The genome sequence of Agrotis segetum granulovirus, isolate AgseGV-DA, reveals a new Betabaculovirus species of a slow killing granulovirus

Gueli Alletti, Gianpiero GND; Eigenbrod, Marina; Carstens, Eric B.; Kleespies, Regina G. GND; Jehle, Johannes GND

low dose-mortality responses within seven days post infection and a tissue tropism of infection restricted solely to the fat body of infected Agrotis segetum host larvae. The genome of AgseGV-DA was completely sequenced and compared to the whole genome sequences of the Chinese isolates AgseGV-XJ and AgseGV-L1. All three isolates share highly conserved genomes. The AgseGV-DA genome is 131,557 bp in length and encodes for 149 putative open reading frames, including 37 baculovirus core genes and the per os infectivity factor ac110. Comprehensive investigations of repeat regions identified one putative non-hr like origin of replication in AgseGV-DA. Phylogenetic analysis based on concatenated amino acid alignments of 37 baculovirus core genes as well as pairwise distances based on the nucleotide alignments of partial granulin, lef-8 and lef-9 sequences with deposited betabaculoviruses confirmed AgseGV-DA, AgseGV-XJ and AgseGV-L1 as representative isolates of the same Betabaculovirus species. AgseGV encodes for a distinct putative enhancin, distantly related to enhancins from other granuloviruses.

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Gueli Alletti, Gianpiero / Eigenbrod, Marina / Carstens, Eric / et al: The genome sequence of Agrotis segetum granulovirus, isolate AgseGV-DA, reveals a new Betabaculovirus species of a slow killing granulovirus. 2017.

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