DNA-based methods for monitoring invasive species: a review and prospectus |
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Authors: | John A Darling Michael J Blum |
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Institution: | (1) Molecular Ecology Research Branch, National Exposure Research Laboratory, US Environmental Protection Agency, 27 West Martin Luther King Boulevard, Cincinnati, OH 45268, USA |
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Abstract: | The recent explosion of interest in DNA-based tools for species identification has prompted widespread speculation on the
future availability of inexpensive, rapid, and accurate means of identifying specimens and assessing biodiversity. One applied
field that may benefit dramatically from the development of such technologies is the detection, identification, and monitoring
of invasive species. Recent studies have demonstrated the feasibility of DNA-based tools for such important tasks as confirmation
of specimen identity and targeted screening for known or anticipated invaders. However, significant technological hurdles
must be overcome before more ambitious applications, including estimation of propagule pressure and comprehensive surveys
of complex environmental samples, are to be realized. Here we review existing methods, examine the technical difficulties
associated with development of more sophisticated tools, and consider the potential utility of these DNA-based technologies
for various applications relevant to invasive species monitoring. |
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Keywords: | Detection DNA barcode DNA-based identification DNA taxonomy Invasive species Microarray Monitoring PCR |
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