Symptom evolution following the emergence of maize streak virus

For pathogens infecting single host species evolutionary trade-offs have previously been demonstrated between pathogen-induced mortality rates and transmission rates. It remains unclear, however, how such trade-offs impact sub-lethal pathogen-inflicted damage, and whether these trade-offs even occur...

Full description

Saved in:
Bibliographic Details
Published in:eLife 2020-01, Vol.9
Main Authors: Monjane, Adérito L, Dellicour, Simon, Hartnady, Penelope, Oyeniran, Kehinde A, Owor, Betty E, Bezuidenhout, Marion, Linderme, Daphné, Syed, Rizwan A, Donaldson, Lara, Murray, Shane, Rybicki, Edward P, Kvarnheden, Anders, Yazdkhasti, Elham, Lefeuvre, Pierre, Froissart, Rémy, Roumagnac, Philippe, Shepherd, Dionne N, Harkins, Gordon W, Suchard, Marc A, Lemey, Philippe, Varsani, Arvind, Martin, Darren P
Format: Article
Language:English
Subjects:
Agricultural Science
Cell cycle
chlorosis
Corn
Evolution
Evolution, Molecular
Evolutionary Biology
evolutionary trade-off
Genotypes
Host-Pathogen Interactions - genetics
Host-Pathogen Interactions - physiology
Infections
Jordbruksvetenskap
Life Sciences
Maize streak virus - pathogenicity
Maize streak virus - physiology
Microbiology and Parasitology
Mortality
pathogenicity
Pathogens
Phylogeny
Plant Diseases - classification
Plant Diseases - genetics
Plant Diseases - virology
Plant Necrosis and Chlorosis - classification
Plant Necrosis and Chlorosis - genetics
Plant Necrosis and Chlorosis - virology
Probability
Vectors
virulence
Viruses
Zea mays - genetics
Zea mays - physiology
Zea mays - virology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:For pathogens infecting single host species evolutionary trade-offs have previously been demonstrated between pathogen-induced mortality rates and transmission rates. It remains unclear, however, how such trade-offs impact sub-lethal pathogen-inflicted damage, and whether these trade-offs even occur in broad host-range pathogens. Here, we examine changes over the past 110 years in symptoms induced in maize by the broad host-range pathogen, maize streak virus (MSV). Specifically, we use the quantified symptom intensities of cloned MSV isolates in differentially resistant maize genotypes to phylogenetically infer ancestral symptom intensities and check for phylogenetic signal associated with these symptom intensities. We show that whereas symptoms reflecting harm to the host have remained constant or decreased, there has been an increase in how extensively MSV colonizes the cells upon which transmission vectors feed. This demonstrates an evolutionary trade-off between amounts of pathogen-inflicted harm and how effectively viruses position themselves within plants to enable onward transmission.
ISSN:2050-084X
2050-084X
DOI:10.7554/eLife.51984