Supp. Table S3: Description of intergeneric samples with raw read number, mapping rates and specificity statistics. Except when mentioned, all the statistics are calculated with read mapping on the G. undata pseudoreference genome.										
										
Sub-family	Species	Sequencing method	Divergence time to G. undata (Myr)	Raw read number	Mapping rate on G. undata	% of uniquely mapped reads	Specificity (% of IN-bait reads)	% of reads mapping on the chloroplast	Mapping rate on E. guineensis 	Mapping rate on P. dactylifera
Arecoideae										
	Geonoma undata	WGS	0	152539633	56.23	NA	NA	0.966	44.11	25.14
		Capture, replicate 1	0	1011291	92.88	90.39	83.71	0.013	88.45	82.16
		Capture, replicate 2	0	997497	92.86	90.02	83.88	0.010	88.44	82.22
	Asterogyne guianensis	Capture, replicate 1	14.8	982272	88.39	84.27	83.12	0.006	85.89	80.85
		Capture, replicate 2	14.8	967798	89.72	85.90	84.18	0.009	87.37	82.44
	Cocos nucifera	Capture, replicate 1	66.7	1225793	90.31	85.41	79.83	0.012	90.83	81.05
		Capture, replicate 2	66.7	1129111	91.76	87.39	81.07	0.010	92.26	82.98
Cerxoxyloideae										
	Ceroxylon alpinum	Capture, replicate 1	78.3	1108515	89.13	85.52	80.86	0.047	88.3	85.85
		Capture, replicate 2	78.3	1099846	90.1	87.77	81.75	0.055	89.33	86.84
Coryphoideae										
	Licuala merguensis	Capture, replicate 1	86.6	1932215	92.06	86.33	82.05	0.008	91.06	93.24
		Capture, replicate 2	86.6	1778188	92.83	86.94	82.58	0.007	91.86	93.75