Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Rubus and vacciniaceous germplasm resources in the Andes of Ecuador.

Abstract

In Andean Ecuador the genus Rubus includes species in subgenera Rubus and Orobatus, R. glaucus (an indigenous cultivated amphidiploid) and at least 2 feral species in subgenus Idaeobatus. A germplasm collecting expedition undertaken during October and November 1990 collected 22 seed samples of 4 known and 2 unidentified species in subgenus Rubus, 18 of 5 known and 1 unidentified species in subgenus Orobatus, 4 of R. glaucus and 1 of R. niveus. Collecting sites were mainly along side roads leading from the Pan-American Highway, from Tulcan near the Colombian border to Loja in southern Ecuador. It was suggested that R. roseus (subgenus Orobatus), R. adenothallus and R. robustus (both subgenus Rubus), and R. glaucus all had the potential to make positive contributions to the cultivated Rubus gene pool for improved fruit quality. The tribe Vaccinieae is represented by species of about 20 genera in Andean Ecuador and, during the expedition, 43 clonal and seed samples were collected covering 28 known species, representing 8 genera. The species of Cavendishia, Ceratostema, Macleania and Psammisia collected are suggested to have immediate potential as new floricultural crops. Vaccinium floribundum was identified as an attractive ornamental and potential source of genes for frost resistance during flowering. All germplasm collected was shared equally between the USA (mainly USDA-ARS National Clonal Germplasm Repository, Corvalis, Oregon) and the Department of Plant Genetic Resources, INIAP, Quito, Equador.