Data/hora: 19/06/2024 05:15:18

Biblioteca(s): | Embrapa Amazônia Oriental.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 02/06/2016
Data da última atualização: | 25/05/2022
Autoria: | CUNHA, E. F. M.; SILVA, C. R. de S.; ALBUQUERQUE, P. S. B. de; RAMALHO, G. F.; PONTES, L. C. G.; FARIAS NETO, J. T. de.
Afiliação: | ELISA FERREIRA MOURA CUNHA, CPATU; Carlos Rogério de Sousa Silva, Comissão Executiva do Plano da Lavoura Cacaueira; Paulo Sérgio Bevilaqua de Albuquerque, Comissão Executiva do Plano da Lavoura Cacaueira; Girena Fernandes Ramalho, UFPA; Lígia Cristine Gonçalves Pontes, UFPA; JOAO TOME DE FARIAS NETO, CPATU.
Título: | Molecular characterization of 'sweet' cassavas (Manihot esculenta) from a germplasm bank in Brazilian Eastern Amazonia.
Ano de publicação: | 2016
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, v. 16, n. 1, p. 28-34, 2016.
DOI: | http://dx.doi.org/10.1590/1984-70332016v16n1a5
Idioma: | Inglês
Conteúdo: | Genetic variability of a set of 81 accessions of ?sweet? cassavas (Manihot esculenta) collected mostly in the North region of Brazil was investigated with nine microsatellite loci. All loci were polymorphic, with mean of 6.33 alleles per locus. Analyses indicated that 35 multiloci profiles were represented by a single accession, and 46 showed non-unique profiles, represented by eleven genotypes. Forty-six different multiloci profiles were detected. Most of the putative duplicated accessions were collected in different locations. After the removal of putative duplicated genotypes, genetic parameters were estimated and expected heterozygosity was high (HE=0.73), indicating genetic variability. Structure analysis of this set of ?sweet? cassavas divided the 46 genotypes into two clusters (K=2), and a few genotypes had mixed ancestry. Results indicated the habit of exchange of materials among farmers of the North region of Brazil, and the genetic variability to be exploited in genetic breeding efforts
Palavras-Chave: | Macaxeira; Recursos genéticos.
Thesagro: | Banco de Germoplasma; Mandioca; Manihot Esculenta.
Thesaurus Nal: | cassava; genetic resources.
Categoria do assunto: | G Melhoramento Genético
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/143760/1/artigo-macaxeiras-2016.pdf
Registro original: | Embrapa Amazônia Oriental (CPATU)
Exemplares: | CPATU - (52234-1) - UPC - AP - DD -  -  -  - DIS