Abstract

ESPINOSA B., NATALIA; LIGARRETO M., GUSTAVO ADOLFO; BARRERO M., LUZ STELLA  and  MEDINA C., CLARA INÉS. Morphological variability of wild blackberry (Rubus sp.) cultivars in the Andes of Colombia. rev.colomb.cienc.hortic. [online]. 2016, vol.10, n.2, pp.211-221. ISSN 2011-2173.  https://doi.org/10.17584/rcch.2016v10i2.4755.

ABSTRACT The present work studied the genus Rubus collection of Colombia; it consists of 31 entries of native and cultivated accessions mostly from different blackberry producer regions. In order to estimate genetic variability 38 quantitative and qualitative descriptors were used in morphologic description. At the morphological level, it was found that groups of accessions match with the conventional taxonomic determination species from the genus Rubus. RG37 accession was established as an intermediate material at the morphological level between species R. glaucus and some wild Rubus material. Morphological characterization also recognized phenotypic variability in Rubus materials and identified clusters within R. glaucus showing some accessions with higher closeness of vegetative characteristics from wild accessions. Additionally, it identified others which are better suited in commercial production, as well as some interactions of the region of origin in the phenotypic behavior of R. glaucus entries.

Keywords : genetic resources; phenotypic descriptors; genetic diversity; phenotype.

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