Association Analysis of Arsenic-Induced Straighthead in Rice (Oryza sativa L.) Based on the Selected Population with a Modified Model

Figure 1

The genetic structure of 380 accessions for the analysis models of association mapping. (a) Estimated group structure is partitioned into five colored groups that represent the individual estimated levels of the five clusters and (b) principal component analysis (PCA) shows the accessions’ pattern of spatial distribution. Each color represents one of the five groups indicated by the ancestry index. Each “-” or “•” represents one accession in (a) or (b), respectively.

(a)

(b)