Skip to main content
ARS Home » Midwest Area » Madison, Wisconsin » Vegetable Crops Research » Research » Publications at this Location » Publication #316167
Title: Fine screening for resistance to cold-induced sweetening in potato hybrids containing Solanum raphanifolium germplasm

Author
item ALI, AFRAN - University Of The Punjab
item Jansky, Shelley

Submitted to: Advances in Agriculture
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 6/9/2015
Publication Date: 6/24/2015
Publication URL: https://handle.nal.usda.gov/10113/61030
Citation: Ali, A., Jansky, S. 2015. Fine screening for resistance to cold-induced sweetening in potato hybrids containing Solanum raphanifolium germplasm. Advances in Agriculture. Available: http://www.hindawi.com/journals/aag/2015/327969/.

Interpretive Summary: Wild potato relatives are good sources of genes for processing traits, such as storage quality and light chip color. In this study, we evaluated five wild species plants from the same family for their ability to produce hybrid offspring with good chip quality. Some plants were much better parents than others. Consequently, it is important to identify individual plants in wild species population when choosing parents for breeding programs.

Technical Abstract: Potato is an indispensable part of human food. Many wild and cultivated potato relatives have been screened to find the best potato germplasm to improve productivity and quality, but only a small sample of the available biodiversity has been exploited. Most wild relatives are self-incompatible diploids. Genetic variability exists within and among populations even within a species. Therefore, it is necessary to carry out fine screening to identify individuals carrying traits of interest. This study was carried out to quantify phenotypic variability for resistance to cold-induced sweetening, an important processing trait. After 4 months of storage at 4C, storage incubation, five families were evaluated for potato chip (crisp) color. The families were generated by crossing a single diploid clone to five plants from one accession of the wild potato relative Solanum raphanifolium. Analysis of variance revealed that resistance against cold induced sweetening was dependent on family and trial. This study underscores the importance of fine screening to select individuals in potato accessions for use in potato improvement.