Data/hora: 17/06/2024 07:45:30

Biblioteca(s): 	Embrapa Mandioca e Fruticultura.	
Data corrente: 	16/09/1999	
Data da última atualização: 	16/09/1999	
Autoria: 	NASSAR, N. M. A.; VIEIRA, M. A.; VIEIRA, C.; GRATTAPAGLIA, D.	
Afiliação: 	Departamento de Agronomia, Universidade de Brasilia; Departamento de Fitotecnia, Universidade de vicosa; Lab. de Genetica de Plantas - CENARGEN-EMBRAPA-Brasilia.	
Título: 	A molecular and embryonic study of apomixis in cassava (manihot esculenta Crantz)	
Ano de publicação: 	1998	
Fonte/Imprenta: 	Euphytica, v.102, p.9-13, 1998	
Idioma: 	Inglês	
Conteúdo: 	In cassava, apomixis fixes heterosis and avoids transmission of systemic pathogens which complicate vegetative propagation of the crop. A combination of evidence from maternal inheritance of RAPD markers and the structure of the embryonic sac in large progeny sets of two distinct genotypes have further confirmed the occurrence of apomixis in cassava. We could advance further on earlier reports of the detection of apomixis in four ways: (1) we could arrive at an estimate of the rate of facultative apomixis in the range of 2%; (2) we detected the occurrence of apomixis in a second genotype, derived from a different interspecific cross; (3) apomictic behavior was demonstrated in an F1 individual and (4) parallel embryonic evidence was generated that corroborate the potential occurrence of apomixis by apospory.	
Palavras-Chave: 	Interspecific hybrid; RAPD.	
Thesaurus Nal: 	embryo sac.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Mandioca e Fruticultura (CNPMF)	
Exemplares: 	CNPMF - (17328-1) - ADD - SP - -- - S11503 -  - S11503 - DIS