title: Genetic diversity of thiamin and folate in primitive cultivated and wild potato (Solanum) species.
abstract: Biofortification of staple crops like potato via breeding is an attractive strategy to reduce human micronutrient deficiencies. A prerequisite is metabolic phenotyping of genetically diverse material which can potentially be used as parents in breeding programs. Thus, the natural genetic diversity of thiamin and folate contents was investigated in indigenous cultivated potatoes (Solanum tuberosum group Andigenum) and wild potato species (Solanum section Petota). Significant differences were found among clones and species. For about 50% of the clones there were variations in thiamin and folate contents between years. Genotypes which contained over 2-fold the thiamin and 4-fold the folate content compared to the modern variety Russet Burbank were identified and should be useful material to integrate in breeding programs which aim to enhance the nutritional value of potato. Primitive cultivars and wild species with widely different amounts of thiamin and folate will also be valuable tools to explore their respective metabolic regulation.
authors.affiliation: Department of Botany and Plant Pathology, Hermiston Agricultural Research and Extension Center, Oregon State University, Hermiston, Oregon 97838, United States. aymeric.goyer@oregonstate.edu
authors.forename: Aymeric
authors.initials: A
authors.lastname: Goyer
authors.forename: Kortney
authors.initials: K
authors.lastname: Sweek
mesh_terms: D001947:Breeding; D005492:Folic Acid / Q000032:analysis* / Q000235:genetics; D014644:Genetic Variation; D005838:Genotype; D009753:Nutritive Value; D035281:Plant Tubers / Q000737:chemistry; D032322:Solanum / Q000737:chemistry* / Q000235:genetics*; D013045:Species Specificity; D013831:Thiamine / Q000032:analysis* / Q000235:genetics
chemical_list: D005492:Folic Acid; D013831:Thiamine