Table 1. Summary on characteristics of Planktothrix strains used in this study and grouped according to the phylogenetic lineages as shown in Figure 1b.

Phylogenetic group	Number of strains	Number of STs	Number of sampled waterbodies	Number of sampled countries	mcy gene cluster present	GvpC (gas vesicle protein size in kDa)	Pigmentation	PC/PE ratio	Mean depth	Maximum depth	Area km2	Catchment km2	Latitude (°)	Longitude (°)	Distance to Mondsee (in km)
1	44	21	16	11	No/yes	28	Ga	1.5–1.95–2.26	1–9.5–37	2–15.6–43	0.1–23–396	0.1–1793–7000	39.2–48.7–60	111–3–39	178–1515–7572
1A	11	6	2	2	No	28	G/R	0.4–1.2–2	5.6–5.6–6	9–19–20	2.8–37–41	755–1323–7000	52–54–54	–111–99–13	519–6931–7572
1B	3	2	2	2	Yes	20	R	0.26–0.28–0.3	42–44–47	81–84–86	19–29–47	162–439–994	46–47–47	11–13–14	159–167–183
2	56	23	21	9	Yes	28;20;16	R/G	0.17–0.7–2.4	4–13–52	9–34–136	0.07–12–220	0.1–293–7000	37.6–47.1–59.5	110–19–16.2	0–2439–7531
2A	17	8	4	2	Yes	28	G	2–2.3–2.6	6–8–23	21–28–64	1–12–30	16–308–935	59.5–60–61	10.5–23–25	1337–1575–1598
3	7	1	1	1	Nob	28;20;16	G	2–2.2–2.5	3.6	8	1.4	10	0.4	30.2	5468

Abbreviations: PC, phycocyanin; PE, phycoerythrin; ST, sequence type.

For each strain, an ST was defined from seven sequenced gene loci according to Multi Locus Sequence Typing (Feil et al., 2004). For strain-specific details, see Supplementary Table S1. Data are presented as min–mean–max.

^aG, green-pigmented; R, red-pigmented.

^bSmallest remnant of mcyT and the presence of the 5′ flanking region of the mcy gene cluster (Supplementary Figure S1).