@article{fdi:010085121,
  title = {{I}nsights into the genetics of the {Z}honghua 11 resistance to {M}eloidogyne graminicola and its molecular determinism in rice},
  author = {{N}guyen, {H}. {T}. and {M}antelin, {S}. and {H}a, {C}. {V}. and {L}orieux, {M}athias and {J}ones, {J}. {T}. and {M}ai, {C}. {D}. and {B}ellafiore, {S}t{\'e}phane},
  editor = {},
  language = {{ENG}},
  abstract = {{M}eloidogyne graminicola is a widely spread nematode pest of rice that reduces crop yield up to 20% on average in {A}sia, with devastating consequences for local and global rice production. {D}ue to the ban on many chemical nematicides and the recent changes in water management practices in rice agriculture, an even greater impact of {M}. graminicola can be expected in the future, stressing the demand for the development of new sustainable nematode management solutions. {R}ecently, a source of resistance to {M}. graminicola was identified in the {O}ryza sativa japonica rice variety {Z}honghua 11 ({Z}h11). {I}n the present study, we examine the genetics of the {Z}h11 resistance to {M}. graminicola and provide new insights into its cellular and molecular mechanisms. {T}he segregation of the resistance in {F}-2 hybrid populations indicated that two dominant genes may be contributing to the resistance. {T}he incompatible interaction of {M}. graminicola in {Z}h11 was distinguished by a lack of swelling of the root tips normally observed in compatible interactions. {A}t the cellular level, the incompatible interaction was characterised by a rapid accumulation of reactive oxygen species in the vicinity of the nematodes, accompanied by extensive necrosis of neighbouring cells. {T}he expression profiles of several genes involved in plant immunity were analysed at the early stages of infection during compatible (susceptible plant) and incompatible (resistant plant) interactions. {N}otably, the expression of {O}s{A}tg4 and {O}s{A}tg7, significantly increased in roots of resistant plants in parallel with the cell death response, suggesting that autophagy is activated and may contribute to the resistance-mediated hypersensitive response. {S}imilarly, transcriptional regulation of genes involved in hormonal pathways in {Z}h11 indicated that salicylate signalling may be important in the resistance response towards {M}. graminicola. {F}inally, the nature of the resistance to {M}. graminicola and the potential exploitation of the {Z}h11 resistance for breeding are discussed.},
  keywords = {genetic determinism ; hypersensitive response ({HR}) ; incompatible ; interaction ; root-knot nematode ({M}eloidogyne graminicola) ; resistance ; rice ; salicylic acid ; {ASIE}},
  booktitle = {},
  journal = {{F}rontiers in {P}lant {S}cience},
  volume = {13},
  numero = {},
  pages = {854961 [16 ]},
  ISSN = {1664-462{X}},
  year = {2022},
  DOI = {10.3389/fpls.2022.854961},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085121},
}