Auxin independent1 (Axi1) as an endogenous gene for copy number determination in transgenic tobacco.

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dc.contributorSimara da Silva Lopes, Universidade Federal de São João del-Rei; Jéssica Fabiane da Veiga Costa, Centro Universitário de Sete Lagoas; BEATRIZ DE ALMEIDA BARROS, CNPMS; ANDREA ALMEIDA CARNEIRO, CNPMS; SYLVIA MORAIS DE SOUSA TINOCO, CNPMS.
dc.creatorLOPES, S. da S.
dc.creatorCOSTA, J. F. da V.
dc.creatorBARROS, B. de A.
dc.creatorCARNEIRO, A. A.
dc.creatorSOUSA, S. M. de
dc.date2020-06-13T04:02:01Z
dc.date2020-06-13T04:02:01Z
dc.date2020-06-12
dc.date2020
dc.date.accessioned2026-07-07T05:24:11Z
dc.descriptionDetermining the copy number is important because it can greatly influence the expression level and genetic stability of transgenes. This study aimed to establish a methodology that can estimate the transgene copy number in tobacco (Nicotiana tabacum) using the Auxin independent1 (Axi1) gene as an endogenous control. Tobacco c.v. Petit Havana plants were transformed via Agrobacterium tumefaciens with a pMCG1005 vector that contained Bar as a selective gene. Oligonucleotide efficiency was determined and a qPCR using the 2-ΔCt and 2-ΔΔCt methods was performed. Bar was the target gene and Axi1 was the endogenous control in five transgenic tobacco events. The results showed that the Axi1 gene was donated by the maternal parent N. sylvestris when interspecific hybridization occurred between N. sylvestris and N. tomentosiformis. The copy number results agreed with the segregation ratios for the Bar gene in T1 plants, which confirmed that Axi1 is a single copy gene that can be used as an endogenous control.
dc.identifierCrop Breeding and Applied Biotechnology, v. 20, n. 2, e289220212, 2020.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1123250
dc.identifierhttp://dx.doi.org/10.1590/1984- 70332020v20n2a28
dc.identifier.urihttp://hdl.handle.net/123456789/489957
dc.languageeng
dc.rightsopenAccess
dc.subjectCópia transgênica
dc.subjectTabaco
dc.subjectControle endógeno
dc.subjectPlanta Transgênica
dc.subjectGene
dc.subjectNicotiana Tabacum
dc.titleAuxin independent1 (Axi1) as an endogenous gene for copy number determination in transgenic tobacco.
dc.typeArtigo de periódico

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