MyJournals Home  

RSS FeedsViruses, Vol. 12, Pages 111: Host Range Evolution of Potyviruses: A Global Phylogenetic Analysis (Viruses)

 
 

16 january 2020 13:00:13

 
Viruses, Vol. 12, Pages 111: Host Range Evolution of Potyviruses: A Global Phylogenetic Analysis (Viruses)
 


Virus host range, i.e., the number and diversity of host species of viruses, is an important determinant of disease emergence and of the efficiency of disease control strategies. However, for plant viruses, little is known about the genetic or ecological factors involved in the evolution of host range. Using available genome sequences and host range data, we performed a phylogenetic analysis of host range evolution in the genus Potyvirus, a large group of plant RNA viruses that has undergone a radiative evolution circa 7000 years ago, contemporaneously with agriculture intensification in mid Holocene. Maximum likelihood inference based on a set of 59 potyviruses and 38 plant species showed frequent host range changes during potyvirus evolution, with 4.6 changes per plant species on average, including 3.1 host gains and 1.5 host loss. These changes were quite recent, 74% of them being inferred on the terminal branches of the potyvirus tree. The most striking result was the high frequency of correlated host gains occurring repeatedly in different branches of the potyvirus tree, which raises the question of the dependence of the molecular and/or ecological mechanisms involved in adaptation to different plant species.


 
118 viewsCategory: Epidemiology, Virology
 
Viruses, Vol. 12, Pages 104: An RNA Thermometer Activity of the West Nile Virus Genomic 3-Terminal Stem-Loop Element Modulates Viral Replication Efficiency during Host Switching (Viruses)
Viruses, Vol. 12, Pages 110: Bright and Early: Inhibiting Human Cytomegalovirus by Targeting Major Immediate-Early Gene Expression or Protein Function (Viruses)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Virology


Copyright © 2008 - 2020 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Nachrichten