Table 3. Comparison of duplicate gene intron numbers.

Species	# of Pairs with Same Intron Counta		# of Pairs with Different Intron Counta		# of Pairs with No Introns		# of Pairs with One Intron-less Member
	Db	Tc	D	T	D	T	D	T
P. falciparum	10	3	4	0	6	2	6	0
P. knowlesi	7	0	4	1	5	2	6	0
P. vivax	4	6	2	4	11	1	12	4
P. berghei	5	0	3	1	4	4	4	4
P. chabaudi	9	1	2	0	4	2	4	0
B. bovis	6	11	3	5	8	12	3	3
T. annulata	1	7	2	5	4	10	0	0
T. parva	4	10	4	19	7	16	3	6
T. gondii	17	8	34	24	6	11	2	6
N. caninum	12	8	32	2	5	5	4	4
C. muris	0	0	0	0	18	4	6	0
C. parvum	0	0	0	0	21	7	0	0

^aBoth members have > = 1 intron.

^bPair members are dispersed.

^cPair members are in tandem.