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. 2023 May 18;9(5):587. doi: 10.3390/jof9050587

Table 5.

Primers and corresponding assays for diagnosis of Fusarium spp. on soybean.

Target Gene Target Species (Specificity) Primer/Probe (Combination) Sequence (5′-3′) Tm (°C) Fragment Length (bp) Assay Ref.
ITS1 F. solani f. sp. phaseoli FspF ACCCCCTAACTCTTGTTATATCC 60 957–958 PCR [82]
FspR GCGCAATACCCTGAGGCG
TEF1 F. solani f. sp. phaseoli Effp-1 AACCCCGCCCGAGGACTCA 72 562 PCR/qPCR [84]
Effp-2 AGACATGAGCGATGAGAGGCA
TEF1 F. solani f. sp. glycines FsgEF1 GAGTCGGTTAGCTTCTGTC 66 a/56 237 PCR b [90]
FsgEF2 GCGCGCCTTGCTATTCTCC
mtSSU F. solani f. sp. glycines Fsg1 GTCTTCTAGGATGGGCTGGT 66 b/56 438 PCR c [90]
Fsg2 CATTTAATGCCTAGTCCCCTATCA
mtSSU F. solani f. sp. glycines Fsg-q-1F GATACCCAAGTAGTCTTTGCAGTAAATG 60 qPCR [91]
Fsg-q-1R TTAATGCCTAGTCCCCTATCAACAT
Fsg-q-1P 6FAM-TGAATGCCATAGGTCAGAT-MGBNFQ
mtSSU F. solani f. sp. glycines FSGq1 AACCCTTTGTGAACATACC 60 qPCR [92]
FSGq2 CCCTCCGGATCCCAG
FSG-MGB probe 6FAM-TCTTCTAGGATGGGCTGGT-MGBNFQ
FvTox1 F. virguliforme FV-F GCAGGCCATGTTGGTTCTGTA 60 200 qPCR [96]
FV-R GCACGTAAAGTGAGTCGTCTCATC
FV-MGB probe 6FAM-ACTCAGCGCCCAGGA-MGBNFQ
IGS F. virguliforme FvIGS-F1 GGTGGTGCGGAAGGTCT 66 qPCR [95]
FvIGS-R3 CCCTACACCTTTCGTACCAT
FvIGS-Probe2 6FAM-ATAGGGTAGGCGGATCTGACTTGGCG-TAMRA
IGS F. virguliforme F6-3 GTAAGTGAGATTTAGTCTAGGGTAGGTGAC 60 qPCR [97]
R6 GGGACCACCTACCCTACACCTACT
FvPrb-3 6FAM-TTTGGTCTAGGGTAGGCCG-MGBNFQ
IGS F. brasiliense Fb_F2 AGGTCAGATTTGGTATAGGGTAGGTGAGA 67 f 130 qPCR d [98]
Fb_R2 CGGACCATCCGTCTGGGAATTT 66 f
Fb_Prb1 5HEX-TGGGATGCCCT+AATTTTT+ACGG-3IABkFQ e 65 f
TEF1 F. acuminatum FacuF TCGCGCACTACATGTCTT 54 g 142 qPCR [99]
FacuR AGAGAGCGATATCAATGGTGA 53 g
FacuP FAM-AACCACTGG/ZEN/ACAATAGGAAGCCGC 61 g
TEF1 F. graminearum FgraF CTCTTCCCACAAACCATTCC 53 g 104 qPCR [99]
FgraR TACTTGAAGGAACCCTTACC 51 g
FgraP FAM-ACCACCTGT/ZEN/CAATAGGAAGCCGCC 63 g
TEF1 F. proliferatum FproF GCGTTTTTGCCCTTTCCTGT 57 g 123 qPCR [99]
FproR AACCCAGGCGTACTTGAAGG 57 g
FproP FAM-AGGAAGCCG/ZEN/CTGAGCTCGGT 64 g
TEF1 F. solani FsolF AAACCCTCATCGCGATCTG 55 g 108 qPCE [99]
FsolR AGTGACCGGTCTGTAGATGA 55 g
FsolP FAM-CCTGGTATC/ZEN/TCGGGCGGG 60 g
IGS F. equiseti FequiF TGTTGGGACTCGCGGTAA 56 g 94 qPCR [99]
FequiR GATTACCAGTAACGAGGTGTA 51 g
FequiP FAM-CACGTCGAG/ZEN/CTTCCATAGCGTAGT 60 g
IGS F. oxysporum FoxyF CCGTCGATAGGAGTTCCGTC 57 80 qPCR [99]
FoxyR TCGAACCGACCATCTCCAAG 57
FoxyP FAM-TGGACGGTG/ZEN/CAGGGTAGG 64

a First is the first melting temperature in the touchdown program, the other is the last. b For optimal specificity, a protocol for touchdown PCR is used. For optimal sensitivity, a nested PCR is described using additional general TEF1 primers for the first round. c For optimal specificity, a protocol for touchdown PCR is used. For optimal sensitivity, a nested PCR is described using additional general mtDNA primers (NMS) for the first round. d The assay was designed for duplexing with the primer/probe set for F. virguliforme above. e The + sign indicates that the next base is a locked nucleic acid (LNA) residue. These are necessary because the probe covers only two nucleotides that differ between F. brasiliense and other Fusarium spp., i.e., F. virguliforme. Do not be discouraged when checking Figure 1 in [98]; there the probe sequence is given wrongly and the position is off by one base, but the sequence given here is correct. f Calculated primer melting temperatures. The actual annealing temperature used was not reported. g Calculated primer melting temperatures. All these assays were run with an annealing temperature of 60 °C.