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Er3 gene, conferring resistance to Erysiphe pisi, is located in pea LGIV

AuthorsCobos, María José; Rubiales, Diego ; Fondevilla, Sara
Issue Date2016
CitationSecond International Legume Society Conference (2016)
AbstractThree genes for resistance to Erysiphe pisi, named er1, er2 and Er3 have been described in pea so far. er1 gene is located in pea linkage group VI, while er2 gene has been mapped in LGIII. SCAR and RAPD markers tightly linked to Er3 gene have been identified, but the position of these markers in the pea genetic map was un known. In this study the pea cv. Messire and a near isogenic line of Messire containing Er3 gene (cv. Eritreo) were surveyed with SSRs with known position in the pea map. Two SSRs previously mapped in LGIV were polymorphic between cv. Messire and cv. Eritreo and between two contrasting bulks homozygous for Er3 or er3 alleles. Further linkage analysis confirmed that these SSRs were linked to Er3 and to the RAPD and SCAR markers previously reported to be linked to this gene. Therefore, this study demonstrates that Er3 gene is located in pea LGIV.
DescriptionTrabajo presentado en el Second International Legume Society Conference "Legumes for a sustainable world" (ILS2), celebrado en Tróia (Portugal) del 11 al 14 de octubre de 2016.
Appears in Collections:(IAS) Comunicaciones congresos
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