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Table 2 Summary of genetic diversity measures for the complete accession panel and selected subgroups based on 567 polymorphic SNPs. Both within accession averages and total diversity within groups are shown as well as diversity upon sample pooling in silico. N: sample size – number of accessions (number of individuals within brackets); Na: number of alleles; HO: Observed Heterozygosity; HE: Expected Heterozygosity; F: Fixation Index

From: Geographical distribution of genetic diversity in Secale landrace and wild accessions

Group   N Na H O H E F
Biological type       
Wild Within acc. 8 (44) 1.526 0.214 0.187 −0.151
  In silico pooled   1.825 0.240 0.256 0.028
  Total   1.974 0.224 0.286 0.178
Feral Within acc. 17 (97) 1.675 0.257 0.241 −0.078
  In silico pooled   1.952 0.309 0.294 −0.032
  Total   1.993 0.259 0.329 0.206
Cultivated Within acc. 51 (290) 1.777 0.316 0.283 −0.114
  In silico pooled   1.977 0.375 0.309 −0.162
  Total   2.000 0.313 0.347 0.096
Taxon       
S. africanum Within acc. 1 (6) 1.568 0.215 0.188 −0.131
  In silico pooled   1.220 0.220 0.110 −1.000
  Total   1.568 0.215 0.188 −0.131
S. strictum Within acc. 4 (20) 1.317 0.134 0.114 −0.172
  In silico pooled   1.429 0.158 0.144 −0.113
  Total   1.568 0.135 0.152 0.083
S. vavilovii Within acc. 3 (18) 1.790 0.321 0.284 −0.128
  In silico pooled   1.686 0.356 0.262 −0.325
  Total   1.949 0.322 0.327 0.009
S. afghanicum Within acc. 4 (21) 1.666 0.254 0.242 −0.067
  In silico pooled   1.693 0.312 0.250 −0.223
  Total   1.903 0.254 0.297 0.124
S. ancestrale Within acc. 5 (30) 1.707 0.267 0.243 −0.100
  In silico pooled   1.725 0.292 0.244 −0.177
  Total   1.963 0.268 0.301 0.092
S. dighoricum Within acc. 4 (23) 1.639 0.231 0.229 −0.026
  In silico pooled   1.771 0.311 0.276 −0.129
  Total   1.938 0.235 0.310 0.218
S. segetale Within acc. 4 (23) 1.680 0.274 0.249 −0.113
  In silico pooled   1.741 0.324 0.274 −0.166
  Total   1.944 0.278 0.322 0.118
S. cereale Within acc. 51 (290) 1.777 0.316 0.283 −0.114
  In silico pooled   1.977 0.375 0.309 −0.162
  Total   2.000 0.313 0.347 0.096
Geographical provenancea       
Central Within acc. 6 (35) 1.738 0.304 0.271 −0.123
  In silico pooled   1.838 0.374 0.299 −0.217
  Total   1.981 0.304 0.338 0.088
Maritime Within acc. 14 (79) 1.780 0.329 0.285 −0.144
  In silico pooled   1.910 0.392 0.307 −0.225
  Total   1.989 0.327 0.344 0.047
Mediterranean Within acc. 15 (86) 1.785 0.315 0.285 −0.103
  In silico pooled   1.924 0.380 0.301 −0.209
  Total   1.993 0.314 0.343 0.084
North East Within acc. 8 (43) 1.814 0.322 0.294 −0.095
  In silico pooled   1.788 0.374 0.270 −0.315
  Total   1.988 0.321 0.333 0.032
  1. aFor landrace rye only. Based on Bouma’s [41] proposed agro-climatic zones