Identification, characterization, and utilization of genome-wide simple sequence repeats to identify a QTL for acidity in apple

Table 3 Average allele numbers and PIC values of SSRs in eight apple genotypes

SSR region	Type	No. of SSRs	Average allele number			Average PIC value
			C*	W*	C+W*	C*	W*	C+W*
CDS	Dimer	3	2.50	2.75	2.63	0.44	0.48	0.46
	Trimer	9	2.53	2.71	2.62	0.55	0.59	0.57
UTR	Dimer	28	2.26	2.56	2.41	0.49	0.51	0.50
	Trimer	11	2.27	2.27	2.27	0.41	0.45	0.43
Genomic	Dimer
	AC/CA/TG/GT	17	2.40	3.20	2.80	0.44	0.60	0.52
	AG/GA/TC/CT	102	3.20	3.69	3.45	0.62	0.73	0.67
	AT/TA	63	2.75	3.19	2.97	0.56	0.69	0.63
	Total	182	3.51	3.67	3.59	0.60	0.71	0.65
	Trimer	12	2.57	2.57	2.57	0.52	0.56	0.54

C: Four apple cultivars, including ‘Golden Delicious’, ‘Jonathan’, ‘Luao’, and ‘Starkrimson’. W: Four wild apple species, including M. prunifolia (Willd.) Borkh. (‘Regunzihaitang’), M. sieversii (Lebed.) Roem. (‘Xinjiangyepingguo 12’), M. × robusta Rehd. (‘Pingding Crab’), and M. asiatica Nakai (‘Naizi’). C+W: Both four apple cultivars and four wild apple species.

ISSN: 1471-2164