Skip to main content

Table 3 Comparisons of distribution frequency and representativeness among five different core collections constructed based on diverse sampling strategies

From: Genetic diversity and population structure analysis to construct a core collection from a large Capsicum germplasm

Evaluated parameter

Data combination

Entire germplasm collection

Gcc

Ggcc

Pcc

G + Pcc

Gg + Pcc

Number of entries (%)

7 (0.2)

53 (1.4)

76 (2.0)

76 (2.0)

240 (6.3)

3,821

Number of alleles

96

96

264

360

360

360

Continuous variables

MD %

38.28

18.89

15.85

15.35

9.45

-

CR %

13.95

50.89

96.99

97.04

98.40

-

VD %

5757.70

80.02

49.37

46.55

32.46

-

VR %

52.15

112.37

126.99

125.95

115.65

-

Categorical variables

I

0.88

0.91

0.94

0.97

0.95

0.85

I max

1.25

1.25

1.25

1.25

1.25

1.25

J’

0.77

0.79

0.78

0.81

0.80

0.73

  1. Gcc: core collection constructed based on genotype with nongroup based strategy, Ggcc: core collection constructed from entries in each cluster grouped by genotype, Pcc: core collection constructed based on phenotype, G + Pcc: core collection constructed based on combination of genotype and phenotype, Gg + Pcc: core collection constructed based on genotype and phenotype combination from each cluster grouped by genotype. Distributional aspects to validate a representativeness of core collection; MD%: the mean difference percentage, CR%: the coincidence rate, VD%: the variance difference percentage, VR%: variable rate. Genetic diversity indices to validate categorical variables; I: Shannon’s information index of diversity, I max: logarithmic number of classes in entire collection, J’: genetics evenness