{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T18:11:38Z","timestamp":1790187098390,"version":"4.1.0"},"reference-count":73,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2024,6,12]],"date-time":"2024-06-12T00:00:00Z","timestamp":1718150400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100011501","name":"Science and Technology Department of Qinghai Province","doi-asserted-by":"publisher","award":["2021-ZJ-729"],"award-info":[{"award-number":["2021-ZJ-729"]}],"id":[{"id":"10.13039\/501100011501","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100011501","name":"Science and Technology Department of Qinghai Province","doi-asserted-by":"publisher","award":["2023-NK-P38"],"award-info":[{"award-number":["2023-NK-P38"]}],"id":[{"id":"10.13039\/501100011501","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100011501","name":"Science and Technology Department of Qinghai Province","doi-asserted-by":"publisher","award":["2021-ZJ-729"],"award-info":[{"award-number":["2021-ZJ-729"]}],"id":[{"id":"10.13039\/501100011501","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100011501","name":"Science and Technology Department of Qinghai Province","doi-asserted-by":"publisher","award":["2023-NK-P38"],"award-info":[{"award-number":["2023-NK-P38"]}],"id":[{"id":"10.13039\/501100011501","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Plants"],"abstract":"<jats:p>Phlomoides rotata is a traditional Chinese herbal medicine that grows in the Qinghai\u2013Tibet Plateau region at a 3100\u20135000 m altitude. Iridoid compounds are the main active compounds of the P. rotata used as medical ingredients and display anti-inflammatory, analgesic, and hepatoprotective properties. To better understand the biological mechanisms of iridoid compounds in this species, we performed a comprehensive analysis of the transcriptome and metabolome of P. rotata leaves from four different regions (3540\u20134270 m). Global metabolome profiling detected 575 metabolites, and 455 differentially accumulated metabolites (DAMs) were detected in P. rotata leaves from the four regions. Eight major DAMs related to iridoid metabolism in P. rotata leaves were investigated: shanzhiside methyl ester, 8-epideoxyloganic acid, barlerin, shanzhiside, geniposide, agnuside, feretoside, and catalpin. In addition, five soil physical and chemical indicators in P. rotata rhizosphere soils were analyzed. Four significant positive correlations were observed between alkaline nitrogen and geniposide, exchangeable calcium and geniposide, available potassium and shanzhiside, and available phosphorus and shanzhiside methyl ester. The transcriptome data showed 12 P. rotata cDNA libraries with 74.46 Gb of clean data, which formed 29,833 unigenes. Moreover, 78.91% of the unigenes were annotated using the eight public databases. Forty-one candidate genes representing 23 enzymes involved in the biosynthesis of iridoid compounds were identified in P. rotata leaves. Moreover, the DXS1, IDI1, 8-HGO1, and G10H2 genes associated with iridoid biosynthesis were specifically expressed in P. rotata. The integration of transcriptome and metabolome analyses highlights the crucial role of soil physical and chemical indicators and major gene expression related to iridoid metabolism pathways in P. rotata from different areas. Our findings provide a theoretical foundation for exploring the molecular mechanisms underlying iridoid compound accumulation in P. rotata.<\/jats:p>","DOI":"10.3390\/plants13121627","type":"journal-article","created":{"date-parts":[[2024,6,13]],"date-time":"2024-06-13T04:30:12Z","timestamp":1718253012000},"page":"1627","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["A Transcriptomic and Metabolomic Study on the Biosynthesis of Iridoids in Phlomoides rotata from the Qinghai\u2013Tibet Plateau"],"prefix":"10.3390","volume":"13","author":[{"given":"Luhao","family":"Wang","sequence":"first","affiliation":[{"name":"Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, School of Life Sciences, Qinghai Normal University, Xining 810008, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guigong","family":"Geng","sequence":"additional","affiliation":[{"name":"Academy of Agricultural and Forestry Sciences, Qinghai University, Xining 810016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huichun","family":"Xie","sequence":"additional","affiliation":[{"name":"Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, School of Life Sciences, Qinghai Normal University, Xining 810008, China"},{"name":"Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining 810008, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lianyu","family":"Zhou","sequence":"additional","affiliation":[{"name":"Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, School of Life Sciences, Qinghai Normal University, Xining 810008, China"},{"name":"Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining 810008, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yujiao","family":"He","sequence":"additional","affiliation":[{"name":"Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, School of Life Sciences, Qinghai Normal University, Xining 810008, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zuxia","family":"Li","sequence":"additional","affiliation":[{"name":"Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, School of Life Sciences, Qinghai Normal University, Xining 810008, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feng","family":"Qiao","sequence":"additional","affiliation":[{"name":"Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, School of Life Sciences, Qinghai Normal University, Xining 810008, China"},{"name":"Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining 810008, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Wang, C., Gong, X., Bo, A., Zhang, L., Zhang, M., Zang, E., Zhang, C., and Li, M. 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