Data/hora: 24/06/2024 01:14:36

Biblioteca(s): 	Embrapa Mandioca e Fruticultura.	
Data corrente: 	10/05/2000	
Data da última atualização: 	10/05/2000	
Autoria: 	NASSAR, H. N.; NASSAR, N. M. A.; VIEIRA, C.; SARAIVA, L. S.	
Afiliação: 	Universidade de Brasilia; Universidade de Vicosa.	
Título: 	Interspecific hybrid of Cassava and its cytogenetic behaviour	
Ano de publicação: 	1994	
Fonte/Imprenta: 	Turrialba, v.44, n.1, p.18-23, San Jose, Costa Rica, 1994	
ISSN: 	0041-4360	
Idioma: 	Inglês	
Conteúdo: 	An interspecifie hybrid between cassava, Manihot esculenta Crantz and M. neusenta nassar and its progeny were examined meiotically and mitotically. The F1 hybrid showed an irregular meiosis due to unpaired chromosomes. The backcrossed progeny varied from partially fertile to sterile. Meiotic restitution was also recorded all of the hybrids. Diploidpollen formation was also observed. The irregular meiosis of the F1 hybrid led to production of aneuploidy in its backcrossed progeny. The use of F1 hybrid as a material plant in backcrosses with cassava improved seed seting in F2 progeny, while the reciprocal backcross produced sterile progeny.	
Palavras-Chave: 	Aneuploid; dyad; Irregular meiosis; meiotic restitution; tryad; Wild species.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Mandioca e Fruticultura (CNPMF)	
Exemplares: 	CNPMF - (5075-1) - ADD - AP - -- - 630.05 -  - 630.05 - DIS