Genetic Diversity of Landraces and Improved Varieties of Rice (Oryza sativa L.) in Taiwan

Rice

Table 3 Genetic diversity and divergence in O. sativa

Group	Number	Mean allele number/locus	Major allele frequency/locus	Mean gene diversity	Mean PIC^a value	F_ST^b
All *O. sativa*	136	11.01	0.36	0.74	0.70	0.3084
Indica	75	8.31	0.50	0.61	0.58
Japonica	61	7.05	0.54	0.59	0.55
All landraces	83	9.57	0.39	0.72	0.69	0.3040
Indica	51	6.52	0.53	0.58	0.54
Japonica	32	6.25	0.50	0.60	0.57
All cultivars	53	7.28	0.44	0.68	0.64	0.4200
Indica	24	5.43	0.57	0.56	0.52
Japonica	29	3.65	0.68	0.43	0.39
All *indica*	75	8.31	0.50	0.61	0.58	0.1166
Cultivars	24	5.43	0.57	0.56	0.52
Landraces	51	6.52	0.53	0.58	0.54
All *japonica*	61	7.05	0.54	0.59	0.55	0.1913
Cultivars	29	3.65	0.68	0.43	0.39
Landraces	32	6.25	0.50	0.60	0.57

^aPIC is the abbreviation for polymorphism information content
^bFixation index (F_ST) indicates genetic differentiation between two subpopulations by the reduction of heterozygosity due to genetic drift and / or selection