Abstract:

In order to enrich the germplasm resources of color potato breeding in Fujian Province, 14 color potato varieties were used as the test materials. Firstly, the yield and nutritional quality performance of the varieties were analyzed, and then SSR molecular markers were used for genetic diversity analysis. The results showed that among all varieties, the anthocyanin content of 'Hei Meiren' was the highest at 41.83 mg/kg, while the protein content, yield and commercial potato rate of 'Fucaishu No.2' were the highest, which were 2.34 mg/g, 31,030.75 kg/hm² and 89.54% respectively. The highest Vc content of 'Jiu En Hong' was 26.27 mg/kg, and the highest dry matter content of 'Minshu No.11' was 23.91%. The genetic distances of the 14 varieties ranged from 0.162 to 0.603, with an average of 0.425. Among them, varieties such as 'Fucaishu No.2', 'Ziyun No. 1', and 'Huasong 66' have performed well comprehensively in Fujian Province. They can provide parent materials for the selection and breeding of new varieties in Fujian Province, and at the same time offer references for theoretical research on potato breeding in Fujian Province.

Key words: color potato, SSR marker, genetic diversity, yield, nutritional quality, anthocyanin, protein, commercial potato rate