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Anais da Escola Superior de Agricultura Luiz de Queiroz

Print version ISSN 0071-1276On-line version ISSN 2316-8935

An. Esc. Super. Agric. Luiz de Queiroz vol.48  Piracicaba  1991

http://dx.doi.org/10.1590/S0071-12761991000100003 

BIOQUÍMICA BIOCHEMISTRY

 

Caracterização preliminar de Amaranthus hybridus L. e Amaranthus viridis L. através de isoenzimas

 

Preliminary characterization of Amaranthus hybridus L. and Amaranthus viridis L. through isozymes

 

 

Angela Maria MalufI; Paulo Sodero MartinsII

IInstituto de Botânica, Caixa Postal, 4005, São Paulo-SP - CEP 01015
IIDepartamento de Genética, ESALQ/USP, Caixa Postal, 83 - PIRACICABA - SP - CEP 13400

 

 


RESUMO

Através da técnica de eletroforese de gel de amido com migração horizontal, pode-se observar que para esterase, apenas o Amaranthus hybridus tipo verde apresentou variação, na forma de presença ou ausência da banda na posição 0.7. Por outro lado, para peroxidase, para todas as espécies e biótipos (A.viridis e A.hybridus tipo verde e tipo roxo) houve variação no padrão de bandas. Através da existência de bandas comuns às duas espécies, pode-se detectar evidências de hibridação e introgressãc entre elas.

Termos para Indexação: eletroforese, isoenzima, esterase, peroxidase, Amaranthus, hibridação, introgressão


ABSTRACT

Through starch gel electrophoresis with horizontal migration, Amaranthus hybridus green biotype was the only accession to show variation in esterase patterns, with presence or absence of a band in position 0.7. On the other hand, all species and biotypes (A.viridisand A.hybridus green and purple biotypes) showed variation in banding patterns for peroxidase. Through the existence of common bands to both species, one could detect evidence for hybridization and introgression between them.

Index Terms: electrophoresis, isozyme, esterase, peroxidase, Amaranthus, hybridization, introgression.


 

 

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

 

 

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Trabalho entregue para publicação em 06.11.89
Trabalho aprovado para publicação em 25.02.91

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