Identification of sources of male sterility in the Colombian Coffee Collection for the genetic improvement of Coffea arabica L.

ABSTRACT: In coffee (Coffea arabica L.), male sterility is a prerequisite for the exploitation of heterosis since it provides an efficient and reliable method for the production of hybrid seeds. Given its relevance, the objective of this study was to identify male-sterile genotypes within the Colombian Coffee Collection that can be used in genetic improvement. For this purpose, Ethiopian germplasm and progenies derived from hybrids between C. arabica x C. canephora were explored between 2017 and 2021. In the first stage, genotypes without visual presence of pollen were preselected in the field, followed by selection through staining and verification of male sterility and female fertility through directed crosses (directed, reciprocal and selfing). In this stage, 9,753 trees were explored, preselecti

SUBMITTER: Suarez JCA 

PROVIDER: S-EPMC10490922 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature