Table 4. Statistically significant temporal signals within non-repetitive core genome SNPs in HC20_373 and other HC20 clusters.

				Marginal likelihood				Log Bayes Factor
HC20 cluster	No. genomes	Serovar	Dates	Contemp Strict	Contemp Relaxed	Strict	Relaxed	BF1	BF2	BF3
10	256	Adelaide	2009–2020	-6300296	-6300266	-6300028	-6300027	268	239	1
44	807	Newport	2000–2020	-6741201	-6741075	-6740307	-6740164	894	911	143
122	805	Newport	1998–2020	-6942726	-6942748	-6942657	-6942593	69	155	64
125	445	Bertha	1994–2020	-6788539	-6788497	-6788366	-6788190	173	307	176
557	749	Muenchen	1988–2020	-6721331	-6721275	-6720904	-6720738	427	537	166
710	405	Johannesburg	2003–2020	-6169794	-6169764	-6169324	-6169329	470	435	-4
1348	781	Enteritidis PT8	1972–2020	-6845700	-6845709	-6845096	-6844990	604	719	106
1487	341	Typhimurium	2006–2020	-6787811	-6787819	-6787671	-6787677	140	142	-6
4179	377	Newport	2010–2021	-6680482	-6680478	-6680401	-6680406	82	72	-6
373	419	ATCC14028s	2000–2020	-6706284	-6706329	-6706189	-6706166	95	163	23
20633	44	NCTC 7832	2006–2021	-6375734	-6375742	-6375728	-6375732	6	10	-4

NOTE: Data are as in Table 2, except that the HC20_5519 and HC20_39803 were excluded because they did not possess statistically significant evidence for temporal signals. Furthermore, only genomes were included with metadata for calendar year or isolation and which were not outliers in an analysis with TempEst [38].

Marginal likelihoods are abbreviated as Contemp Strict: strict clock with isochronous dates; Contemp Relaxed: relaxed clock with isochronous dates; Strict: strict molecular clock with heterochronous dates; Relaxed: relaxed molecular clock with heterochronous dates.

BF1 (Log Bayes Factor 1) is Strict vs Contemp Strict. BF2 is Relaxed vs Contemp Relaxed. BF3 is Relaxed vs Strict.