{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T12:23:47Z","timestamp":1788265427183,"version":"build-2803163510"},"reference-count":59,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100008871","name":"The Key Research and Development Program of Yunnan Province","doi-asserted-by":"publisher","award":["202403AP140045"],"award-info":[{"award-number":["202403AP140045"]}],"id":[{"id":"10.13039\/501100008871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008871","name":"The Key Research and Development Program of Yunnan Province","doi-asserted-by":"publisher","award":["202403AP140026"],"award-info":[{"award-number":["202403AP140026"]}],"id":[{"id":"10.13039\/501100008871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008871","name":"The Key Research and Development Program of Yunnan Province","doi-asserted-by":"publisher","award":["202602AE090038"],"award-info":[{"award-number":["202602AE090038"]}],"id":[{"id":"10.13039\/501100008871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008871","name":"The Basic Research and Development Program of Yunnan Province","doi-asserted-by":"publisher","award":["202501BD070001-019"],"award-info":[{"award-number":["202501BD070001-019"]}],"id":[{"id":"10.13039\/501100008871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008871","name":"The Basic Research and Development Program of Yunnan Province","doi-asserted-by":"publisher","award":["202601AS070115"],"award-info":[{"award-number":["202601AS070115"]}],"id":[{"id":"10.13039\/501100008871","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Central Government-guided Local Science and Technology Development Fund","award":["202407AC110002"],"award-info":[{"award-number":["202407AC110002"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biology"],"abstract":"<jats:p>Anthocyanins are key secondary metabolites responsible for fruit coloration in plants, and their biosynthesis is largely regulated by R2R3-MYB transcription factors. However, the R2R3-MYB regulators controlling fruit anthocyanin accumulation in wild Solanum species remain poorly understood. Here, Solanum americanum was used to identify candidate R2R3-MYB genes associated with fruit coloration through genome-wide identification, phylogenetic analysis, synteny analysis, expression profiling, and virus-induced gene silencing (VIGS). A total of 122 SaMYB genes were identified, and phylogenetic analysis revealed that SaMYB proteins clustered with Arabidopsis thaliana R2R3-MYB members in conserved subgroups, suggesting evolutionary conservation of this family. Synteny analysis identified 37 syntenic gene pairs among SaMYB genes, and the Ka\/Ks values of all analyzable gene pairs were below 1, indicating that these duplicated genes are subject to functional constraint. Integrated analysis of phylogenetic relationships, protein structures, promoter cis-elements, and fruit developmental expression patterns identified SaMYB59 and SaMYB106 as candidate regulators of anthocyanin accumulation. VIGS analysis demonstrated that silencing SaMYB106 reduced purple coloration, decreased anthocyanin content, and downregulated the expression of the structural gene DFR. These results indicate that SaMYB106 functions as a positive regulator of fruit anthocyanin accumulation in S. americanum. This study provides insights into the molecular basis of fruit coloration in wild Solanum species.<\/jats:p>","DOI":"10.3390\/biology15171480","type":"journal-article","created":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T11:33:32Z","timestamp":1788262412000},"page":"1480","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Genome-Wide Identification of the R2R3-MYB Gene Family in Solanum americanum and Functional Analysis of Its Role in Fruit Coloration"],"prefix":"10.3390","volume":"15","author":[{"given":"Yanbo","family":"Yang","sequence":"first","affiliation":[{"name":"College of Landscape and Horticulture, Southwest Forestry University, Kunming 650224, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhiying","family":"Gong","sequence":"additional","affiliation":[{"name":"College of Landscape and Horticulture, Southwest Forestry University, Kunming 650224, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanwen","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Landscape and Horticulture, Southwest Forestry University, Kunming 650224, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hang","family":"Li","sequence":"additional","affiliation":[{"name":"College of Landscape and Horticulture, Southwest Forestry University, Kunming 650224, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiahong","family":"Li","sequence":"additional","affiliation":[{"name":"College of Landscape and Horticulture, Southwest Forestry University, Kunming 650224, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qihang","family":"Cai","sequence":"additional","affiliation":[{"name":"College of Landscape and Horticulture, Southwest Forestry University, Kunming 650224, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zuming","family":"Luo","sequence":"additional","affiliation":[{"name":"College of Landscape and Horticulture, Southwest Forestry University, Kunming 650224, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhenghai","family":"Sun","sequence":"additional","affiliation":[{"name":"College of Landscape and Horticulture, Southwest Forestry University, Kunming 650224, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liping","family":"Li","sequence":"additional","affiliation":[{"name":"College of Ecology and Environment (College of Wetlands), Southwest Forestry University, Kunming 650224, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,9,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1387","DOI":"10.1111\/ele.13753","article-title":"Dispersers and environment drive global variation in fruit colour syndromes","volume":"24","author":"Donoghue","year":"2021","journal-title":"Ecol. 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