Data/hora: 25/06/2024 19:19:14

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 11/08/1999
Data da última atualização: | 11/08/1999
Autoria: | PIGNONE, D.; GALASSO, I.; HAMMER, K.; PERRINO, P.
Afiliação: | C.N.R. Instituto del Germoplasma, Bari, Italy; Institut fur Pflanzengenetik und Kulturpflanzenforschung.
Título: | Cytogenetic and genetic relationships between populations of Aegilops ventricosa Tausch
Ano de publicação: | 1994
Fonte/Imprenta: | Euphytica, v.79, p.81-85, 1994
Idioma: | Inglês
Conteúdo: | Five samples of Aegilops ventricosa (2n=4x=28, genome formula DDNN) from different geographical origins, were crossed in a diallelic scheme. Metaphase I chromosome pairing of the hybrids, accounting for all the possible genetic combinations, was analysed. Only bivalents were formed in some hybrids, while multivalents were scored in other ones. Seed storage proteins, gliadins and albumins, were also analysed by means of polyacrylamide gel electrophoresis. Based on the presence of multivalents in hybrids, and on the differences in seed protein profiles, the samples could be grouped into two clusters. Meiosis was regular in hybrids obtained within samples of the same group, while multivalents were present in hybrids involving a sample of one group and one of the other. The evolutionary trends in Ae. ventricosa are discussed.
Palavras-Chave: | Chromosomal polymorphism; Seed proteins; Wild wheats.
Thesaurus Nal: | Aegilops ventricosa; cytogenetics; evolution.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (17267-1) - ADD - SP - -- - S11442 -  - S11442 - DIS