Table 1.

Datasets and tMRCA inferred by treetime tool.

lineage	number of samples	tMRCA
P.1.2	482	2021–01–12 ∼ 2021.03
P.1.14	540	2020–12–15 ∼ 2020.95
AY.101	1030	2021–03–22 ∼ 2021.22
AY.99.2	1953	2021–03–26 ∼ 2021.23
BA.1.1	1467	2021–10–09 ∼ 2021.77
BA.5.2	384	2022–02–11 ∼ 2022.11
BA.2	1530	2021–12–09 ∼ 2021.93