Data/hora: 09/06/2024 13:30:22

Provedor de dados: | 86
País: | Brazil
Título: | Isoenzymatic variability in wild potatoes
Autores: | Rocha,Beatriz Helena Gomes; Augustin,Eliane; Silva,João Baptista da; Viégas,Judith.
Data: | 2001-05-01
Ano: | 2001
Palavras-chave: | Peroxidases; Aminotransferases; Isomerases; Isocitrate dehydrogenase; Genetic variation.
Resumo: | Two species of wild potato Solanum commersonii, subspecies commersonii and malmeanum, and S. chacoense, subspecies muelleri occur in southern Brazil. Their rusticity and easy adaptation to extreme climatic conditions make them valuable for breeding programs. The objective of this work was to analyze the isoenzymatic variability of 113 clones of wild potato subspecies. They were collected and maintained at Embrapa-Centro de Pesquisa Agropecuária de Clima Temperado, at Pelotas, RS, Brazil. Enzymes involved in energetic (group I) or in peripherical (group II) metabolism constituted the material used. Polyacrylamide horizontal gel electrophoresis was used to analyze peroxidase, aspartate transaminase, phosphoglucomutase and isocitrate dehydrogenase isoenzymes. Solanum spp. has considerable genetic variability for isoenzymatic patterns. Cluster analysis classified the clones into 51 subgroups, based on electrophoretic variants of group I enzymes, and into 89, when group II enzyme variants were added. Genotypic differentiation of S. chacoense muelleri in relation to S. commersonii commersonii and S. commersonii malmeanum is evident when expressed through similarity and cluster analysis.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001000500008

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/S0100-204X2001000500008
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.36 n.5 2001
Fonte: | info:eu-repo/semantics/openAccess