Aug 2026· Plant Systematics and Evolution· Vol 312· 0 citations· 78 references
TL;DR
The results indicate that while the Ormosia plastomes retain the typical angiosperm quadripartite structure, they show a substantial expansion of the inverted repeat (IR) regions compared to the sister lineage of core genistoids (represented by Lupinus and Sophora), with the boundaries extending to the clpP gene.
Phylogenetic reconstruction based on complete plastome sequences strongly supported the monophyly of all seven recognized tribes of Moraceae, recovered the non-monophyly of Streblus, and placed Maclura within Chlorophoreae, consistent with recent nuclear and plastid phylogenomic frameworks.
Hui-Long Li, Wen Deng, Chen-Xuan Yang et al.· BMC Plant Biology· 0 citations
Phylogenetic analyses recovered Veronica as a well-supported monophyletic lineage and clarified the plastid positions of the three newly sequenced species, providing plastome resources and molecular evidence for taxonomy, species identification, and future evolutionary studies of Veronica.
Ying Huang, Shihao Jiang, Yanru Zhang et al.· Frontiers in Plant Science· 0 citations
The genus Myricaria (Tamaricaceae) comprises shrubs widely distributed across arid and high-altitude regions of Eurasia, with China representing an important diversity center, particularly in the Qinghai–Tibetan Plateau and adjacent areas. To investigate plastome evolution and phylogenetic relationships within this genus, we sequenced and comparatively analyzed complete plastomes of five Myricaria species from China, together with those of Reaumuria as an outgroup. All plastomes exhibited a typical quadripartite structure and highly conserved gene composition, containing 127–135 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 Myricaria and resolved major relationships among sampled species. However, limited resolution among some closely related taxa suggests recent diversification and possible incomplete lineage sorting. Overall, Myricaria 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.
Hai-Wen Li, Yiheng Wang, Yanlei Liu et al.· Frontiers in Plant Science· 0 citations
The utility of plastid genome data for resolving deep-level phylogenetic relationships within Hamamelidaceae is highlighted, providing a robust framework for future taxonomic and evolutionary studies of this globally distributed and taxonomically complex family.
Sadaf Habib, Yong Shi, Jie Zhang et al.· Frontiers in Plant Science· 0 citations
This work offers novel insights into genomic diversity and evolutionary history of sampled Zehneria species, providing a critical molecular resource for future taxonomic and phylogenetic studies within Cucurbitaceae.
Michael Gichuru Karendi, Caroline Njambi Ndungu, Elijah Mkala Mbadi et al.· Genetica· 0 citations
The newly assembled Lewinskya plastomes expand genomic resources for Orthotrichaceae and show that chloroplast genome evolution in the sampled species is structurally conservative but contains informative localized variation.
Wei Han, Kai Zhang, Yuanjin Zhao et al.· BMC Plant Biology· 0 citations