Table 1.

Percent (%) nucleotide identity of Ark DPI non-structural genes and ORF1ab, ORF2-6 and complete genome with other IBV strains^{a, b, c}

IBV Strains	5'UTR	PLpro	Mpro	RdRp	ORF1	ORF2-6	Complete genome
Ark99	98	87	99	99	NA	96	NA
A2	95	83	85	99	86	85	86
Beaudette	96	85	93	93	91	91	91
BJ	96	83	88	93	86	85	86
Cal99*	100	99	97	99	96	94	96
CK/CH/LSD/05I	97	84	88	90	89	90	89
Connecticut	97	87	100	99	NA	96	NA
CU-T2*	100	94	99	99	NA	94	NA
DE072	100	100	90	90	NA	NA	NA
Florida	97	87	100	99	NA	NA	NA
GA98*	100	100	100	100	NA	NA	NA
Gray	100	87	100	100	NA	NA	NA
Jilin	NA	NA	NA	NA	NA	100	NA
LX4	94	83	85	89	87	84	86
M41	97	87	91	94	91	91	91
SAIBK	92	85	90	90	90	86	89

^a Sequences with > 95% identity are in bold letters

^b NA-not analyzed

^c Parental strains of Ark DPI are shown in bold letters and immediate derivative of Ark DPI is indicated by asterisk (*).