Fig. 4From: Exploring the genetic diversity within traditional Philippine pigmented RicePrincipal component analysis of 307 core Philippine pigmented rice accessions. The additive relationship matrix was calculated for the 307 core Philippine pigmented rice accessions in rrBLUP using the R package rrBLUP (Endelman, 2011) and used as input to the PCA. The 307 accessions were separated into two main groups, indica (blue) and japonica (yellow)Back to article page