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Table 1 Populations and cultivars used in this study and the proportion of genetic clusters at K = 4

From: Genome-wide association study of individual sugar content in fruit of Japanese pear (Pyrus spp.)

Population ID Seed parent Pollen parent Number of  individuals “orange” cluster “light blue” cluster “dark blue” cluster “green” cluster
523 Akizuki 373-55 106 0.00 0.00 1.00 0.00
538 Akizuki Hoshiakari 28 0.00 0.66 0.34 0.00
539 Akizuki 450-63 62 0.00 0.01 0.99 0.00
541 Kosui Hoshiakari 47 0.00 0.68 0.26 0.05
542 Akiakari 450-7 33 0.00 0.30 0.40 0.29
543 Natsushizuku Hoshiakari 78 0.00 0.71 0.29 0.00
545 Kosui Inagi 38 0.04 0.04 0.44 0.49
546 Akizuki Akiakari 36 0.00 0.19 0.54 0.27
547 Akiakari Okuroku 70 0.00 0.02 0.03 0.95
574 450-63 Chikusui 51 0.00 0.03 0.97 0.00
578 Hoshiakari Narumi 100 0.00 0.99 0.01 0.00
581 Kanta Hoshiakari 62 0.51 0.49 0.00 0.00
588 Hoshiakari Tsukuba49 121 0.00 0.99 0.01 0.00
589 Kanta Rinka 49 0.77 0.07 0.04 0.12
590 373-055 Kanta 39 0.56 0.00 0.44 0.00
591 Tsukuba51 Kanta 74 0.99 0.00 0.00 0.00
592 Shurei Kanta 72 0.61 0.00 0.39 0.00
595 Osa gold Chikusui 46 0.12 0.02 0.68 0.18
Cultivar collection   106 0.13 0.14 0.37 0.36
  1. The breeding populations  are the product of about five to seven generations of crossing in a pear breeding program at the Institute of Fruit Tree and Tea Science
  2. Population structure was estimated for each individuals in software ADMIXTURE 1.30  K = 4