Abstract:The aroma profiles of core grape germplasm resources in the Turpan region were evaluated to provide reliable data for the improvement of the breeding efficiency of different aromatic grape varieties. In this study, the terpenoid profiles and the genetic loci controlling these components were analyzed in 27 grape varieties. The fruit aromatic phenotypes were analyzed and compared among the different varieties to identify aromatic types most suitable for breeding. These varieties were classified based on four flavors, namely, strawberry, no aroma, rose, and mixed aroma. Twenty-six terpenoids were detected in these varieties. While these terpenoids were found in all aromatic categories, there were significant differences in the compounds and concentrations between the different categories. The rose-flavored varieties showed higher terpenoid concentrations than the varieties with strawberry or no aroma. The significant differences were also observed among the different rose-flavored varieties.The content of nericanol, citronel and rose ether was higher than the average content of the other three fragrant varieties. The main terpenoids identified in the rose-flavored varieties were linalol, geraniol, nerolol, citronellol. At the major terpene regulatory genetic loci, three genotypes including the dominant homozygous T/T, heterozygous G/T, and recessive G/G were detected in the 27 grape varieties. Sunshine Rose and Zaokangbao were T/T; coreless white, Red Earth, Jufeng, white banana, coreless white heart, and SP1153 were G/G; other varieties were G/T. The findings suggested that Sunshine Rose and Zaokangbao were ideal breeding materials for the rose aroma. Zaoshou Musk, fragrant Concubine, noble Concubine rose, Italy, oasis gem, and seedless Cuibao varieties had strong or relatively strong rose aroma and carried the heterozygous G/T genotype, and these varieties could be used for breeding via by self-crossing or cross-breeding.