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Wide-ranging transcriptomic analysis of Poncirus trifoliata, Citrus sunki, Citrus sinensis and contrasting hybrids reveals HLB tolerance mechanisms.
Curtolo, Maiara; de Souza Pacheco, Inaiara; Boava, Leonardo Pires; Takita, Marco Aurélio; Granato, Laís Moreira; Galdeano, Diogo Manzano; de Souza, Alessandra Alves; Cristofani-Yaly, Mariângela; Machado, Marcos Antonio.
Afiliación
  • Curtolo M; Centro de Citricultura Sylvio Moreira, Instituto Agronômico de Campinas, Cordeirópolis, SP, Brazil. maiaramc@hotmail.com.
  • de Souza Pacheco I; Universidade Estadual de Campinas, Campinas, SP, Brazil. maiaramc@hotmail.com.
  • Boava LP; Centro de Citricultura Sylvio Moreira, Instituto Agronômico de Campinas, Cordeirópolis, SP, Brazil.
  • Takita MA; Universidade Estadual de Campinas, Campinas, SP, Brazil.
  • Granato LM; Centro de Citricultura Sylvio Moreira, Instituto Agronômico de Campinas, Cordeirópolis, SP, Brazil.
  • Galdeano DM; Centro de Citricultura Sylvio Moreira, Instituto Agronômico de Campinas, Cordeirópolis, SP, Brazil.
  • de Souza AA; Centro de Citricultura Sylvio Moreira, Instituto Agronômico de Campinas, Cordeirópolis, SP, Brazil.
  • Cristofani-Yaly M; Centro de Citricultura Sylvio Moreira, Instituto Agronômico de Campinas, Cordeirópolis, SP, Brazil.
  • Machado MA; Centro de Citricultura Sylvio Moreira, Instituto Agronômico de Campinas, Cordeirópolis, SP, Brazil.
Sci Rep ; 10(1): 20865, 2020 11 30.
Article en En | MEDLINE | ID: mdl-33257732
Huanglongbing (HLB), caused mainly by 'Candidatus Liberibacter asiaticus' (CLas), is the most devastating citrus disease because all commercial species are susceptible. HLB tolerance has been observed in Poncirus trifoliata and their hybrids. A wide-ranging transcriptomic analysis using contrasting genotypes regarding HLB severity was performed to identify the genetic mechanism associated with tolerance to HLB. The genotypes included Citrus sinensis, Citrus sunki, Poncirus trifoliata and three distinct groups of hybrids obtained from crosses between C. sunki and P. trifoliata. According to bacterial titer and symptomatology studies, the hybrids were clustered as susceptible, tolerant and resistant to HLB. In P. trifoliata and resistant hybrids, genes related to specific pathways were differentially expressed, in contrast to C. sinensis, C. sunki and susceptible hybrids, where several pathways were reprogrammed in response to CLas. Notably, a genetic tolerance mechanism was associated with the downregulation of gibberellin (GA) synthesis and the induction of cell wall strengthening. These defense mechanisms were triggered by a class of receptor-related genes and the induction of WRKY transcription factors. These results led us to build a hypothetical model to understand the genetic mechanisms involved in HLB tolerance that can be used as target guidance to develop citrus varieties or rootstocks with potential resistance to HLB.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedades de las Plantas / Citrus sinensis / Poncirus / Transcriptoma Tipo de estudio: Prognostic_studies Idioma: En Revista: Sci Rep Año: 2020 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedades de las Plantas / Citrus sinensis / Poncirus / Transcriptoma Tipo de estudio: Prognostic_studies Idioma: En Revista: Sci Rep Año: 2020 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido