Table 5. Chromosome bias in DSX occupancy.

Occupancy	Chr.	Obs (Exp)	Fold	P-Value
Clough et al. 2014	X	553 (530)	1.04	N.S.
	2L	579 (551)	1.05	N.S.
	2R	619 (644)	0.96	N.S.
	3L	617 (612)	1.01	N.S.
	3R	727 (766)	0.95	N.S.
	4	43 (26)	1.65	< 0.0001
Luo et al. 2011	X	76 (81)	0.94	N.S.
	2L	84 (84)	1.00	N.S.
	2R	95 (98)	0.97	N.S.
	3L	113 (93)	1.22	0.024
	3R	107 (117)	0.91	N.S.
	4	4 (4)	1.00	N.S.

Fisher’s exact test was performed to detect enrichment or depletion of genes showing evidence of DSX occupancy in Clough et al. 2014, or in Luo et al. 2011, on each chromosome arm. The observed (Obs) and expected (Exp) number of genes are reported for each major chromosome arm, as well as the fold enrichment (Fold).