. Author manuscript; available in PMC: 2014 Dec 24.

Published in final edited form as: Insect Biochem Mol Biol. 2008 May 19;38(6):661–676. doi: 10.1016/j.ibmb.2008.04.001

Table 2.

Percentage of genes with introns in each category for An. gambiae CPR genes. Only first and second introns are considered, as An. gambiae CPR genes with more than two introns are uncommon and do not occur in sequence-cluster genes.

	First intron¹			Second intron¹
Size range of intron	RR-2 sequence cluster	RR-2 single copy	RR-1	RR-2 sequence cluster	RR-2 single copy	RR-1
none	16.4	6.3	9.3	88.1	56.3	50.0
≤120	82.1	40.6	37.0	11.9	15.6	16.7
121–600	1.5	28.1	29.6	0	15.6	18.5
>600	0	25.0	24.1	0	12.5	14.8

Equal proportions among classes rejected by contingency test at P < 0.001.