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. 2022 Jan 27;12:751429. doi: 10.3389/fpls.2021.751429

TABLE 2.

Comparison of the Shannon–Weaver diversity index (SDI) of the entire lentil collections to lentil core sets derived from different datasets and strategies.

Traits Entire Corea Coreb Corec Cored Coree
Leaflet size 0.744 0.812 0.780 0.805 0.828 0.682
Growth habit 0.770 1.110 0.959 0.928 1.080 0.082
Early plant vigor 0.441 0.739 0.783 0.756 0.817 0.302
Seeding stem pigmentation 0.357 0.678 0.600 0.588 0.671 0.309
Leaf color 0.548 0.939 0.872 0.856 0.916 0.258
Leaf pubescence 1.069 1.113 1.119 1.115 1.099 1.148
Flower ground color 0.256 0.619 0.525 0.458 0.597 0.404
Tendril length 0.689 0.731 0.696 0.718 0.749 0.643
Pod pigmentation 0.016 0.121 0.085 0.082 0.140 0.004
Pod dehiscence 0.706 0.662 0.639 0.786 0.695 0.617
Pod shedding 0.770 0.799 0.689 0.871 0.809 0.622
Seed shape 0.378 0.381 0.395 0.504 0.387 0.264
Seed coat color 0.670 1.040 0.871 0.927 1.006 0.775
Pattern of seed testa 0.571 0.918 0.849 0.759 0.895 0.650
Biomass score 0.854 1.177 1.121 1.071 1.161 0.908
Lodging score 0.632 0.668 0.682 0.677 0.688 0.651
Cotyledon color 0.288 0.585 0.628 0.441 0.606 0.544
Seed thickness 1.667 1.643 1.909 1.811 1.942 1.684
Seed diameter 1.570 1.656 1.841 1.729 1.889 1.749
Days to 50% flowering 1.691 2.332 2.259 2.060 2.230 1.901
Days to 80% maturity 1.358 1.664 1.993 1.708 1.928 1.609
Plant height 1.726 2.118 2.215 2.035 2.180 1.780
Pods per plant 1.825 1.886 1.953 1.904 1.973 2.051
Seeds per pod 0.375 0.873 1.056 0.714 1.003 0.599
100-seed weight 1.466 2.124 2.128 1.855 2.126 1.832
No. of secondary branches 2.121 2.201 2.266 2.267 2.263 2.120
No. of accessions 2,324 67 71 79 170 221
Average SDI (Quantitative traits) 1.553 1.833 1.958 1.787 1.948 1.703
Average SDI (Qualitative traits) 0.574 0.770 0.723 0.726 0.773 0.521
Average SDI (Overall) 1.054 1.302 1.340 1.257 1.361 1.112

Corea, Coreb, Corec, Cored, and Coree referred to core sets generated using qualitative traits, quantitative traits, a combination of both traits, a combination of both traits and passport data, and principal component score strategy (PCSS). Bold values indicating the selected core set with maximum diversity (highest SDI value in Cored).