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http://biblioteca.incaper.es.gov.br/digital/handle/item/5321| Título: | Genomic discrimination of the botanical groups conilon and robusta of Coffea canephora. |
| Autor(es): | OLIVEIRA, R. G. de  ALMEIDA, F. A. N. de ZAIDAN, I. R. SENRA, J. F. de B. SILVA, M. A. da FERREIRA, A. FERREIRA, M. F. da S. Rosana Gomes de Oliveira, UFES; Francine Alves Nogueira de Almeida, UFES; Iasmine Ramos Zaidan, UFES; João Felipe de Brites Senra, Incaper; Matheus Alves da Silva, UFES; Adésio Ferreira, UFES; Marcia Flores da Silva Ferreira, UFES. |
| Data do documento: | 3-Fev-2026 |
| Editor: | Scientific Report, 2026. |
| Descrição: | The correct identification of Coffea canephora genotypes into the botanical groups Conilon, Robusta and their hybrids is fundamental for breeding strategies aimed at developing and selecting commercial clones; however, genotype discrimination is challenging when based only on morphological attributes. A total of 121 individuals were evaluated from the Incaper Active Germplasm Bank (BAG): 52 Conilon, 33 Robusta, and 36 hybrids (morphological intermediates showing traits of both groups). DArTseq SNPs were filtered, and 1,551 markers were used in the analyses. Cluster analyses revealed three genetic groups: one Robusta (G1) and two Conilon (G2 and G3). AMOVA indicated that 78.49% of the variation occurred among groups and 21.51% within groups. Differentiation was greatest between G1 and G3 (Fst = 0.77), followed by G1 and G2 (Fst = 0.46), whereas G2 and G3 showed lower differentiation (Fst = 0.31). G2 showed high genetic diversity and greater genotypic variability, with three SNP-defined genotypes, suggesting the presence of genetic hybrids. Ten SNPs, located on nine chromosomes and outside genic regions, were validated to discriminate the botanical groups, providing a molecular fingerprinting tool for the characterization of C. canephora germplasm in Brazil. |
| URI: | https://www.nature.com/articles/s41598-026-35855-1 http://biblioteca.incaper.es.gov.br/digital/handle/item/5321 |
| Aparece nas coleções: | Memória Técnica do Incaper |
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| Arquivo | Tamanho | Formato | |
|---|---|---|---|
| s41598-026-35855-1-reference.pdf | 7,58 MB | Adobe PDF | Visualizar/Abrir |
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