Table I. Abundance of candidate diTPSs in the jack pine and lodgepole pine transcriptome data.

	No. of Reads
Gene Name and Species	454	Illumina	Relative Expressiona
Lodgepole pine
PcLAS1, PcLAS2	614	16,560	100.00
PcmISO1	1	111	0.67
PcmPIM1	17	456	2.80
PcmdiTPS1	7	132	0.80
PcmdiTPS2	12	279	1.70
PcmdiTPS3	0	51	0.31
Jack pine
PbLAS1	516	69,608	100.00
PbmISO1	131	12,611	18.10
PbmPIM1	2	570	0.82
PbmdiTPS1	12	928	1.30

^aRelative gene expression was calculated based on the number of reads in the Illumina data set when PcLAS1 and PcLAS2 and PbLAS1 are set at 100% for lodgepole pine and jack pine, respectively.