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Table 1 Mantel test between farmer germplasm exchange and gene flow of NGT among the study area

From: The maintenance of stable yield and high genetic diversity in the agricultural heritage torreya tree system

  Contemporary Nm P value Historical Nm P value
Seed and pollen exchange 0.408 0.076 0.451 0.076
Seed exchange 0.404 0.081 0.148 0.254
Pollen exchange 0.295 0.125 0.664 0.011
  1. Nm indicates the effective individual numbers of migration, in which N is the effective population size, m is the migration rate, and Fst is a fixation index (indicating genetic differentiation among populations)