Evolutionarily related Sindbis-like plant viruses maintain different levels of population diversity in a common host

William L. Schneider, Marilyn J. Roossinck

Research output: Contribution to journalArticlepeer-review

95 Scopus citations

Abstract

The levels of population diversity of three related Sindbis-like plant viruses, Tobacco mosaic virus (TMV), Cucumber mosaic virus (CMV), and Cowpea chlorotic mottle virus (CCMV), in infections of a common host, Nicotiana benthamiana, established from genetically identical viral RNA were examined. Despite probably having a common evolutionary ancestor, the three viruses maintained different levels of population diversity. CMV had the highest levels of diversity, TMV had an intermediate level of diversity, and CCMV had no measurable level of diversity in N. benthamiana. Interestingly, the levels of diversity were correlated to the relative host range sizes of the three viruses. The levels of diversity also remained relatively constant over the course of serial passage. Closer examination of the CMV and TMV populations revealed biases for particular types of substitutions and regions of the genome that may tolerate fewer mutations.

Original languageEnglish (US)
Pages (from-to)3130-3134
Number of pages5
JournalJournal of virology
Volume74
Issue number7
DOIs
StatePublished - 2000

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Immunology
  • Insect Science
  • Virology

Fingerprint Dive into the research topics of 'Evolutionarily related Sindbis-like plant viruses maintain different levels of population diversity in a common host'. Together they form a unique fingerprint.

Cite this