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Related Concept Videos

RNA-seq03:21

RNA-seq

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RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases. 
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
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Related Experiment Video

Updated: Apr 23, 2026

DNA-based Fish Species Identification Protocol
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DNA-based Fish Species Identification Protocol

Published on: April 28, 2010

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Protocol for building a reference standard sequence library for DNA-based seafood identification.

Jonathan R Deeds, Sara M Handy, Frederick Fry

    Journal of AOAC International
    |September 19, 2014
    PubMed
    Summary

    The U.S. Food and Drug Administration (FDA) is developing a DNA sequence library for seafood identification. This ensures accurate seafood labeling for consumers nationwide.

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    Area of Science:

    • Genomics
    • Food Safety
    • Taxonomy

    Background:

    • The U.S. Food and Drug Administration (FDA) now uses DNA sequencing for seafood species identification.
    • Accurate taxonomic authentication of reference specimens is crucial for this method.
    • A standardized reference sequence library is needed to support regulatory compliance.

    Purpose of the Study:

    • To detail the construction of a reference standard DNA sequence library for seafood.
    • To ensure accurate species identification and labeling of seafood products in U.S. commerce.
    • To provide an example dataset of fish reference standards.

    Main Methods:

    • Collaborative efforts between the FDA and partners to build the reference library.
    • Utilizing authoritative taxonomic authentication for reference specimens.
    • Collecting and storing reference specimens, such as fish from the Gulf of Mexico.

    Main Results:

    • A growing library of standard DNA sequences for seafood identification is being established.
    • An example dataset includes 117 fish reference standards (94 species, 43 families, 15 orders).
    • These reference standards were collected over four years from the Gulf of Mexico.

    Conclusions:

    • The developed reference library will support the FDA's DNA-based seafood identification protocols.
    • Accurate seafood labeling is enhanced through the use of authenticated DNA reference standards.
    • This initiative contributes to consumer protection and fair trade in the seafood market.