Epigenetic Variation May Compensate for Decreased Genetic Variation with Introductions: A Case Study Using House Sparrows (Passer domesticus) on Two Continents

Table 1

Frequency of epigenetic variation detected by MS-AFLP at the restriction site CCGG. The type of epigenetic variation is presented following Salmon et al. [31]; Type I = restriction site no methylation, Type II = methylation of internal C, Type III = methylation of external C, and Type IV = hypermethylation or mutation in restriction site.

	Restriction site
	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Nairobi
Type I	0.79	1	0	0.64	0.21	0.79	0.93	0.29	0.64	0.71	0.86	0.29	0.21	0.43	0.86	0.5	0.5	0.07	0.86	0.71	0.64	0.79	0.71
Type II	0.21	0	0.21	0.14	0.5	0.21	0.07	0.5	0.21	0.14	0.14	0.64	0.14	0.29	0.14	0.14	0.36	0.21	0.07	0.21	0.36	0.21	0.14
Type III	0	0	0.14	0.07	0	0	0	0	0	0.07	0	0	0	0	0	0	0	0.07	0	0	0	0	0.14
Type IV	0	0	0.64	0.14	0.29	0	0	0.21	0.14	0.07	0	0.07	0.64	0.29	0	0.36	0.14	0.64	0.07	0.07	0	0	0
Tampa
Type I	0.88	0.94	0.38	0.31	0.5	0.88	0.75	0.25	0.75	0.44	0.88	0.5	0.19	0.13	0.63	0.69	0.63	0	0.81	0.63	0.31	0.69	0.44
Type II	0.13	0.06	0.19	0.38	0.38	0.06	0.19	0.63	0	0.38	0.06	0.25	0.19	0.19	0.25	0.06	0.25	0.06	0.13	0.13	0.63	0.31	0.38
Type III	0	0	0.13	0	0.06	0.06	0	0	0	0.06	0	0	0.06	0	0	0.06	0	0	0.06	0.06	0	0	0.06
Type IV	0	0	0.31	0.31	0.06	0	0.06	0.13	0.25	0.13	0.06	0.25	0.56	0.69	0.13	0.19	0.13	0.94	0	0.19	0.06	0	0.13