Potato functional genomics for improvement of tuber production

The goal of this research program is to identify the genetic factors that affect potato production. Canada is the second largest exporter of processed potatoes in the world. Derived from a narrow genetic base, potatoes are the world's most stress-susceptible and chemically-dependent crop. Losses, due to poor quality, count for billions of dollars annually. Due to potato defects, processing industries use more chemical additives to maintain product quality. Because of the complexity of the potato genome and limited genetic resources, research around the world has been less advanced than for any other major food crop. Recent developments in potato genomic resources have renewed opportunities for researchers to identify genetic factors and their interactions with the environment, essential for potato performance. This research program will focus on key issues pertaining to tuber quality, disease control and nutrition values. The applicant has established a fully equipped molecular biology and genomics laboratory, the only one in Atlantic Canadian universities, focusing on diversified potato research programs. The program has trained large number of HQPs. Recently global potato production has increased, mostly in developing countries. According to experts, food shortages will become a major problem for countries with large populations within the next 20 years. Asian countries including China are currently trying to grow potatoes in areas where the season alternates with rice planting. They look for short growing season cultivars with a high production potential adaptable to warm weather and short days. Seed potato produced in Canada is highly recognized around the world for its quality and low disease contamination. However, most of the North American cultivars have a long maturation period, long dormancy and favour cool nights and long days. In the long-term, this research program will focus on studying genetic mechanisms and responses to environment to find the most suitable cultivars for particular climates. The outcome of this study will provide necessary knowledge pertaining to the national strategy for the development of new cultivars.