ArticleBMC genomics2024
Characterization of Firmiana danxiaensis plastomes and comparative analysis of Firmiana: insight into its phylogeny and evolution.
Article in BMC genomics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed.
- From Ethnobotany to Pharmacognosy: A Review ofPlants (Basel, Switzerland) · 2026Review
- The Complete Chloroplast Genome ofGenes · 2025Article
- Complete Chloroplast Genome ofEcology and evolution · 2025Article
- Comprehensive analysis of 385 chloroplast genomes unveils phylogenetic relationships and evolutionary history in cassava.BMC plant biology · 2025Article
- Article
- Comprehensive characterization and phylogenetic analysis of the complete plastomes of two ant-orchids, Caularthron bicornutum and Myrmecophila thomsoniana.BMC plant biology · 2024Article
- Complete Chloroplast Genome ofGenes · 2024Article
- Characterizing the microbiome recruited by the endangered plantFrontiers in microbiology · 2024Article
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8 authors.
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Abstract
backgroundFirmiana danxiaensis is a critically endangered and ecologically important tree currently only found in four locations in Danxia or Karst habitats in northern Guangdong Province, China. The specialized habitat preference makes it an ideal model species for study of adaptive evolution. Meanwhile, the phylogenetic relationships of F. danxiaensis in four locations under two landforms are unclear. Therefore, we sequenced its complete chloroplast (cp.) genomes and conducted comprehensive interspecific and intrageneric plastome studies.
resultsThe F. danxiaensis plastomes in four locations showed a typical quadripartite and circular structure that ranged from 160,832 to 161,206 bp in size, with 112 unique genes encoded. Comparative genomics showed that the plastomes of F. danxiaensis were relatively conserved with high similarity of genome organization, gene number, GC content and SSRs. While the genomes revealed higher biased codon preferences in Karst habitat than those in Danxia habitats. Eighteen and 11 divergent hotpots were identified at interspecific and intrageneric levels for species identification and further phylogenetic studies. Seven genes (clpP, accD, ccsA, ndhH, rpl20, rpoC2, and rps4) were under positive selection and may be related to adaptation. Phylogenetic analysis revealed that F. danxiaensis is sister to F. major and F. simplex. However, the interspecific relationships are not consistent with the habitat types.
conclusionsThe characteristics and interspecific relationship of F. danxiaensis plastomes provide new insights into further integration of geographical factors, environmental factors, and genetic variations on the genomic study of F. danxiaensis. Together, our study will contribute to the study of species identification, population genetics, and conservation biology of F. danxiaensis.
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