Agrobacterium-mediated genetic transformation of a tropical elite maize line.
Agrobacterium-mediated genetic transformation of a tropical elite maize line.
Author(s): SOUZA, R. A. V. de; ALVES, M. de C.; CARNEIRO, N. P.; BARROS, B. de A.; BOREM, A.; CARNEIRO, A. A.
Summary: ABSTRACT: The efficiency of maize transformation mediated by Agrobacterium tumefaciens is influenced by various factors. The aim of this study was to test the effect of different concentrations of N6 salts (50% ? half strength, and 100% - full strength) in the infection and cocultivation media on genetic transformation efficiency of the L3 tropical elite maize line. Immature embryos were transformed via A. tumefaciens harboring the binary vector pTF102 containing the genes uidA and BAR under control of the CaMV35S promoter. The efficiency of the transgenic events produced was 3% for full strength and 1.1% for half strength N6 salts. Although under a lower concentration of salts, GUS expression was stronger; under this concentration, regeneration was less efficient. Thus, the results showed that the presence of 100% N6 salts in the infection and cocultivation media favored genetic transformation of the L3 maize inbred line mediated by A. tumefaciens.
Publication year: 2017
Types of publication: Journal article
Unit: Embrapa Maize & Sorghum
Keywords: Bactéria, Concentração de sal, Embriogênese, Genética, Transformação genética
Observation
Some of Embrapa's publications are published as ePub files. To read them, use or download one of the following free software options to your computer or mobile device. Android: Google Play Books; IOS: iBooks; Windows and Linux: Calibre.
Access other publications
Access the Agricultural Research Database (BDPA) to consult Embrapa's full library collection and records.
Visit Embrapa Bookstore to purchase books and other publications sold by Embrapa.