RPA-PCR couple: an approach to expedite plant diagnostics and overcome PCR inhibitors.
Identifieur interne : 000077 ( Main/Exploration ); précédent : 000076; suivant : 000078RPA-PCR couple: an approach to expedite plant diagnostics and overcome PCR inhibitors.
Auteurs : Mustafa Ahmad Munawar [Finlande] ; Frank Martin [États-Unis] ; Anna Toljamo [Finlande] ; Harri Kokko [Finlande] ; Elina Oksanen [Finlande]Source :
- BioTechniques [ 1940-9818 ] ; 2020.
Abstract
DNA extraction can be lengthy and sometimes ends up with amplification inhibitors. We present the potential of recombinase polymerase amplification (RPA) to replace plant DNA extraction. In our rapid 'RPA-PCR couple' concept, RPA is tuned to slower reaction kinetics to promote amplification of long targets. RPA primers amplify target and some flanking regions directly from simple plant macerates. Then PCR primers exponentially amplify the target directly from the RPA reaction. We present the coupling of RPA with conventional, TaqMan and SYBR Green PCR assays. We applied the concept to strawberry Phytophthora pathogens and the Phytophthora identification marker atp9-nad9. We found RPA-PCR couple specific, sensitive and reliable. The approach may also benefit other difficult samples such as food, feces and ancient samples.
DOI: 10.2144/btn-2020-0065
PubMed: 32815734
Affiliations:
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Le document en format XML
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<front><div type="abstract" xml:lang="en">DNA extraction can be lengthy and sometimes ends up with amplification inhibitors. We present the potential of recombinase polymerase amplification (RPA) to replace plant DNA extraction. In our rapid 'RPA-PCR couple' concept, RPA is tuned to slower reaction kinetics to promote amplification of long targets. RPA primers amplify target and some flanking regions directly from simple plant macerates. Then PCR primers exponentially amplify the target directly from the RPA reaction. We present the coupling of RPA with conventional, TaqMan and SYBR Green PCR assays. We applied the concept to strawberry <i>Phytophthora</i>
pathogens and the <i>Phytophthora</i>
identification marker <i>atp9-nad9</i>
. We found RPA-PCR couple specific, sensitive and reliable. The approach may also benefit other difficult samples such as food, feces and ancient samples.</div>
</front>
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<Abstract><AbstractText>DNA extraction can be lengthy and sometimes ends up with amplification inhibitors. We present the potential of recombinase polymerase amplification (RPA) to replace plant DNA extraction. In our rapid 'RPA-PCR couple' concept, RPA is tuned to slower reaction kinetics to promote amplification of long targets. RPA primers amplify target and some flanking regions directly from simple plant macerates. Then PCR primers exponentially amplify the target directly from the RPA reaction. We present the coupling of RPA with conventional, TaqMan and SYBR Green PCR assays. We applied the concept to strawberry <i>Phytophthora</i>
pathogens and the <i>Phytophthora</i>
identification marker <i>atp9-nad9</i>
. We found RPA-PCR couple specific, sensitive and reliable. The approach may also benefit other difficult samples such as food, feces and ancient samples.</AbstractText>
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