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Table 2 Analysis of the five candidate barcode loci of Uncaria

From: Molecular identification of Uncaria (Gouteng) through DNA barcoding

Items ITS2 rbcL psbAtrnH ITS matK
Species numbers 14 15 10 14 7
Accession no. 77 63 49 58 10
Length range (average) (bp) 210–221 (220) 512–656 (608) 235–315 (287) 607–621 (616) 757–814 (808)
Average of GC content (%) 66.3 43.0 24.8 62.8 33.1
No. of variable sites in all taxa 41 16 173 86 13
No. of indels in all taxa 2 0 39 14 0
BLAST method (identification efficiency [%]) 87.0 42.9 95.9 91.4 80
Nearest distance method (identification efficiency [%]) 92.2 76.2 95.9 84.5 80