Geographically driven adaptation of chilli veinal mottle virus revealed by genetic diversity analysis of the coat protein gene

Arch Virol. 2016 May;161(5):1329-33. doi: 10.1007/s00705-016-2761-7. Epub 2016 Jan 30.

Abstract

Chilli veinal mottle virus (ChiVMV) is an important plant pathogen with a wide host range. The genetic structure of ChiVMV was investigated by analyzing the coat protein (CP) genes of 87 ChiVMV isolates from seven Asian regions. Pairwise F ST values between ChiVMV populations ranged from 0.108 to 0.681, indicating a significant spatial structure for this pathogen. In phylogeny-trait association analysis, the viral isolates from the same region tended to group together, showing a distinct geographic feature. These results suggest that geographic driven adaptation may be an important determinant of the genetic diversity of ChiVMV.

Keywords: Chilli veinal mottle virus; phylogeny-trait association analysis; positive selection; recombination.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adaptation, Biological / genetics
  • Bayes Theorem
  • Capsicum / virology
  • Capsid Proteins / genetics*
  • Genes, Viral / genetics
  • Genetic Variation / genetics
  • Phylogeny
  • Phylogeography
  • Potyvirus / genetics*

Substances

  • Capsid Proteins