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Table 2 Number of trees genotyped and used in analyses for population structure and GWAS

From: Leveraging breeding programs and genomic data in Norway spruce (Picea abies L. Karst) for GWAS analysis

Genetic cluster used for GWAS Genotypeda Trait
BB Height DBH WD MFA WS FD
ALP 1125 1010 929 877 1005 1006 1005 474
CSE 1571 1501 1418 1146 1504 1508 1501 623
CEU 508 350 301 280 350 350 350 143
NFE 1041 832 824 30 822 821 820 5
NPL 197 189 178 176 190 171 189 78
ROM 124 30 36 28 29 29 29 17
RUS_Bal 490 226 152 137 227 227 227 88
Total no. of genotypes used for GWAS 5056 4138 3838 2674 4127 4112 4121 1428
GWAS validation of tree height, BB,
and wood quality traits
1370 1067 1370   1370 1370 1370  
GWAS validation of BB 914b 914b       
Grand total 7340 6119 5208 2674 5497 5482 5491 1428
  1. aThe number of genotyped individuals in each genetic cluster using for population structure
  2. BB budburst stage, Height tree height, DBH diameter at breast height, FD frost damage, WD wood density, MFA microfibril angle, WS wood stiffness
  3. The different genetic clusters are Alpine, ALP; central and southern Sweden, CSE; Central Europe, CEU; Fennoscandia, NFE; Northern Poland, NPL; Carpathian, ROM; and Russia-Baltic, Rus-Bal
  4. bThe 914 individuals were genotyped by a recently developed Picea abies SNP array [20]