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Fine mapping of Pi57 conferring broad spectrum resistance against Magnaporthe oryzae in introgression line IL-E1454 derived from Oryza longistaminata

Dong Liying, Liu Shuguang, Xu Peng, Deng Wei, Li Xundong, Tharreau Didier, Li Jing, Zhou Jiawu, Wang Qun, Tao Dayun, Yang Qinzhong. 2017. Fine mapping of Pi57 conferring broad spectrum resistance against Magnaporthe oryzae in introgression line IL-E1454 derived from Oryza longistaminata. PloS One, 12 (10):e0186201, 11 p.

Journal article ; Article de recherche ; Article de revue à facteur d'impact Revue en libre accès total
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Url - jeu de données : https://figshare.com/articles/Fine_mapping_of_i_Pi57_i_t_conferring_broad_spectrum_resistance_against_i_Magnaporthe_oryzae_i_in_introgression_line_IL-E1454_derived_from_i_Oryza_longistaminata_i_/5486431

Quartile : Q1, Sujet : MULTIDISCIPLINARY SCIENCES

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie; Staps

Abstract : Wild species of the genus Oryza are excellent gene pools for improvement of agronomic traits of Asian cultivated rice. The blast resistance gene Pi57(t) in the introgression line IL-E1454 derived from Oryza longistaminata was previously mapped on rice chromosome 12. Inoculation with 322 Magnaporthe oryzae isolates collected from 6 countries indicated that Pi57(t) conferred broad spectrum resistance against M. oryzae. Two mapping populations consisting of 29070 and 10375 F2 plants derived from the crosses of resistant donor IL-E1454 with susceptible parents RD23 and Lijiangxintuanheigu respectively, were used for fine mapping of Pi57(t) locus. Based on genotyping and phenotyping results of recombinants screened from the two crosses, Pi57(t) was finally mapped to a 51.7-kb region flanked by two molecular markers (STS57-320 and STS57-372) on the short arm and close to the centromere of chromosome 12. Six candidate resistance genes were predicted in the target region according to the reference sequence of Nipponbare. These results could facilitate both marker-assisted selection for disease-resistant breeding and gene cloning. (Résumé d'auteur)

Mots-clés Agrovoc : Oryza longistaminata, Oryza sativa, Magnaporthe grisea, Résistance génétique, Résistance aux maladies, Introgression, Génétique des populations, Gène, Carte génétique

Mots-clés géographiques Agrovoc : Cambodge, République démocratique populaire lao, Myanmar, Thaïlande, Viet Nam, Chine

Classification Agris : F30 - Plant genetics and breeding
H20 - Plant diseases

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Auteurs et affiliations

  • Dong Liying, Yunnan Academy of Agricultural Sciences (CHN)
  • Liu Shuguang, Yunnan Academy of Agricultural Sciences (CHN)
  • Xu Peng, Yunnan Academy of Agricultural Sciences (CHN)
  • Deng Wei, Yunnan Academy of Agricultural Sciences (CHN)
  • Li Xundong, Yunnan Academy of Agricultural Sciences (CHN)
  • Tharreau Didier, CIRAD-BIOS-UMR BGPI (FRA) ORCID: 0000-0003-3961-6120
  • Li Jing, Yunnan Academy of Agricultural Sciences (CHN)
  • Zhou Jiawu, Yunnan Academy of Agricultural Sciences (CHN)
  • Wang Qun, Yunnan Academy of Agricultural Sciences (CHN)
  • Tao Dayun, Yunnan Academy of Agricultural Sciences (CHN)
  • Yang Qinzhong, Yunnan Academy of Agricultural Sciences (CHN)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/585666/)

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