Fig. 6

Three genome sets had different genetic variation and exhibited positive correlation between nucleotide substitutions and indel frequencies. a, b: SNP and indel frequencies of all unigenes mapped to three genome sets. c: The correlation between SNP and indel frequencies shown in panels (a) and (b). d: The relative SNP and indel frequencies of unigenes mapped to three genome sets. e: The correlation between SNP and indel frequencies of unigenes mapped long and short arms of three genome sets. f: The relative SNP and indel frequencies of unigenes mapped to long and short arms of three genome sets. In a and b: The significance of difference was calculated with the the χ² test, and columns labelled with no same letter means the difference is significant (P < 0.05). In c and e, the correlation was calculated using the Pearson correlation analysis. In d and e, CV was coefficient of variation which was calculated as the ratio of standard deviation to mean