Table 2.

P Values of the Chromosomal Clusters Analysis

	OBP			CSP
	Observed Distance	Average Distance	P Value	Observed Distance	Average Distance	P Value
Dmel	1322846.7	2026501.8	<0.0001	—	—	—a
Dsim	1268476.5	2006452.9	<0.0001	—	—	—a
Dsec	719946.2	1478286.5	<0.0001	—	—	—a
Dyak	1229276.6	1993428.8	<0.0001	—	—	—a
Dere	1271164.5	2057290.3	0.0004	—	—	—a
Dana	1245187.1	1982158.1	0.0004	—	—	—a
Dpse	1102439.9	2146580.2	<0.0001	—	—	—a
Dper	331607.1	1467330.8	<0.0001	—	—	—a
Dwil	306109.5	1680312.9	<0.0001	—	—	—a
Dmoj	1528514.0	2917407.1	<0.0001	—	—	—a
Dvir	774464.4	2483148.4	<0.0001	—	—	—a
Dgri	1112257.6	2172345.2	<0.0001	—	—	—a
Agam	2478428.4	3020631.7	0.0064	—	—	—a
Bmor	124328.2	2220702.0	0.001	33582.7	1835740.8	0.0008
Tcas	2267791.0	3736858.6	0.0052	832475.9	5529128.4	<0.0001
Amel	—	—	—b	—	—	—a
Phum	—	—	—a	—	—	—a
Apis	—	—	—b	—	—	—b
Dpul	—	—	—a	—	—	—a
Isca	—	—	—a	—	—	—a

NOTE.—P values calculated by computer simulations. The species four-letter code is as in table 1.

^aSpecies not analyzed for having less than ten gene members.

^bSpecies not analyzed for having a fragmented genome (probably due to poor coverage or assembling).