Comparative mitogenomics indicates respiratory competence in parasitic Viscum despite loss of complex I and extreme sequence divergence, and reveals horizontal gene transfer and remarkable variation in genome size

Table 1 Protein-gene divergence in Viscum album (Va) vs. Liriodendron tulipifera (Lir) and Va vs. V. scurruloideum (Vs)

Gene	Coding sequence length (nt)			% nucleotide identity^a		Va- Vs syn. and nonsyn.^b
	Lir	Va	Vs	Va vs. Lir	Va vs. Vs	d_N	d_S	d_N/d_S
atp9	225	225	219	82.7	91.8	0.044	0.216	0.20
rps12	375	417	411	68.0	98.3	0.010	0.048	0.21
atp1	1527	1536	1536	73.1	99.8	0.001	0.004	0.22
cox1	1572	1602	1602	81.4	99.6	0.003	0.010	0.24
cox3	795	738	795	75.1	99.2	0.006	0.017	0.33
rps3	1554	1455	1518	50.4	97.6	0.018	0.044	0.41
ccmFc	1326	1305	1218	51.1	96.3	0.029	0.067	0.43
sdh3	282	222	186	54.8	97.3	0.022	0.047	0.47
atp6	720	915	915	75.5	99.0	0.008	0.016	0.51
ccmFn	1683	1776	1467	51.8	96.7	0.029	0.051	0.56
mttB	720	765	789	63.2	96.9	0.029	0.042	0.68
atp4	558	471	474	41.5	98.5	0.014	0.020	0.69
cob	1179	1209	1221	74.4	99.3	0.006	0.008	0.73
rps4	1035	1005	1224	51.8	96.1	0.037	0.050	0.75
rpl16	432	378	378	63.2	98.4	0.015	0.019	0.79
ccmC	699	654	654	65.9	99.5	0.004	0.005	0.84
atp8	474	492	483	56.0	98.3	0.016	0.019	0.85
cox2	762	750	750	76.3	99.6	0.005	0.000	n.a.
rps10	357	273	273	59.4	99.6	0.006	0.000	n.a.
All genes^c	16275	16188	16113	64.4	98.2	0.015	0.029	0.50

ISSN: 1471-2229