Please use this identifier to cite or link to this item: http://dspace.mediu.edu.my:8181/xmlui/handle/123456789/3842
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dc.creatorMendes Beatriz Madalena Januzzi-
dc.creatorBoscariol Raquel Luciana-
dc.creatorMourão Filho Francisco de Assis Alves-
dc.creatorAlmeida Weliton Antonio Bastos de-
dc.date2002-
dc.date.accessioned2013-05-30T05:09:54Z-
dc.date.available2013-05-30T05:09:54Z-
dc.date.issued2013-05-30-
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2002000700009-
dc.identifierhttp://www.doaj.org/doaj?func=openurl&genre=article&issn=0100204X&date=2002&volume=37&issue=7&spage=955-
dc.identifier.urihttp://koha.mediu.edu.my:8181/jspui/handle/123456789/3842-
dc.descriptionThe development and optimization of efficient transformation protocols is essential in new citrus breeding programs, not only for rootstock, but also for scion improvement. Transgenic 'Hamlin' sweet orange (Citrus sinensis (L.) Osbeck) plants were obtained by Agrobacterium tumefaciens-mediated transformation of epicotyl segments collected from seedlings germinated in vitro. Factors influencing genetic transformation efficiency were evaluated including seedling incubation conditions, time of inoculation with Agrobacterium and co-culture conditions. Epicotyl segments were adequate explants for transformation, regenerating plants by direct organogenesis. Higher percentage of transformation was obtained with explants collected from seedlings germinated in darkness, transferred to 16 hours photoperiod for 2-3 weeks, and inoculated with Agrobacterium for 15-45 min. The best co-culture condition was the incubation of the explants in darkness, for three days in culture medium supplemented with 100 muM of acetosyringone. Genetic transformation was confirmed by performing beta-glucoronidase (GUS) assays and, subsequently, by PCR amplification for the nptII and GUS genes.-
dc.publisherEmpresa Brasileira de Pesquisa Agropecuária (Embrapa)-
dc.sourcePesquisa Agropecuária Brasileira-
dc.subjectCitrus sinensis-
dc.subjectepicotyls-
dc.subjectseedlings-
dc.subjecttransgenics-
dc.subjectbreeding methods-
dc.titleAgrobacterium-mediated genetic transformation of 'Hamlin' sweet orange-
Appears in Collections:Agriculture and Food Sciences

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