Genome sequence analysis of a Helicoverpa armigera single nucleopolyhedrovirus (HearNPV-TR) isolated fromHeliothis peltigera in Turkey


Eroglu G. B. , İNAN C. , NALÇACIOĞLU R. , DEMİRBAĞ Z.

PLOS ONE, vol.15, no.6, 2020 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 15 Issue: 6
  • Publication Date: 2020
  • Doi Number: 10.1371/journal.pone.0234635
  • Title of Journal : PLOS ONE

Abstract

The entire genome of Helicoverpa armigera single nucleopolyhedrovirus (HearNPV-TR) was sequenced, and compared to genomes of other existing isolates. HearNPV-TR genome is 130.691 base pairs with a 38.9% G+C content and has 137 open reading frames (ORFs) of >= 150 nucleotides. Five homologous repeated sequences (hrs) and two baculovirus repeated ORFs (bro-a andbro-b) were identified. Phylogenetic analysis showed that HearNPV-TR is closer to HaSNPV-C1, HaSNPV-G4, HaSNPV-AU and HasNPV. However, there are significant differences inhr3,hr5 regions and inbro-a gene. Pairwise Kimura-2 parameter analysis of 38 core genes sequences of HearNPV-TR and other Helicoverpa NPVs showed that the genetic distances for these sequences were below 0.015 substitutions/site. Genomic differences as revealed by restriction profiles indicated thathr3,hr5regions andbro-a gene may play a role in the virulence of HearNPV-TR.