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dc.contributor.authorFAVERO, A. P.
dc.contributor.authorCUSTODIO, A. R.
dc.contributor.authorDINATO, N. B.
dc.contributor.authorGODOY, I. J. de
dc.contributor.authorSEIJO, J. G.
dc.contributor.authorMICHELOTTO, M. D.
dc.date.accessioned2020-11-19T09:15:42Z-
dc.date.available2020-11-19T09:15:42Z-
dc.date.created2020-11-18
dc.date.issued2020
dc.identifier.citationGenetics and Molecular Biology, v. 43, n. 2, jun. 2020, e20190099.
dc.identifier.issn1678-4685
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1126785-
dc.descriptionPeanut (Arachis hypogaea L.) is a tetraploid species with an A and B genome, while the majority of wild Arachis species are diploid with distinct genomes. In pre-breeding programs, one way to introgress interesting wild genes into peanut is by producing amphidiploids. This study aimed at the hybridization between distinct amphidiploids and their characterization, to combine high crossability with peanut, observed in some amphidiploids, with high pest and disease resistances observed in others. These new hybrids were called complex hybrids. Four amphidiploids previously obtained were crossed at four different combinations, and the derived complex hybrids were crossed with four peanut cultivars. Morphological, reproductive, chromosome complement, molecular markers for hybrid identification, phytopatological, and entomological characterizations were performed on the complex hybrids. All cross combinations resulted in complex hybrids. One complete complement of each diploid progenitor was confirmed in each hybrid. Plants of six distinct hybrid combinations were obtained between the complex hybrids and peanut. Based on morphological characterization, differences among progenies from distinct cross combinations were observed. Complex hybrids were considered more resistant to all diseases and pests than peanut cultivars. The simultaneous introgression of genes from four wild Arachis species into peanut was possible through the development of complex hybrids.
dc.language.isoeng
dc.rightsopenAccesseng
dc.subjectAmphidiploids
dc.subjectWild species
dc.subjectGroundnut
dc.titleTransference of multiple resistance to peanut through the development of cross-compatible complex hybrids of wild Arachis.
dc.typeArtigo de periódico
dc.subject.thesagroArachis Hypogaea
dc.subject.nalthesaurusGenetic resources
riaa.ainfo.id1126785
riaa.ainfo.lastupdate2020-11-23 -02:00:00
dc.identifier.doihttps://doi.org/10.1590/1678-4685-GMB-2019-0099
dc.contributor.institutionALESSANDRA PEREIRA FAVERO, CPPSE
dc.contributor.institutionADRIANA REGINA CUSTODIO, Bolsista da Embrapa Recursos Genéticos e Biotecnologiaeng
dc.contributor.institutionNaiana Barbosa Dinato, UFSCAReng
dc.contributor.institutionIgnácio José de Godoy, INSTITUTO AGRONÔMICOeng
dc.contributor.institutionJosé Guillermo Seijo, Universidad Nacional del Nordeste, Argentinaeng
dc.contributor.institutionMarcos Doniseti Michelotto, Agência Paulista de Tecnologia dos Agronegócios.eng
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