Data/hora: 12/06/2024 16:21:53

Provedor de dados: 	Genetics and Molecular Biology	
País: 	Brazil	
Título: 	Restoring pollen fertility in transgenic male-sterile eggplant by Cre/loxp-mediated site-specific recombination system	
Autores: 	Cao,Bihao; Huang,Zhiyin; Chen,Guoju; Lei,Jianjun.	
Data: 	2010-01-01	
Ano: 	2010	
Palavras-chave: 	Eggplant; Male sterility; Barnase gene; Cre gene; Cre/loxP system.	
Resumo: 	This study was designed to control plant fertility by cell lethal gene Barnase expressing at specific developmental stage and in specific tissue of male organ under the control of Cre/loxP system, for heterosis breeding, producing hybrid seed of eggplant. The Barnase-coding region was flanked by loxP recognition sites for Cre-recombinase. The eggplant inbred/pure line ('E-38') was transformed with Cre gene and the inbred/pure line ('E-8') was transformed with the Barnase gene situated between loxp. The experiments were done separately, by means of Agrobacterium co-culture. Four T0-plants with the Barnase gene were obtained, all proved to be male-sterile and incapable of producing viable pollen. Flowers stamens were shorter, but the vegetative phenotype was similar to wild-type. Five T0-plants with the Cre gene developed well, blossomed out and set fruit normally. The crossing of male-sterile Barnase-plants with Cre expression transgenic eggplants resulted in site-specific excision with the male-sterile plants producing normal fruits. With the Barnase was excised, pollen fertility was fully restored in the hybrids. The phenotype of these restored plants was the same as that of the wild-type. Thus, the Barnase and Cre genes were capable of stable inheritance and expression in progenies of transgenic plants.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200017	
Editor: 	Sociedade Brasileira de Genética	
Relação: 	10.1590/S1415-47572010005000043	
Formato: 	text/html	
Fonte: 	Genetics and Molecular Biology  v.33 n.2 2010	
Fonte: 	info:eu-repo/semantics/openAccess