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Table 3 Groupings for Impatiens spp. and biotypes of Impatiens glandulifera based on PCA and closest-relatedness diagrams

From: Differentiation between closely-related Impatiens spp. and regional biotypes of Impatiens glandulifera using a highly-simplified and inexpensive method for MALDI-TOF MS

Test sample number

PCA grouping

Strongest-match linkage group

Identity

Grouping accuracy (%)

Comment

1, 5, 8, 12

3

1

Impatiens noli-tangere

100

–

3, 17, 18, 20

2

2

Impatiens scabrida

100

–

2, 6, 11, 22

1

3

Impatiens parviflora

100

–

14, 16, 19, 21

Unclear

4

Impatiens glandulifera originally collected from Harmondsworth Moor

100

–

4, 9, 10, 24

Unclear

5 (part)

Impatiens glandulifera originally collected from Silwood Park

75

Correct grouping = samples 4, 10, 13, and 24

7, 13, 15, 23

Unclear

5 (part)

Impatiens balsamina

75

Correct grouping = samples 7, 9, 15, and 23