{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T20:49:24Z","timestamp":1770065364158,"version":"3.49.0"},"reference-count":49,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2026,1,31]],"date-time":"2026-01-31T00:00:00Z","timestamp":1769817600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["32172519"],"award-info":[{"award-number":["32172519"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National Technology System for Grape Industry","award":["CARS-29-zp-9"],"award-info":[{"award-number":["CARS-29-zp-9"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Genes"],"abstract":"<jats:p>Objectives: The aroma profile is a key determinant of fruit quality. Methods: In this study, mature \u2018Summer Black\u2019 grape berries were collected from 36 major producing areas in southern China to evaluate regional differences in fruit quality, volatile compounds were analyzed by via GC-MS, and a representative volatile profile was established. Furthermore, transcriptome sequencing was employed to identify key genes involved in the phenylpropanoid biosynthesis pathway related to aroma formation. Results: The results showed the following: (1) Samples from CD-2 exhibited the highest soluble solid content and the largest TSS\/TA ratio. (2) A total of 20 volatile compounds were selected as indicators for the aroma fingerprint. MS-1 samples contained the most diverse aroma compounds (19 types), while CS-2 had the fewest (12 types). (3) Eight aroma compounds were consistently detected across all regions: hexanal, trans-2-hexenal, n-hexanol, \u03b2-citronellol, geraniol, nerol, benzyl alcohol, and phenethyl alcohol. Among these, hexanal and trans-2-hexenal were the most abundant; phenylethyl alcohol exhibited the most significant variation in percentage content across all samples, and was determined to be the representative and dominant volatile compound in \u2018Summer Black\u2019 grapes. (4) A transcriptome analysis of six representative regions identified 15 differentially expressed genes associated with phenylpropanoid biosynthesis and metabolism. Among them, PAO (Vitvi04g01467) was significantly correlated with phenethyl alcohol content. Conclusions: These findings provide a basis for evaluating the aroma quality of \u2018Summer Black\u2019 grapes and offer insights for regional cultivation selection.<\/jats:p>","DOI":"10.3390\/genes17020172","type":"journal-article","created":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T09:48:08Z","timestamp":1770025688000},"page":"172","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Variation in Fruit Quality and Aroma Biosynthesis of \u2018Summer Black\u2019 Grape in Southern China"],"prefix":"10.3390","volume":"17","author":[{"given":"Rong","family":"Wang","sequence":"first","affiliation":[{"name":"College of Horticulture, Hunan Agricultural University, Changsha 410128, China"},{"name":"Bijie Academy of Agricultural Sciences, Bijie 551700, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Meng","family":"Yan","sequence":"additional","affiliation":[{"name":"College of Horticulture, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wenting","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Horticulture, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shumin","family":"Lei","sequence":"additional","affiliation":[{"name":"Jiujiang Agricultural Technology Extension Center, Jiujiang 332000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun","family":"Tan","sequence":"additional","affiliation":[{"name":"College of Horticulture, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-8063-8230","authenticated-orcid":false,"given":"Yanshuai","family":"Xu","sequence":"additional","affiliation":[{"name":"College of Horticulture, Hunan Agricultural University, Changsha 410128, China"},{"name":"Agricultural Genomics lnstitute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guoshun","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Horticulture, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,1,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Grassi, F., and Arroyo-Garcia, R. 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