Table 2. Expression pattern of retroelements in two strains.

Elements		C3H Decreasing	C3H Increasing	C57 Decreasing	C57 Increasing
LINEs	Count	449	1098	1356	945
	p-value	<2.2e-16		<2.2e-16
LTRs	Count	271	686	722	692
	p-value	<2.2e-16		0.44
ETn	Count	3	8	7	10
	p-value	0.23		0.63
IAP	Count	15	41	72	33
	p-value	8.4e-4		2.1e-4
MERV-L	Count	7	12	31	13
	p-value	0.36		0.01
VL-30	Count	2	26	3	51
	p-value	1.4e-5		1.6e-10