Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/39375
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dc.creatorBisi, Rayane Barcelos-
dc.creatorPio, Rafael-
dc.creatorFarias, Daniela da Hora-
dc.creatorLocatelli, Guilherme-
dc.creatorBarbosa, Caio Morais de Alcântara-
dc.creatorPereira, Welison Andrade-
dc.date.accessioned2020-03-25T14:47:21Z-
dc.date.available2020-03-25T14:47:21Z-
dc.date.issued2019-12-
dc.identifier.citationBISI, R. B. et al. Molecular characterization of the s-alleles and compatibility among hybrid pear tree cultivars for subtropical regions. HortScience, [S.l.], v. 54, n. 12, p. 2104-2110, 2019. DOI: 10.21273/HORTSCI14261-19.pt_BR
dc.identifier.urihttps://journals.ashs.org/hortsci/view/journals/hortsci/54/12/article-p2104.xmlpt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/39375-
dc.description.abstractPear (Pyrus spp.) is a temperate-climate fruit species that has gametophytic self-incompatibility. Cross-pollination among intercompatible cultivars can be useful in selecting for breeding programs. The objective of the present study was to evaluate effective fruiting from cross-pollination between hybrid pear cultivars and to characterize pear tree S-alleles. Seven cultivars were evaluated: Cascatense, Centenária, D’água, Primorosa, Seleta, Tenra, and Triunfo. Controlled crosses were carried out in two seasons and consisted of spontaneous self-pollination, parthenocarpy, and cross-pollination between cultivars. During the 2 years of research, the overlap of the entire flowering periods of all cultivars was higher than 50%. Phenology was evaluated from the beginning of pruning, and the time elapsed from pruning to the flowering phenophase was computed. Finally, the flowering-period overlap of the cultivars was analyzed. S-alleles were characterized by polymerase chain reaction (PCR) using primers specific to previously known alleles. Under field conditions, the Primorosa cultivar has high potential as a pollinizer for D’água, Seleta, Tenra, and Triunfo. Pear tree hybrid cultivars have a high frequency of the S1 and S5 alleles. The S5S8 and S1S4 alleles are amplified in the D’água and Seleta cultivars, respectively, conferring compatibility between these cultivars. The S1 and S5 alleles are amplified in ‘Primorosa’, ‘Cascatense’, and ‘Triunfo’, conferring interincompatibility.pt_BR
dc.languageen_USpt_BR
dc.publisherAmerican Society for Horticultural Science (ASHS)pt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceHortSciencept_BR
dc.subjectPyruspt_BR
dc.subjectRosaceaept_BR
dc.subjectS-allelept_BR
dc.subjectSelf-incompatibilitypt_BR
dc.titleMolecular characterization of the s-alleles and compatibility among hybrid pear tree cultivars for subtropical regionspt_BR
dc.typeArtigopt_BR
Appears in Collections:DAG - Artigos publicados em periódicos
DBI - Artigos publicados em periódicos

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