Data/hora: 22/06/2024 05:03:31

Biblioteca(s): | Embrapa Café.
Data corrente: | 09/12/2019
Data da última atualização: | 09/12/2019
Autoria: | SILVA, B. S. R. da; SANT'ANA, G. C.; CHAVES, C. L.; ANDROCIOLI, L. G.; FERREIRA, R. V.; SERA, G. H.; CHARMETANT, P.; LEROY, T.; POT, D.; DOMINGUES, D. S.; PEREIRA, L. F. P.
Afiliação: | Bruna Silvestre Rodrigues da Silva, Instituto Agronômico do Paraná - IAPAR; Gustavo César Sant'Ana, Instituto Agronômico do Paraná - IAPAR; Camila Lucas Chaves, Universidade Estadual de Londrina - UEL/Departamento de Agronomia; Leonardo Godoy Androcioli, Instituto Agronômico do Paraná - IAPAR; Rafaelle Vecchia Ferreira, Instituto Agronômico do Paraná - IAPAR; Gustavo Hiroshi Sera, Instituto Agronômico do Paraná - IAPAR; Pierre Charmetant, CIRAD, UMR AGAP; Thierry Leroy, CIRAD, UMR AGAP; David Pot, CIRAD, UMR AGAP; Douglas Silva Domingues, Universidade Estadual Paulista - UNESP/Instituto de Biociências de Rio Claro; LUIZ FILIPE PROTASIO PEREIRA, CNPCa.
Título: | Population structure and genetic relationships between Ethiopian and Brazilian Coffea arabica genotypes revealed by SSR markers.
Ano de publicação: | 2019
Fonte/Imprenta: | Genetica, v. 147, n. 2, p. 205–216, April 2019.
Idioma: | Inglês
Conteúdo: | genotypes is highly relevant to optimize the use of genetic resources for breeding purposes. In this study, we evaluated genetic diversity, clustering analysis based on Jaccard?s coefficient and population structure in 33 genotypes of C. arabica and of three diploid Coffea species (C. canephora, C. eugenioides and C. racemosa) using 30 SSR markers. A total of 206 alleles were identified, with a mean of 6.9 over all loci. The set of SSR markers was able to discriminate all genotypes and revealed that Ethiopian accessions presented higher genetic diversity than commercial varieties. Population structure analysis indicated two genetic groups, one corresponding to Ethiopian accessions and another corresponding predominantly to commercial cultivars. Thirty-four private alleles were detected in the group of accessions collected from West side of Great Rift Valley. We observed a lower average genetic distance of the C. arabica genotypes in relation to C. eugenioides than C. canephora. Interestingly, commercial cultivars were genetically closer to C. eugenioides than C. canephora and C. racemosa. The great allelic richness observed in Ethiopian Arabica coffee, especially in Western group showed that these accessions can be potential source of new alleles to be explored by coffee breeding programs.
Palavras-Chave: | Coffea spp; Cultivated and wild gene pools; Genetic diversity; Population structure and relationships; SSR markers.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/206427/1/Population-Structure-and-Genetic.pdf
Registro original: | Embrapa Café (CNPCa)
Exemplares: | CNPCa - (1350-1) - UPE - AP - DD -  -  -  - DIS