Table 4.

Pairwise comparison of nucleotide identity of 50 global porcine deltacoronaviruses by different geness.

Viruses	Gene, nucleotide identity%
	Whole genome	ORF1ab	S	E	M	NS6	N	NS7
Among all global PDCoVs (50 seq)	97.1–99.9	97.3–100	95.4–100	98.4–100	98–100	97.8–100	96.9–100	97.3–100
Among Chinese strains (Hong Kong & mainland) (9 seq)	98.6–99.5	98.6–99.6	97.3–99.6	98.8–99.6	99−99.6	98.2–99.6	98.3–99.9	98.3–99.8
Among US & Korean strains (39 seq)	99.6–99.9	99.7–99.9	99.5–99.9	99.2–100	99.5–100	99.6–100	99.1–99.8	98.6–100
Among Thailand strains (2 seq)	99.9	99.9	99.9	100	100	100	100	100
Chinese (9 seq) vs US & Korean strains (39 seq)	98.7–99.2	98.7–99.4	97.9–98.9	98.4–99.6	98.6–99.3	98.5–100	98.1–99.3	98.3–99.6
Chinese (9 seq) vs Thailand strains (2 seq)	97.1–97.7	97.3–97.9	95.4–96.8	99.2–100	98.6–99	97.8–98.9	97.1–97.8	97.5–98.3
US & Korean (39 seq) vs Thailand strains (2 seq)	97.2–97.3	97.4–97.5	96.1–96.3	99.2–100	98−98.4	98.2–98.9	96.9–97.2	97.3–97.6