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Table 2 Genetic diversity parameters of grape phylloxera populations across four vineyard-sites in Napa (Oakville) and Yolo (Woodland) counties, California

From: Reproductive mode and fine-scale population genetic structure of grape phylloxera (Daktulosphaira vitifoliae) in a viticultural area in California

Population ID Number of individuals Number of distinct genotypes G/N Number of repeated genotypes Number of significant Psex Number of non-significant Psex Mean alleles Mean Ho Mean HE P(HWE) FISmultilocus-MCG
Col-1 52 30 0.577 6 2 4 2.1 0.388 0.326 *** -0.190
Col-2 63 35 0.555 7 4 3 2.8 0.339 0.357 *** 0.050
UCD-OKV 78 39 0.500 13 10 3 2.8 0.330 0.398 *** 0.170
Woodland 32 21 0.656 5 1 4 2.9 0.375 0.368 0.137 -0.020
  1. G/N, Genotypic (reproduction) diversity index, Psex, Significantly clonal genotypes, HO, Observed heterozygosity, HE, Expected heterozygosity, P (HWE), Exact P values for Hardy-Weinberg equilibrium test, FIS Multilocus-MCG, FIS averaged over loci (calculations without multicopy genotypes), ***, P < 0.001 (highly significant).