Fecha/hora: 15/06/2024 23:54:28

Biblioteca(s): | INIA Treinta y Tres.
Fecha corriente: | 03/12/2020
Fecha de la última actualización: | 03/12/2020
Autoria: | NARANCIO, R.; DING, Y.-L.; LIN, Y.-H.; SAHAB, S.; PANTER, S.; HAYES, M.; JOHN, U.; ANDERSON, H.; MASON, J.; SPANGENBERG, G.
Afiliación: | RAFAEL NARANCIO FERES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Agriculture Victoria Research, AgriBio, Centre for AgriBioscience, Bundoora, Australia; School of Applied Systems Biology, La Trobe University, Bundoora, Australia; YONG?LIN DING, Agriculture Victoria Research, AgriBio, Centre for AgriBioscience, Bundoora, Australia; YI?HAN LIN, Agriculture Victoria Research, AgriBio, Centre for AgriBioscience, Bundoora, Australia; SAREENA SAHAB, Agriculture Victoria Research, AgriBio, Centre for AgriBioscience, Bundoora, Australia; STEPHEN PANTER, Agriculture Victoria Research, AgriBio, Centre for AgriBioscience, Bundoora, Australia; MATTHEW HAYES, Triffid BioScience, PO Box 1986, Carlton South, Australia; ULRIK JOHN, Agriculture Victoria Research, AgriBio, Centre for AgriBioscience, Bundoora, Australia; HEATHER ANDERSON, Agriculture Victoria Research, AgriBio, Centre for AgriBioscience, Bundoora, Australia; JOHN MASON, Agriculture Victoria Research, AgriBio, Centre for AgriBioscience, Bundoora, Australia; School of Applied Systems Biology, La Trobe University, Bundoora, Australia; GERMAN SPANGENBERG, Agriculture Victoria Research, AgriBio, Centre for AgriBioscience, Bundoora, Australia; School of Applied Systems Biology, La Trobe University, Bundoora, Australia.
Título: | Correction to: Application of linked and unlinked co&#8209;transformation to generate triple stack, marker&#8209;free, transgenic white clover (Trifolium repens L.) (Plant Cell, Tissue and Organ Culture (PCTOC), (2020), 142, 3, (635-646), 10.1007/s11240-020-01891-6).
Año de publicación: | 2020
Fuente/Imprenta: | Plant Cell, Tissue and Organ Culture, 2020. DOI: https://doi.org/10.1007/s11240-020-01891-6
DOI: | 10.1007/s11240-020-01891-6
Idioma: | Inglés
Notas: | Article history: Received: 19 May 2020 / Accepted: 15 July 2020.

Contenido:

ABSTRACT.
Both linked and un-linked co-transformation can be used to overcome limitations of methods, such as re-transformation or sexual crossing of transgenic plants, to enable transfer of multiple genes to a single plant. Un-linked co-transformation can also facilitate the production of selectable marker-free transgenic plants. In this study, transgenic white clover plants were generated by Agrobacterium-mediated linked co-transformation using a single T-DNA of 9803 bp expressing: an isopentenyl transferase (IPT) gene for delayed leaf senescence under the control of an organ specific MYB32 promoter from Arabidopsis, a white clover nodule enhanced malate dehydrogenase (neMDH) gene for aluminium tolerance controlled by the endogenous Phosphate Transporter 1 (PT1) promoter, and the coat protein gene from Alfalfa Mosaic Virus (CP-AMV) controlled by the 35S promoter from Cauliflower Mosaic Virus. The selectable marker gene encoding hygromycin phosphotransferase (hph) was borne on a separate T-DNA. Forty independent transgenic events carrying the triple stack were generated, with estimated co-transformation efficiencies of 0.22 to 0.23%. Forty three percent of the events generated had a single insertion, while two events were selectable marker-free. Transcript abundance studies of the three transgenes of interest demonstrated the transcriptional competence of the inserted T-DNA. This study illustrates the feasibility of transferring multiple genes in a large single T-DNA into white clover by Agrobacterium-mediated co-transformation. Furthermore, observations of consistently delayed leaf senescence, statistically significant increases in TrneMDH transcript, and presence of CP-AMV transcript, support further analysis of these events for delayed leaf senescence under drought conditions, aluminium tolerance, and resistance to AMV. 
© 2020, Springer Nature B.V.

Palabras-Clave: | Agrobacterium-mediated transformation; Delayed leaf senescence; Multigene; T-DNA.
Categoría del tema: | F30 Genética vegetal y fitomejoramiento
Registro original: | INIA Treinta y Tres (TT)