Table 1.
Pairwise comparisons of nucleotide sequences of the 3′ 7.0-kb region of IBV isolate ck/CH/LGX/130530 with those of partridge/GD/S14/2003, pathogenic tl/CH/LDT3/03, and LDT3-A vaccine strains.
| Strain | Genome position |
||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20437 | 20741 | 21365 | 21641 | 22953 | 23034 | 23128 | 23508 | 23743 | 23848 | 24346 | 24436 | 24587 | 24994 | 25039 | 25308 | 25601 | 25727 | 26110 | 26445 | 26742 | |
| S |
E |
M |
5a | 5b |
N |
||||||||||||||||
| 57 | 361 | 985 | 1261 | 2573 | 2654 | 2748 | 3118 | 3363 | 3469 | 124 | 214 | 67 | 474 | 519 | 110 | 50 | 176 | 191 | 509 | 806 | |
| Partridge/GD/S14/2003 | T | G | C | G | C | C | T | C | T | G | G | C | C | T | C | C | C | C | C | C | C |
| tl/CH/LDT3/03 | T | G | C | G | C | C | T | C | T | G | G | C | C | T | C | C | C | C | C | C | C |
| ck/CH/LGX/130530 | T | T | C | G | C | T | T | C | T | G | G | C | C | A | C | C | T | C | C | C | T |
| LDT3-A | A | T | T | T | T | T | C | T | C | T | T | A | T | A | T | T | T | T | T | T | T |
We compared the nucleotide sequences of the 3′ 7.0-kb region of IBV isolate ck/CH/LGX/130530 with those of Partridge/GD/S14/2003, pathogenic tl/CH/LDT3/03, and LDT3-A vaccine strains. Of the 21 mutations, 16 were the same in the pathogenic tl/CH/LDT3/03 and ck/CH/LGX/130530 strain (in gray); in contrast, only five mutations were the same in the vaccine LDT3-A strain and the ck/CH/LGX/130530 isolate. Nucleotide positions correspond to those in the sequence of the IBV LDT3-A vaccine genome. GenBank accession numbers are the same as those shown in Fig. 1.