@article{fdi:010052096,
  title = {{O}ccurrence of resistance-breaking isolates of {R}ice yellow mottle virus in {W}est and {C}entral {A}frica},
  author = {{T}raore, {O}. and {P}inel, {A}gn{\`e}s and {H}{\'e}brard, {E}ug{\'e}nie and {G}umedzoe, {M}.{Y}.{D}. and {F}argette, {D}enis and {T}raore, {A}.{S}. and {K}onate, {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{R}ice yellow mottle virus ({RYMV}) is the most important rice-infecting virus in {A}frica. {H}ighly resistant rice ({O}ryza spp.) cultivars {G}igante and {T}og5681 were challenged with virus isolates from five countries of the west and central {A}frican {S}udano-savannah zone in order to investigate the occurrence and prevalence of resistance-breaking ({RB}) isolates. {H}igh resistance was overcome by 38.6% of the isolates. {RB} isolates could be divided into three main pathogenic groups. {I}solates of the first group (17.5%) and of the second group (16.4%) were able to break down the resistance of {G}igante only and of {T}og5681 only, respectively. {R}esistance in both cultivars was overcome simultaneously by isolates of the third group (4.7%). {I}ll each group, some isolates induced symptoms, whereas plant infection by others was evidenced only by scrological tests. {RB} isolates occurred in all five countries with varying frequencies (19 to 57%). {T}he wide geographical distribution and high frequencies of {RB} isolates represent a high risk for the durability of resistance to {RYMV} in the {S}udano-savannah zone.},
  keywords = {},
  booktitle = {},
  journal = {{P}lant {D}isease},
  volume = {90},
  numero = {3},
  pages = {259--263},
  ISSN = {0191 2917},
  year = {2006},
  DOI = {10.1094/{PD}-90-0259},
  URL = {https://www.documentation.ird.fr/hor/fdi:010052096},
}