Project Number: 1275-21000-176-00
Project Type: Appropriated

Start Date: May 27, 2004
End Date: Oct 31, 2008

Objective:
INCREASE LEVELS OF DISEASE RESISTANCE IN TETRAPLOID AND DIPLOID POTATO GERMPLASM BASES, AND DEVELOP NEW, DISEASE-RESISTANT CULTIVARS. IMPROVE TETRAPLOID AND DIPLOID POTATO GERMPLASM BASES FOR IMPORTANT PROCESSING MARKET QUALITIES AND DEVELOP NEW IMPROVED CULTIVARS FOR PROCESSING. IMPROVE TETRAPLOID AND DIPLOID POTATO GERMPLASM BASES FOR NUTRITIONAL QUALITY, AND DEVELOP NEW CULTIVARS WITH HIGHER LEVELS OF CAROTENOIDS. DEVELOP QUANTITATIVE GENETIC MODELS FOR 4X-2X BREEDING.

Approach:
USE RECURRENT MASS SELECTION TO IMPROVE DIPLOID POPULATIONS FOR DISEASE RESISTANCES, PROCESSING QUALITY, AND CAROTENOID CONTENT. USE PARENTAL LINE BREEDING TO IMPROVE TETRAPLOID POPULATIONS FOR DISEASE RESISTANCES, PROCESSING QUALITY, AND CAROTENOID CONTENT, AND TO GENETICALLY TRANSFER THESE TRAITS FROM IMPROVED DIPLOIDS TO THE TETRAPLOID LEVEL VIA 4X-2X CROSSES. USE COMPUTER SIMULATIONS IN DEVELOPING QUANTITATIVE GENETIC MODELS FOR 4X-2X BREEDING. SCREEN WILD SPECIES ACCESSIONS FOR DISEASE RESISTANT AND INCORPORATE RESISTANCE SELECTIONS INTO THE ESTABLISHED LONG-DAY ADAPTED DIPLOID HYBRID S. PHUREJA - S. STENOTOMUM POPULATIONS.

Project Team

Haynes, Kathleen

Related National Programs

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

Related Projects

PRODUCTION OF FOUNDATION QUALITY SEED OF NEW USDA/ARS POTATO VARIETIES    CHARACTERIZATION OF POTATO CULTIVAR RESPONSE TO POWDERY AND COMMON SCAB    CHARACTERIZATION OF POTATO CULTIVAR REPSONSE TO POWDERY AND COMMON SCAB    CHARACTERIZATION OF POTATO CULTIVAR RESPONSE TO POWDERY AND COMMON SCAB    ENHANCING POTATO GERMPLASM FOR FOLIAR DISEASE RESISTANCE    MOLECULAR GENETIC STUDIES ON RESISTANCE TO VERTICILLIUM WILT    CHARACTERIZATION OF POTATO CULTIVAR RESPONSE TO POWDERY AND COMMON SCAB