Table 1.

Classification of L1 families in the pig Genome

L1 family	Subfamily Number	Length (bp)						Active L1 Number
		Consensus	5’UTR	ORF1	IGR	ORF2	3’UTR (No PolyA)
L1A	7	5837–7404	931–1959	897–906	67–396	3655–3828	180–305
L1B	12	5975–7740	551–2335	878–910	390–447	3766–3813	217–305
L1C	13	6462–7532	1037–2024	879–891	385–529	3766–3814	247–268
L1D	21	7072–8822	1562–3254	887–891	501–521	3807–3819	270–277	98