Figure 1

A flow chart describing the analysis steps involved in this study. At the first step, 94 small RNA generating loci were selected and their sequence variation and neutrality were estimated using a population of 33 domesticated rice accessions (see Figures 2, 3 and 4; Additional files 3, 4 and 5). At the second step, 20 small RNA loci were selected from the 94 small RNA loci and their sequence diversity and potential for having been under domestication selection (see Table 1) were further investigated using a cultivated population (54 accessions) and a wild population (15 accessions).