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Table 5 Datasets used in the study and the corresponding experimental details

From: ONTbarcoder and MinION barcodes aid biodiversity discovery and identification by everyone, for everyone

Dataset name

Number of specimens

Fragment size, primer information

Extraction/PCR setup

PCR cleanup

ONT Library Preparation kit/Flow cell used

R10.3 Datasets

 Mixed Diptera (see Srivathsan et al. [33])

- Sanger barcodes available

511 (257 mixed Diptera, 254 Dolichopodidae)

17 negatives

658 bp HCO2198, LCO1490 [80]

Extraction Method: QuickExtract

PCR Mix:

Total volume: 20 μl

10× buffer: 2 μl

dNTPs (2.5 mM): 1.5 μl

Taq polymerase: 0.2 μl

BSA (1 mg/ml): 2 μl

Primer (5 μM): 2 μl each

DNA:2 μl

Ampure beads (Beckman Coulter)

SQK-LSK110/FLO-MIN111

 Afrotropical Phoridae (see Srivathsan et al. [35])

- Illlumina mini-barcodes available

4275 (Phoridae)

45 negatives

658 bp HCO2198, LCO1490 [75]

Extraction Method: QuickExtract

PCR Mix:

Total volume: 15.16 μl

Mastermix (CWBio): 10 μl

25 mM MgCl2: 0.16 μl

BSA (1 mg/ml): 2 μl

Primer (10 μM): 1 μl each

DNA: 1 μl

Sera-Mag beads (GE Healthcare Life Sciences) in PEG

SQK-LSK109/FLO-MIN111

 Palaearctic Phoridae (658)

9929 (Phoridae)

105 negatives

658 bp jgHCO2198, LCO1490 [80, 81]

Extraction Method: HotSHOT

PCR Mix:

Total volume: 16 μl

Mastermix (CWBio): 7 μl

BSA (1 mg/ml): 1 μl

Primer (10 μM): 1 μl each

DNA: 6 μl

Ampure beads (Beckman Coulter)

SQK-LSK110/FLO-MIN111

 Palaearctic Phoridae (313)

9932 (Phoridae)

106 negatives

313 bp m1COlintF, jgHCO2198 [79, 81]

Extraction Method: HotSHOT

PCR Mix:

Total volume: 14 μl

Mastermix (CWBio): 7 μl

BSA (1 mg/ml): 1 μl

Primer (10 μM): 1 μl each

DNA: 4 μl

Ampure beads (Beckman Coulter)

SQK-LSK110/FLO-MIN111

Flongle datasets

 Mixed Diptera subsample (see Srivathsan et al. [33])

- Sanger barcodes available

257

7 negatives

See “Mixed Diptera” entry for R10.3

See “Mixed Diptera” entry for R10.3

Ampure beads (Beckman Coulter)

SQK-LSK109/Flongle

 Chironomidae

191 (Chironomidae)

1 negative

313 bp m1COlintF, jgHCO2198 [74, 76]

Extraction Method: HotSHOT

PCR Mix:

Total volume: 14 μl

Mastermix (CWBio): 7 μl

BSA (1 mg/ml): 1 μl

Primer (10 μM): 1 μl each

DNA: 4 μl

Ampure beads (Beckman Coulter)

SQK-LSK109/Flongle