Analysis Of Acute Low Salinity Tolerance In The Eastern Oyster Crassostrea Virginica And Potential Of Genomic Selection For Trait Improvement, Alexandra J. Mccarty, Standish K. Allen Jr., Louis V. Plough

VIMS Articles

As the global demand for seafood increases, research into the genetic basis of traits that can increase aquaculture production is critical. The eastern oyster (Crassostrea virginica) is an important aquaculture species along the Atlantic and Gulf Coasts of the United States, but increases in heavy rainfall events expose oysters to acute low salinity conditions, which negatively impact production. Low salinity survival is known to be a moderately heritable trait, but the genetic architecture underlying this trait is still poorly understood. In this study, we used ddRAD sequencing to generate genome-wide single-nucleotide polymorphism (SNP) data for four F2 …


Low Impact Of Different Snp Panels From Two Building-Loci Pipelines On Rad-Seq Population Genomic Metrics: Case Study On Five Diverse Aquatic Species, Adrian Casanova, Francesco Maroso, (...), Ana Verissimo, Et Al Jan 2021

Low Impact Of Different Snp Panels From Two Building-Loci Pipelines On Rad-Seq Population Genomic Metrics: Case Study On Five Diverse Aquatic Species, Adrian Casanova, Francesco Maroso, (...), Ana Verissimo, Et Al

VIMS Articles

The irruption of Next-generation sequencing (NGS) and restriction site-associated DNA sequencing(RAD-seq) in the last decade has led to the identification of thousands of molecular markers and their genotyping for refined genomic screening. This approach has been especially useful for non-model organisms with limited genomic resources. Many building-loci pipelines have been developed to obtain robust single nucleotide polymorphism (SNPs) genotyping datasets using a de novo RAD-seq approach, i.e. without reference genomes.Here, the performances of two building-loci pipelines, STACKS 2 and Meyer’s 2b-RAD v2.1 pipeline, were compared using a diverse set of aquatic species representing different genomic and/or population structure scenarios. Two …


Population Genomics And Phylogeography Of A Benthic Coastal Shark (Scyliorhinus Canicula) Using 2b-Rad Single Nucleotide Polymorphisms, Alice Manuzzi, Lorenzo Zane, Antonio Munoz-Merida, Andrew M. Griffiths, Ana Verissimo Dec 2018

Population Genomics And Phylogeography Of A Benthic Coastal Shark (Scyliorhinus Canicula) Using 2b-Rad Single Nucleotide Polymorphisms, Alice Manuzzi, Lorenzo Zane, Antonio Munoz-Merida, Andrew M. Griffiths, Ana Verissimo

VIMS Articles

The existence of strong genetic structure is expected in species with limited ability to disperse and philopatric behaviour. These life-history traits are found in many small benthic elasmobranchs, such as in the small-spotted catshark (Scyliorhinus canicula). However, no evidence of genetic structure was found across its northeastern Atlantic (NEA) range using traditional molecular markers. Here, fine-scale genetic differentiation was detected between the British Isles and southern Iberia using 2674 single nucleotide polymorphism loci generated using 2b-restriction site-associated DNA (2b-RAD). Geographical distance and historical demography were two major drivers shaping the distribution of genetic diversity of S. canicula along …