Identification of Novel Associations of Candidate Genes with Resistance to Late Blight in Solanum tuberosum Group Phureja

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dc.creatorÁlvarez, María Fernanda
dc.creatorAngarita, Myrian
dc.creatorDelgado, María C.
dc.creatorGarcía, Celsa
dc.creatorJiménez Gomez, José
dc.creatorGebhardt, Christiane
dc.creatorMosquera, Teresa
dc.date2017-06
dc.date2017-07-24T16:27:10Z
dc.date2017-07-24T16:27:10Z
dc.date.accessioned2026-06-27T14:29:54Z
dc.descriptionThe genetic basis of quantitative disease resistance has been studied in crops for several decades as an alternative to R gene mediated resistance. The most important disease in the potato crop is late blight, caused by the oomycete Phytophthora infestans. Quantitative disease resistance (QDR), as any other quantitative trait in plants, can be genetically mapped to understand the genetic architecture. Association mapping using DNA-based markers has been implemented in many crops to dissect quantitative traits. We used an association mapping approach with candidate genes to identify the first genes associated with quantitative resistance to late blight in Solanum tuberosum Group Phureja. Twenty-nine candidate genes were selected from a set of genes that were differentially expressed during the resistance response to late blight in tetraploid European potato cultivars. The 29 genes were amplified and sequenced in 104 accessions of S. tuberosum Group Phureja from Latin America. We identified 238 SNPs in the selected genes and tested them for association with resistance to late blight. The phenotypic data were obtained under field conditions by determining the area under disease progress curve (AUDPC) in two seasons and in two locations. Two genes were associated with QDR to late blight, a potato homolog of thylakoid lumen 15 kDa protein (StTL15A) and a stem 28 kDa glycoprotein (StGP28).
dc.identifierhttps://hdl.handle.net/10568/82858
dc.identifier.urihttp://hdl.handle.net/123456789/79949
dc.languageen
dc.publisherFrontiers Media
dc.rightsOpen Access
dc.sourceÁlvarez, María Fernanda; Angarita, Myrian; Delgado, María C.; García, Celsa; Jiménez-Gomez, José; Gebhardt, Christiane; Mosquera, Teresa. 2017. Identification of Novel Associations of Candidate Genes with Resistance to Late Blight in Solanum tuberosum Group Phureja . Frontier in Plant Science 8: 1040.
dc.subjectdisease resistance
dc.subjectsolanum tuberosum
dc.subjectpest control
dc.subjectgenetics
dc.subjectmapping
dc.subjectresistencia a la enfermedad
dc.subjectcontrol de plagas
dc.subjectgenética
dc.titleIdentification of Novel Associations of Candidate Genes with Resistance to Late Blight in Solanum tuberosum Group Phureja
dc.typeJournal Article

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Centro Internacional de Agricultura Tropical (CIAT)