{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T05:47:43Z","timestamp":1785822463301,"version":"3.56.0"},"reference-count":38,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T00:00:00Z","timestamp":1785801600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Plant Sci."],"abstract":"<jats:p>\n                    The genus\n                    <jats:italic>Myricaria<\/jats:italic>\n                    (Tamaricaceae) comprises shrubs widely distributed across arid and high-altitude regions of Eurasia, with China representing an important diversity center, particularly in the Qinghai\u2013Tibetan Plateau and adjacent areas. To investigate plastome evolution and phylogenetic relationships within this genus, we sequenced and comparatively analyzed complete plastomes of five\n                    <jats:italic>Myricaria<\/jats:italic>\n                    species from China, together with those of\n                    <jats:italic>Reaumuria<\/jats:italic>\n                    as an outgroup. All plastomes exhibited a typical quadripartite structure and highly conserved gene composition, containing 127\u2013135 genes, indicating strong structural stability across the genus. Despite the overall conservation of plastome architecture, minor size differences were observed and were mainly associated with contraction and expansion of inverted repeat (IR) boundaries. Comparative analyses revealed heterogeneous patterns of sequence divergence, with nucleotide variation primarily concentrated in intergenic regions and a limited number of protein-coding genes, whereas IR regions showed relatively high conservation. Simple sequence repeats (SSRs) and long repeats displayed species-specific distribution patterns, contributing to localized plastome variation. Sliding window analysis identified several mutation hotspots mainly located in single-copy regions, suggesting their potential utility for species identification and phylogenetic studies. Phylogenomic analyses based on complete plastome sequences strongly supported the monophyly of\n                    <jats:italic>Myricaria<\/jats:italic>\n                    and resolved major relationships among sampled species. However, limited resolution among some closely related taxa suggests recent diversification and possible incomplete lineage sorting. Overall,\n                    <jats:italic>Myricaria<\/jats:italic>\n                    plastomes show a pattern of highly conserved genome structure coupled with localized sequence divergence, providing valuable resources for phylogenetic resolution, species identification, and plastome evolutionary studies.\n                  <\/jats:p>","DOI":"10.3389\/fpls.2026.1926827","type":"journal-article","created":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T05:39:33Z","timestamp":1785821973000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Comparative plastome analysis and phylogenetic relationships of Chinese Myricaria species (Tamaricaceae)"],"prefix":"10.3389","volume":"17","author":[{"given":"Haiwen","family":"Li","sequence":"first","affiliation":[{"name":"College of Life Sciences and Technology, Tarim University","place":["Alar, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yiheng","family":"Wang","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, Academy of Chinese Medical Sciences","place":["Beijing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanlei","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Landscape and Ecological Engineering, Hebei University of Engineering","place":["Handan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuo","family":"Shi","sequence":"additional","affiliation":[{"name":"College of Life Science, Hebei Normal University","place":["Shijiazhuang, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,8,4]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"3030","DOI":"10.1093\/bioinformatics\/bty220","article-title":"IRscope: an online program to visualize the junction sites of chloroplast genomes","volume":"34","author":"Amiryousefi","year":"2018","journal-title":"Bioinformatics"},{"key":"B2","doi-asserted-by":"publisher","DOI":"10.1007\/s11103-024-01440-1","article-title":"Variations and reduction of plastome are associated with the evolution of parasitism in Convolvulaceae","volume":"114","author":"Chen","year":"2024","journal-title":"Plant Mol. 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