Additional file 13 of Contrasting genetic variation and positive selection followed the divergence of NBS-encoding genes in Asian and European pears

Additional file 13. The expression patterns of 338 NBS-encoding genes’ expression in P. calleryana and ‘Hongfen’ pear (P. pyrifolia). Letter ‘Treat_RPKM’ means these genes’ expression in treatment groups (inoculation of A. alternata). Letter ‘CK_RPKM’ means these genes’ expression in control groups. Letter ‘NA’ means no data.