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- Title
Germplasm characterization of half‐sib families from seminal matricies of Coffea canephora.
- Authors
Zaidan, Iasmine Ramos; Ferreira, Marcia Flores da Silva; Noia, Luina Ribeiro; de Arruda, Valderson Cabral; Pereira do Couto, Diego; Moro, Gabriel Lenen Javarini; Silva, Matheus Alves; Santos, Jônatas Gomes; Braz, Ramon Azevedo; Azevedo, Camila Ferreira; Ferreira, Adésio
- Abstract
The genetic diversity of Coffea canephora Pierre ex A. Froehner present in old seminal crops must be characterized because it represents a source of genetic variability for breeding programs. In this study, the genetic diversity of 388 half‐sib families of C. canephora, collected from Espírito Santo, Brazil, were assessed for their phenotypic traits. The data were obtained in a trial planted in April 2018 with five commercial clones as controls. Vegetative development was evaluated based on plant height, stem diameter, and average height and diameter growth rates. Abiotic (drought) and biotic (rust, leaf miner, and mealybug) stresses were evaluated by a rating scale. The phenotypic variability of the population was detected for all traits, and divergent clusters of families were identified. Negative correlations indicated that adverse conditions hampered the early development of the coffee plants. Groups of families should be investigated for breeding programs according to adequate development even under stressful conditions. These results show the importance of preserving the germplasm of old crops in the south of Espírito Santo as a source of genetic resources for coffee breeding programs. This valuable resource should be maintained and conserved as a strategy to guarantee the sustainability of coffee production. Core Ideas: This is a groundbreaking study of half‐sib families from old seminal crops.Old seminal matrices are valuable sources of Coffea canephora genetic resources.The characterization, study, and preservation of old seminal matricies are fundamental for breeding of coffee.Divergent families were identified with adequate initial vegetative development.
- Subjects
ESPIRITO Santo (Brazil : State); BRAZIL; COFFEE; GERMPLASM; GENETIC variation; PHENOTYPIC plasticity; LEAFMINERS; SUSTAINABILITY; GENETIC markers in plants
- Publication
Agronomy Journal, 2023, Vol 115, Issue 1, p108
- ISSN
0002-1962
- Publication type
Article
- DOI
10.1002/agj2.21224