TABLE 3.

Introgressions between P. restrepiensis and P. brasiliensis sensu stricto are mostly found in intergenic regions

Direction	Sequence typea	Length (kb)	Introgressed %b	Genomic %c	Enrichmentd
P. restrepiensis into P. brasiliensis	10-kb inter	9.78	42.8565	23.990	1.786
P. restrepiensis into P. brasiliensis	2-kb upstream inter	6.28	27.4918	29.759	0.9245
P. restrepiensis into P. brasiliensis	3′ UTR	0.03	0.1227	1.817	0.068
P. restrepiensis into P. brasiliensis	5′ UTR	0	0	1.019	0
P. restrepiensis into P. brasiliensis	CDS	5.92	25.9365	44.598	0.582
P. restrepiensis into P. brasiliensis	Intergenic	0	0	1.904	0
P. restrepiensis into P. brasiliensis	Intron	0.82	3.5926	12.225	0.294
P. brasiliensis into P. restrepiensis	10-kb inter	980.29	26.1924	23.990	1.092
P. brasiliensis into P. restrepiensis	2-kb upstream inter	1,436.81	38.39	29.759	1.290
P. brasiliensis into P. restrepiensis	3′ UTR	24.31	0.6495	1.817	0.358
P. brasiliensis into P. restrepiensis	5′ UTR	10.12	0.2704	1.019	0.266
P. brasiliensis into P. restrepiensis	CDS	1,071.78	28.637	44.598	0.642
P. brasiliensis into P. restrepiensis	Intergenic	113.07	3.0212	1.904	1.587
P. brasiliensis into P. restrepiensis	Intron	106.27	2.8395	12.225	0.232

^aTo study whether any particular type of sequence was over- or underrepresented, we partitioned the genome by sequence type with each region being assigned to one of the following eight sequence types: coding sequence (CDS), exon, 5′ untranslated region (UTR), 3′ UTR, intron, 2-kb upstream inter (intergenic sequence 2 kb upstream of a gene), 10-kb inter (intergenic sequence within 10 kb of a gene), and intergenic (intergenic sequence more than 10 kb from a gene).

^bThe introgressed percentage is the percentage of introgressions overlapping a given sequence type for that direction.

^cThe genomic percentage is the percentage of the genome represented by a given sequence type.

^dEnrichment = (introgressed percentage)/(genomic percentage).