Research Article

Development of Rapid Isothermal Detection Methods Real-Time Fluorescence and Lateral Flow Reverse Transcription Recombinase-Aided Amplification Assay for Bovine Coronavirus

Table 1

The primers and probes, sequences of real-time RT-RAA primers and exo probe, RT-RAA-LFD primers and nfo probe.

MethodsPrimersSequences (5′→3′)Position of N (gene/bp)

Real-time RT-RAAExo probeACCCAAGTAGCGATGAGGCTATTCCGAC[FAM-dT]A[THF]G[BHQ-dT]TTCCGCCTGGCACGG-C3Spacer494–541This study
F1TATGGCACCGATATTGACGGAGTCTTCTGG412–441This study
R1GAGCAGACCTTCCTGAGCCTTCAATATAGT557–586This study
F2GATATTGACGGAGTCTTCTGGGTCGCTAGT421–450This study
R2ATGCGCGTGAAGTAGATCTGGAATTAGGAG584–612This study
F3TCGCTAGTAACCAGGCTGATGTCAATACCC442–472This study
R3CAGAATTGGCTCTACTACGCGATCCTGCAC629–658This study

RT-RAA-LFDNfo probe(FAM)ACCCAAGTAGCGATGAGGCTATTCCGACTA[THF]GTTTCCGCCTGGCACGG-C3Spacer494–541This study
FTCGCTAGTAACCAGGCTGATGTCAATACCC442–472This study
R(Biotin) GAGCAGACCTTCCTGAGCCTTCAATATAGT557–586This study

RT-PCRP1GAGCGTCCTTTGGAAATCGT[32]
P2GCTTAGTTACTTGCTGTGGC[32]

RT-qPCRP3TCGTTCTGGTAATGGCATCCT[33]
P4AGTAGCAGTTTGCTTGGGTTGAG[33]

FAM-dT: thymidine nucleotide carrying fluorescein; THF: tetrahydrofuran spacer; BHQ1-dT: thymidine nucleotide carrying black-hole Quencher-1; C3 spacer: polymerase extension blocking group; FAM: carboxyfluorescein.