Efficient production of transgenic citrus plants using isopentenyl transferase positive selection and removal of the marker gene by site-specific recombination

The presence of marker genes conferring antibiotic resistance in transgenic plants represents a serious obstacle for their public acceptance and future commercialization. In citrus, selection using the selectable marker gene nptII, that confers resistance to the antibiotic kanamycin, is in general v...

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Autores principales: Ballester, Alida, Cervera, Magdalena, Pena, Leandro
Formato: article
Lenguaje:Inglés
Publicado: 2017
Acceso en línea:http://hdl.handle.net/20.500.11939/4661
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author Ballester, Alida
Cervera, Magdalena
Pena, Leandro
author_browse Ballester, Alida
Cervera, Magdalena
Pena, Leandro
author_facet Ballester, Alida
Cervera, Magdalena
Pena, Leandro
author_sort Ballester, Alida
collection ReDivia
description The presence of marker genes conferring antibiotic resistance in transgenic plants represents a serious obstacle for their public acceptance and future commercialization. In citrus, selection using the selectable marker gene nptII, that confers resistance to the antibiotic kanamycin, is in general very effective. An attractive alternative is offered by the MAT system (Multi-Auto-Transformation), which combines the ipt gene for positive selection with the recombinase system R/RS for removal of marker genes from transgenic cells after transformation. Transformation with a MAT vector has been attempted in two citrus genotypes, Pineapple sweet orange (Citrus sinensis L. Osb.) and Carrizo citrange (C. sinensis L. Osb. x Poncirus trifoliata L. Raf.). Results indicated that the IPT phenotype was clearly distinguishable in sweet orange but not in citrange, and that excision was not always efficient and precise. Nevertheless, the easy visual detection of the IPT phenotype combined with the higher transformation efficiency achieved in sweet orange using this system open interesting perspectives for the generation of marker-free transgenic citrus plants.
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spelling ReDivia46612025-04-25T14:44:07Z Efficient production of transgenic citrus plants using isopentenyl transferase positive selection and removal of the marker gene by site-specific recombination Ballester, Alida Cervera, Magdalena Pena, Leandro The presence of marker genes conferring antibiotic resistance in transgenic plants represents a serious obstacle for their public acceptance and future commercialization. In citrus, selection using the selectable marker gene nptII, that confers resistance to the antibiotic kanamycin, is in general very effective. An attractive alternative is offered by the MAT system (Multi-Auto-Transformation), which combines the ipt gene for positive selection with the recombinase system R/RS for removal of marker genes from transgenic cells after transformation. Transformation with a MAT vector has been attempted in two citrus genotypes, Pineapple sweet orange (Citrus sinensis L. Osb.) and Carrizo citrange (C. sinensis L. Osb. x Poncirus trifoliata L. Raf.). Results indicated that the IPT phenotype was clearly distinguishable in sweet orange but not in citrange, and that excision was not always efficient and precise. Nevertheless, the easy visual detection of the IPT phenotype combined with the higher transformation efficiency achieved in sweet orange using this system open interesting perspectives for the generation of marker-free transgenic citrus plants. 2017-06-01T10:10:41Z 2017-06-01T10:10:41Z 2007 JAN 2007 article BallE., Alida, Cervera, M., Pena, L. (2007). Efficient production of transgenic citrus plants using isopentenyl transferase positive selection and removal of the marker gene by site-specific recombination. Plant Cell Reports, 26(1), 39-45. 0721-7714 http://hdl.handle.net/20.500.11939/4661 10.1007/s00299-006-0197-3 en openAccess Impreso
spellingShingle Ballester, Alida
Cervera, Magdalena
Pena, Leandro
Efficient production of transgenic citrus plants using isopentenyl transferase positive selection and removal of the marker gene by site-specific recombination
title Efficient production of transgenic citrus plants using isopentenyl transferase positive selection and removal of the marker gene by site-specific recombination
title_full Efficient production of transgenic citrus plants using isopentenyl transferase positive selection and removal of the marker gene by site-specific recombination
title_fullStr Efficient production of transgenic citrus plants using isopentenyl transferase positive selection and removal of the marker gene by site-specific recombination
title_full_unstemmed Efficient production of transgenic citrus plants using isopentenyl transferase positive selection and removal of the marker gene by site-specific recombination
title_short Efficient production of transgenic citrus plants using isopentenyl transferase positive selection and removal of the marker gene by site-specific recombination
title_sort efficient production of transgenic citrus plants using isopentenyl transferase positive selection and removal of the marker gene by site specific recombination
url http://hdl.handle.net/20.500.11939/4661
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