Screening for Chip-Processing Potato Line from Introgression of Wild Species’ Germplasms with Post-Harvest Storage and Chip Qualities

• Published in: American journal of potato research 2013-09, Vol.90 (5), p.425-439
• Main Authors: Zhao, Qingxia, Zhao, Baoxie, Zhang, Qingquan, Yu, Bin, Cheng, Lixiang, Jin, Rong, Wang, Yuping, Zhang, Junlian, Wang, Di, Zhang, Feng
• Format: Article
• Language: English
• Subjects: Agriculture; Agronomy. Soil science and plant productions; Amino acids; Biological and medical sciences; Biomedical and Life Sciences; Breeding methods; Correlation analysis; Correlation coefficient; Cultivars; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; Generalities. Genetics. Plant material; Genetic resources, diversity; Genetics and breeding of economic plants; Harvesting. Postharvest. Storage; Hybridization; Interspecific and intergeneric hybridization, introgressions; Life Sciences; Low temperature; Plant Breeding/Biotechnology; Plant breeding: fundamental aspects and methodology; Plant Genetics and Genomics; Plant material; Plant Pathology; Plant Sciences; Potatoes; Sugar; Vegetables; Vegetative propagation. Sowing and planting. Harvesting
• ISSN: 1099-209X; 1874-9380
• DOI: 10.1007/s12230-013-9316-1

The processing of potatoes into chips is expanding in China. There is a need for new processing cultivars that are well-suited for the local ecological environment. Eleven potato varieties were bred from hybridization and backcrossing between the local cultivated potato varieties ( Solanum tuberosum L.) and wild potato species. Lines from different wild species’ germplasms showed that the ability to accumulate reducing sugars was significantly different during low temperature storage (4 °C). A correlation analysis was conducted to determine the correlation coefficient among reducing sugars, acid invertase, free amino acids, chip colors and the content of acrylamide after storage at room and low temperatures. The lines 0706-116, 0737-6 and 0726-205 had low levels of reducing sugars, acrylamide content and acceptable chip colors for potato chip processing. The results indicated that the transfer of wild species’ processing traits into local cultivars by hybridization and continuous backcrossing is an effective potato breeding method and that the wild germplasm resources S. phureja and S. chacoense are suitable for improving the processing traits of local varieties.