Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/542344
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dc.contributor.authorRITSCHEL, P. S.eng
dc.contributor.authorREVERS, L. F.eng
dc.contributor.authorLEITE, G. B.eng
dc.contributor.authorFERREIRA, M. E.eng
dc.contributor.authorOLIVEIRA, P. R. D. deeng
dc.date.accessioned2019-04-19T01:38:47Z-
dc.date.available2019-04-19T01:38:47Z-
dc.date.created2008-01-22
dc.date.issued2007
dc.identifier.citationIn: INTERNATIONAL PEAR SYMPOSIUM, 10., 2007, Peniche. Programme and abstracts. [Alcobaça, Portugal: ISHS], 2007.eng
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/542344-
dc.descriptionGenetic diversity of germplasm collections is the base of breeding programs and it is essential to the raising of new genetic combinations aimed at the development of new cultivars. In Brazil, the pear germplasm collection is maintained in orchards by the EPAGRI-EE Caçador. The aim of this work was to analyze the genetic diversity of an initial sample of 46 accessions of this collection, by Random Amplified Polymorphic DNA (RAPD). European (Pyrus communis), Asian (P. pyrifolia and P. ussuriensis) and hybrid cultivars were used. From 160 randomic primers, 11 primers, yielding 87 reproducible and polymorphic markers, were chosen and used for similarity analysis. The cluster analysis resulted in a dendrogram that showed, with few exceptions, European, Asian and hybrid cultivars as distinct groups. By using these markers, the Chinese and Japanese cultivars could be discriminated. The study illustrates how genetic information can be valuable to the organization of germplasm collections. Accessions named differently as ‘William’s’ and ‘Bartlett’ showed 100% of genetic similarity and probably correspond to the European pear cultivar ‘Bon Chrétien Williams’ (synonym: ‘Williams – Bartlett de Boston’). On the other hand, two accessions identified with the same name, ‘Óstia’, did not show genetic identity and are, therefore, distinct accessions. This study is being extended to several other accessions of the collection and completed with the analysis of DNA hypervariable regions (microsatellites).eng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectAnálise genéticaeng
dc.titleGenetic analysis of accessions in a pear germplasm bank.eng
dc.typeArtigo em anais e proceedingseng
dc.date.updated2019-10-22T11:11:11Z
dc.subject.thesagroBanco de Germoplasmaeng
dc.subject.thesagroBiotecnologiaeng
dc.subject.thesagroDNAeng
dc.subject.thesagroFruticulturaeng
dc.subject.thesagroGenéticaeng
dc.subject.thesagroPêraeng
dc.description.notesResumo PO 37.eng
dc.format.extent2p. 40.eng
riaa.ainfo.id542344eng
riaa.ainfo.lastupdate2019-10-22 -03:00:00
dc.contributor.institutionPatrícia Silva Ritschel, Embrapa Uva e Vinho; Luis Fernando Revers, Embrapa Uva e Vinho; Paulo Ricardo Dias de Oliveira, Embrapa Uva e Vinho; G. B. Leite, EPAGRI-EE; M. E. Ferreira, Embrapa Recursos Genéticos e Biotecnologia.eng
Aparece nas coleções:Artigo em anais de congresso (CNPUV)

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