@article{fdi:010069663,
  title = {{D}eterminants of host species range in plant viruses},
  author = {{M}oury, {B}. and {F}abre, {F}. and {H}{\'e}brard, {E}ug{\'e}nie and {F}roissart, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}rediction of pathogen emergence is an important field of research, both in human health and in agronomy. {M}ost studies of pathogen emergence have focused on the ecological or anthropic factors involved rather than on the role of intrinsic pathogen properties. {T}he capacity of pathogens to infect a large set of host species, i.e. to possess a large host range breadth ({HRB}), is tightly linked to their emergence propensity. {U}sing an extensive plant virus database, we found that four traits related to virus genome or transmission properties were strongly and robustly linked to virus {HRB}. {B}roader host ranges were observed for viruses with single-stranded genomes, those with three genome segments and nematode-transmitted viruses. {A}lso, two contrasted groups of seed-transmitted viruses were evidenced. {T}hose with a single-stranded genome had larger {HRB} than non-seed-transmitted viruses, whereas those with a double-stranded genome (almost exclusively {RNA}) had an extremely small {HRB}. {F}rom the plant side, the family taxonomic rank appeared as a critical threshold for virus host range, with a highly significant increase in barriers to infection between plant families. {A}ccordingly, the plant–virus infectivity matrix shows a dual structure pattern: a modular pattern mainly due to viruses specialized to infect plants of a given family and a nested pattern due to generalist viruses. {T}hese results contribute to a better prediction of virus host jumps and emergence risks.},
  keywords = {},
  booktitle = {},
  journal = {{J}ournal of {G}eneral {V}irology},
  volume = {98},
  numero = {4},
  pages = {862--873},
  ISSN = {0022-1317},
  year = {2017},
  URL = {https://www.documentation.ird.fr/hor/fdi:010069663},
}