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The Cape gooseberry (Physalisperuviana L) is an Andean exotic fruit with high nutritional value and appealing medicinal properties. However, its cultivation faces important phytosanitary problems mainly due to pathogens like Fusarium oxysporum, Cercosporaphysalidis and Alternaria spp. Here we used the Cape gooseberry foliar transcriptome to search for proteins that encode conserved domains related to plant immunity including: NBS (Nucleotide Binding Site), CC (Coiled-Coil), TIR (Toll/Interleukin-1 Receptor). We identified 74 immunity related gene candidates in P. peruviana which have the typical resistance gene (R-gene) architecture, 17 Receptor like kinase (RLKs) candidates related to PAMP-Triggered Immunity (PTI), eight (TIR-NBS-LRR, or TNL) and nine (CC-NBS-LRR, or CNL) candidates related to Effector-Triggered Immunity (ETI) genes among others. These candidate genes were categorized by molecular function (98%), biological process (85%) and cellular component (79%) using gene ontology. Some of the most interesting predicted roles were those associated with binding and transferase activity. We designed 94 primers pairs from the 74 immunity-related genes (IRGs) to amplify the corresponding genomic regions on six genotypes that included resistant and susceptible materials. From these, we selected 17 single band amplicons and sequenced them in 14 F. oxysporum resistant and susceptible genotypes. Sequence polymorphisms were analyzed through preliminary candidate gene association, which allowed the detection of one SNP at the PpIRG-63 marker revealing a nonsynonymous mutation in the predicted LRR domain suggesting functional roles for resistance.

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Directory of Open Access Journals - Articles  

Autor(es)

Felix E Enciso -  Rodríguez -  Carolina González -  Edwin A Rodríguez -  Camilo E López -  David Landsman -  Luz Stella Barrero -  Leonardo Mariño -  Ramírez - 

Id.: 65669476

Idioma: EN  - 

Versión: 1.0

Estado: Final

Palabras claveMedicine - 

Tipo de recurso: article  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: CC BY

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] PLoS ONE, Vol 8, Iss 7, p e68500 (2013)
[References] http://europepmc.org/articles/PMC3701084?pdf=render
[References] https://doaj.org/toc/1932-6203

Fecha de contribución: 16-jun-2016

Contacto:

Localización:
* 10.1371/journal.pone.0068500
* 1932-6203

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