Publications des scientifiques de l'IRD

Dellicour S., Vrancken B., Trovao N. S., Fargette Denis, Lemey P. (2018). On the importance of negative controls in viral landscape phylogeography. Virus Evolution, 4 (2), p. vey023 [9 p.]. ISSN 2057-1577.

Titre du document
On the importance of negative controls in viral landscape phylogeography
Année de publication
2018
Type de document
Article référencé dans le Web of Science WOS:000456426800005
Auteurs
Dellicour S., Vrancken B., Trovao N. S., Fargette Denis, Lemey P.
Source
Virus Evolution, 2018, 4 (2), p. vey023 [9 p.] ISSN 2057-1577
Phylogeographic reconstructions are becoming an established procedure to evaluate the factors that could impact virus spread. While a discrete phylogeographic approach can be used to test predictors of transition rates among discrete locations, alternative continuous phylogeographic reconstructions can also be exploited to investigate the impact of underlying environmental layers on the dispersal velocity of a virus. The two approaches are complementary tools for studying pathogens' spread, but in both cases, care must be taken to avoid misinterpretations. Here, we analyse rice yellow mottle virus (RYMV) sequence data from West and East Africa to illustrate how both approaches can be used to study the impact of environmental factors on the virus' dispersal frequency and velocity. While it was previously reported that host connectivity was a major determinant of RYMV spread, we show that this was a false positive result due to the lack of appropriate negative controls. We also discuss and compare the phylodynamic tools currently available for investigating the impact of environmental factors on virus spread.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020] ; Sciences du monde végétal [076]
Localisation
Fonds IRD [F B010074954]
Identifiant IRD
fdi:010074954
Contact