Oca (Oxalis tuberosa)
The name is derived from the Quechua words ok’a, occa and/or uqa. Tubers are mainly claviform and cylinder in shape and tuber color ranges from white to deep grayish purple. Oca yields up to 20-40 tons per ha and tubers are ready for harvesting 7 months after planting. Oca is also grown in Mexico and New Zealand where oca has become a popular table vegetable and is simply called yam or New Zealand yam. Oca is a good source of carbohydrate, antioxidant compounds (anthocyanin and flavonoids), potassium and oxalates.
0Cryopreserved potato shoot tips showed genotype-specific response to sucrose concentration in rewarming solution (RS)
Cryopreservation protocols have been successfully developed for hundreds of species and thousands of genotypes in laboratories around the world. In many of the protocols, the rewarming process occurs in a rewarming solution (RS) with a high concentration of sucrose (0.8–1.2 M).
0A taxonomic monograph of Ipomoea integrated across phylogenetic scales
Taxonomic monographs have the potential to make a unique contribution to the understanding of global biodiversity. However, such studies, now rare, are often considered too daunting to undertake within a realistic time frame, especially as the world’s collections have doubled in size in recent times.
0Structural genome analysis in cultivated potato taxa
The common potato (Solanum tuberosum L.) is an important staple crop with a highly heterozygous and complex tetraploid genome. The other taxa of cultivated potato contain varying ploidy levels (2X–5X), and structural variations are common in the genomes of these species, likely contributing to the diversification or agronomic traits during domestication
0Conserving Biodiversity for the Future
Food production will be hard pressed to keep up with demand in the next 30 years.
The world’s population is expected to swell by some two billion by midcentury,
chiefly in developing countries already struggling to feed their people.
- Genetic diversity of the Andean tuber-bearing species, oca (Oxalis tuberosa Mol.), investigated by inter-simple sequence repeats (2006)
- Congruence between morphological and molecular markers inferred from the analysis of the intra-morphotype genetic diversity and the spatial structure of Oxalis tuberosa Mol (2007)
ARTCs accessions conserved in the CIP-genebank and progress in identity verification of the collections.
Current and traditional uses of ARTCs.