Data/hora: 10/06/2024 08:19:08

Provedor de dados: 	65	
País: 	Brazil	
Título: 	Gene stacking as a strategy to confer characteristics of agronomic importance in plants by genetic engineering	
Autores: 	Ceccon,Cássia Canzi; Caverzan,Andréia; Margis,Rogerio; Salvadori,José Roberto; Grando,Magali Ferrari.	
Data: 	2020-01-01	
Ano: 	2020	
Palavras-chave: 	Co-transformation; Re-transformation; Sexual crossing; Transgene; Minichromosomes.	
Resumo: 	ABSTRACT: Gene stacking refers to the introduction of two or more transgenes of agronomic interest in the same plant. The main methods for genetically engineering plants with gene stacking involve (i) the simultaneous introduction, by the co-transformation process, and (ii) the sequential introduction of genes using the re-transformation processes or the sexual crossing between separate transgenic events. In general, the choice of the best method varies according to the species of interest and the availability of genetic constructions and preexisting transgenic events. We also present here the use of minichromosome technology as a potential future gene stacking technology. The purpose of this review was to discuss aspects related to the methodology for gene stacking and trait stacking (a gene stacking strategy to combine characteristics of agronomical importance) by genetic engineering. In addition, we presented a list of crops and genes approved commercially that have been used in stacking strategies for combined characteristics and a discussion about the regulatory standards. An increased number of approved and released gene stacking events reached the market in the last decade. Initially, the most common combined characteristics were herbicide tolerance and insect resistance in soybean and maize. Recently, commercially available varieties were released combining these traits with drought tolerance in these commodities. New traits combinations are reaching the farmer’s fields, including higher quality, disease resistant and nutritional value improved. In other words, gene stacking is growing as a strategy to contribute to food safety and sustainability.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000600401	
Editor: 	Universidade Federal de Santa Maria	
Relação: 	10.1590/0103-8478cr20190207	
Formato: 	text/html	
Fonte: 	Ciência Rural  v.50 n.6 2020	
Fonte: 	info:eu-repo/semantics/openAccess