Data/hora: 17/06/2024 02:32:21

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 21/05/1998
Data da última atualização: | 21/05/1998
Autoria: | GRATTAPAGLIA, D.; SILVA, C. C. e; NASSAR, N. M. A.
Afiliação: | Universidade de Brasilia.
Título: | Strict maternal inheritance of RAPD fingerprints confirms apomixis in cassava (Manihot esculenta Crantz)
Ano de publicação: | 1996
Fonte/Imprenta: | Candian journal of Plant Science, v.76, p.379-382, 1996.
Idioma: | Inglês
Conteúdo: | Cassava (Manihot esculenta, yuca, mandioca) is propagated vegetatively by stem cuttings. Although clonal prpagation allows retaining both additive and non-additive sources of genetic superiority, it also favors the accumulation of viral and bacterial diseases that can reduce productivity and may lead to the extinction of superior genotypes . Seeds used as initial step in cassava propagation could mitigate this problem by providing a biological filter against sistemic diseases. However, the lack of rapid anduniform seed germination and segregation in the progeny as a result of the outcrossed nature of cassava have precluded this approach. Apomixis may provide a solution to the above problems cassava by fixing heterozygosity responsible for vigor.
Palavras-Chave: | Random amplified polymorphic DNA.
Thesagro: | Manihot Esculenta.
Thesaurus Nal: | apomixis; cassava.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (17069-1) - ADC - SP - -- - S11293 -  - S11293 - DIS