Data/hora: 07/06/2024 14:29:55

Biblioteca(s): | Embrapa Clima Temperado.
Data corrente: | 16/10/2023
Data da última atualização: | 16/10/2023
Autoria: | SOUZA, R. S. de; MARTINS, C. R.; CASTRO, C. M.; PINHEIRO, N. L.; MELLO-FARIAS, P. C. de.
Afiliação: | RAFAELA SCHMIDT DE SOUZA; CARLOS ROBERTO MARTINS, CPACT; CAROLINE MARQUES CASTRO, CPACT; NATERCIA LOBATO PINHEIRO LIMA, CPACT; PAULO CELSO DE MELLO-FARIAS, UNIVERSIDADE FEDERAL DE PELOTAS.
Título: | Genetic variability in pecan genotypes in Brazil.
Ano de publicação: | 2023
Fonte/Imprenta: | Revista Ceres, Viçosa, v. 70, n. 5, e70504, Aug./Sep 2023.
DOI: | 10.1590/0034-737X202370050004
Idioma: | Inglês
Conteúdo: | Pecan crops has been expanding in recent years, mainly in southern Brazil. Genotypes that compose Brazilian orchards come from the USA and from selections of plants made by Brazilian producers. This study aimed to characterize with microsatellite markers pecan cultivars registered for cultivation in Brazil, including some selections made in the country. It is important to know the genetic variability of the pecan tree, as it facilitates the identification of possible phytotechnical deficiencies due to the genetic similarity between the plants, in addition to helping in the conservation of the species, among other. Thirty-four, out of forty collected accessions, were genotyped with 11 selected SSR (Simple Sequence Repeats) loci. Twenty-four polymorphic alleles were identified. The genetic similarity matrix, based on the Jaccard coefficient, ranged from 0.125 to 1.0; general mean of similarity was 0.46. The cluster analysis, which was carried out by the Unweighted Pair Group Method with Arithmetic Mean (UPGMA), classified pecan accessions into four main groups. Results showed that there is high genetic variability in germplasm evaluated, although some accessions may be duplicates.
Thesagro: | Noz; Noz Peca.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1157269/1/Artigo-2023-genetic-pecan.pdf
Registro original: | Embrapa Clima Temperado (CPACT)
Exemplares: | CPACT - (22674-1) - UPC - AP - DD -  -  -  - DIS