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Genes 2015, 6(4), 1300-1314;

Exploring Folate Diversity in Wild and Primitive Potatoes for Modern Crop Improvement

Hermiston Agricultural Research and Extension Center, Oregon State University, Hermiston, OR 97838, USA
Department of Crop and Soil Science, Oregon State University, Corvallis, OR 97330, USA
USDA/Agricultural Research Service, Sturgeon Bay, WI 54235, USA
Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97330, USA
Author to whom correspondence should be addressed.
Academic Editors: Sean Mayes, Festo Massawe, Prakit Somta and Wai Kuan Ho
Received: 27 October 2015 / Revised: 11 November 2015 / Accepted: 25 November 2015 / Published: 8 December 2015
(This article belongs to the Special Issue Genetic Diversity for Crop Improvement)
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Malnutrition is one of the world’s largest health concerns. Folate (also known as vitamin B9) is essential in the human diet, and without adequate folate intake, several serious health concerns, such as congenital birth defects and an increased risk of stroke and heart disease, can occur. Most people’s folate intake remains sub-optimal, even in countries that have a folic acid food fortification program in place. Staple crops, such as potatoes, represent an appropriate organism for biofortification through traditional breeding based on their worldwide consumption and the fact that modern cultivars only contain about 6% of the daily recommended intake of folate. To start breeding potatoes with enhanced folate content, high folate potato material must be identified. In this study, 250 individual plants from 77 accessions and 10 Solanum species were screened for their folate content using a tri-enzyme extraction and microbial assay. There was a 10-fold range of folate concentrations among individuals. Certain individuals within the species Solanum tuberosum subsp. andigenum, Solanum vernei and Solanum boliviense have the potential to produce more than double the folate concentrations of commercial cultivars, such as Russet Burbank. Our results show that tapping into the genetic diversity of potato is a promising approach to increase the folate content of this important crop. View Full-Text
Keywords: vitamin B9; folate; biofortification; potato; Solanum tuberosum; andigenum; vernei vitamin B9; folate; biofortification; potato; Solanum tuberosum; andigenum; vernei

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Robinson, B.R.; Sathuvalli, V.; Bamberg, J.; Goyer, A. Exploring Folate Diversity in Wild and Primitive Potatoes for Modern Crop Improvement. Genes 2015, 6, 1300-1314.

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