Table 1. Characteristics of ChocNPV and ChroNPV genomes.
Baculoviruses* | ||||||||
Features | Choc | Chro | Cf | CfDEF | Op | Hycu | Ac | |
Genome size (bp) | 128,446 | 129,052 | 129,593 | 131,160 | 131,990 | 132,959 | 133,894 | |
GC content (%) | 50.1 | 48.6 | 50.1 | 50 | 55 | 45 | 40 | |
No. of ORFs | 148 | 149 | 146 | 149 | 152 | 148 | 155 | |
No. of hrs | 5 | 3 | 5 | 13 | 5 | 6 | 9 | |
No. of bros | 1 | 2 | 1 | 2 | 3 | 5 | 1 | |
Mean % aa ID with Choc | – | 77 | 97.3 | 70.1 | 76.7 | 75.4 | 56.2 | |
Mean % aa ID with Chro | 77 | – | 82.1 | 71.1 | 77.4 | 74.6 | 57.4 | |
No. of homologs in Choc | – | 144 | 144 | 134 | 133 | 128 | 131 | |
No. of homologs in Chro | 144 | – | 135 | 128 | 133 | 130 | 128 | |
ORFs unique to Choc | 2 | – | – | – | – | – | ||
ORFs unique to Chro | 4 | – | – | – | – | – |
ChocNPV and ChroNPV homologs were compared with five alphabaculoviruses (CfMNPV, CfDEFMNPV, OpMNPV, HycuNPV, and AcMNPV). Amino acid identities were based on BLASTP homology search. Both ChocNPV and ChroNPV shared more ORFs with CfMNPV than with the other viruses. ChocNPV had a mean amino acid identity of 97.3% and ChroNPV 82.1% with CfMNPV.