@article{fdi:010088142,
  title = {{I}dentification and characterization of a virulent population of {M}eloidogyne graminicola},
  author = {{N}guyen, {H}. {T}. and {V}ang, {S}. and {P}han, {N}. {T}. and {C}zernic, {P}. and {T}rinh, {P}. {Q}. and {H}a, {C}. {V}. and {A}ribi, {J}amel and {M}asson, {A}. {S}. and {S}uong, {M}. and {B}ellafiore, {S}t{\'e}phane},
  editor = {},
  language = {{ENG}},
  abstract = {{R}esistant rice varieties are considered to be a potential alternative for controlling the plant-parasitic nematode {M}eloidogyne graminicola in the field due to their joint economic and environmental sustainability features. {H}owever, the emergence of virulent pathogen forms threatens natural resistance durability. {I}n this study, we isolated a virulent {M}. graminicola population from a naturally infested field in {C}ambodia that overcomes the resistance of the {O}ryza sativa {Z}honghua 11 rice variety. {W}e used molecular (internal transcribed spacer of r{DNA} and mitochondrial markers) and morphological approaches to unequivocally identify and confirm the species identification. {F}ew intraspecific variabilities in traits between the virulent pathotype and several avirulent pathotypes were found. {R}emarkably, histological analysis showed the absence of a hypersensitive response ({HR}) on root cells surrounding the nematode in the "virulent pathotype-{Z}honghua 11" interaction. {I}n addition, the virulent pathotype reproduced to a significant extent in two other {O}ryza sativa varieties known to be resistant to {M}. graminicola. {H}owever, this virulent population was unable to overcome the previously described resistance in three {O}ryza glaberrima varieties. {W}e concluded that the virulent {M}. graminicola pathotype isolated in this study could compromise rice breeding programs based on the sole use of known resistant {O}. sativa gene pools. {T}he identification of this virulent pathotype should provide the genetic resources needed to study the molecular mechanisms that may enable {M}. graminicola to bypass {HR} resistance.},
  keywords = {{R}oot-knot nematode ; {M}orphological characterization ; {V}irulence ; {R}esistance-breaking population ; {O}ryza ; {F}itness cost of virulence ; {I}ntraspecific variability ; {M}orphometric ; {ITS} ; {M}itochondrial markers ; {H}istological analysis ; {O}ryza sativa ; {O}ryza glaberrima},
  booktitle = {},
  journal = {{A}ustralasian {P}lant {P}athology},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[15 ]},
  ISSN = {0815-3191},
  year = {2023},
  DOI = {10.1007/s13313-023-00926-8},
  URL = {https://www.documentation.ird.fr/hor/fdi:010088142},
}