Project Number: 5341-21220-001-00
Project Type: Appropriated

Start Date: Sep 09, 2002
End Date: Sep 08, 2007

Objective:
There is a need for increased research to evaluate potatoes grown in northern climates, particularly in developing virus-free potato germplasm. Virus-free potatoes will allow potato producers in Alaska and other northern states to increase export trade with Pacific rim countries. An environmentally sound and safe method to reduce loss due to viral disease infection is needed. To remain competitive in Alaska, varieties must be virus-resistant and also retain high yield potential, good appearance, excellent processing qualities (for chip- and frozen-processing as well as fresh market potential), tolerance to handling problems, cold tolerance and pest resistance. To develop new virus-free/resistant varieties of high caliber, integration with ongoing related ARS programs is needed.

Approach:
1) Conduct replicated laboratory and field trials that are designed to evaluate potato germplasm for resistance to viral diseases and adaptability to Alaskan soils and climate. Knowledge acquired from these evaluations will set the foundation for a molecular marker assisted breeding program which will generate new virus-resistant and/or -free potato germplasm. 2) Develop reference families, molecular genetic markers and the elucidation of key genes and sequence information related to resistance to viral infections/diseases. 3) Define genetic mechanisms of determination of qualitative and quantitative traits. The enhancement phase of the research will utilize pedigree, backcrossing, and recurrent selection, as well as molecular approaches to genetic improvement for viral disease resistance. FY02 Program Increase $540,000.

Project Team

Pantoja, Alberto

Project Annual Reports

FY 2003

Related National Programs

Plant, Microbial & Insect Genetic Res., Genomics, & Genetic Improv. I (301)   Plant Diseases (303)