0.00E+00 1.00E-04 2.00E-04 3.00E-04 4.00E-04 5.00E-04 6.00E-04

9.00E-04 8.00E-04 7.00E-04

Density

6.00E-04 5.00E-04 4.00E-04 3.00E-04 2.00E-04 1.00E-04

0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000 24000 26000 28000 30000 32000 34000 36000 38000 40000 42000 44000 46000 48000 50000

0.00E+00

Length

Figure S3 The length distribution of genes without any SNPs and present in both genomes (red; N = 378) and the length distribution of all annotated genes (blue; N = 37,223).

4 SI

J. T. Page et al.