The multichromosomal structure evolution of Dendrobium mitogenomes and new insights into interrelationships of recently radiated tribes in Epidendroideae (Orchidaceae)
Mengting Wang, Jiawei Jiang, Hongdou Liang, Lijia Lei, Yalu Chen, Yinshuai Li, Yunyan Hua, Tao Ma, Wona Ding, Xu Li, Zhitao Niu · 2026
Read The multichromosomal structure evolution of Dendrobium mitogenomes and new insights into interrelationships of recently radiated tribes in Epidendroideae (Orchidaceae) by Mengting Wang, Jiawei Jiang, Hongdou Liang, Lijia Lei, Yalu Chen, Yinshuai Li, Yunyan Hua, Tao Ma, Wona Ding, Xu Li, Zhitao Niu (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13279703.txt.
Description
Mengting Wang and colleagues published a 2026 genomics study of orchid mitochondrial genomes and ties among recently diverged tribes of the subfamily Epidendroideae. The subfamily holds over 20,000 species, but ties among some young tribes stay disputed because flower shapes converge misleadingly. The team assembled the complete mitochondrial genome of the orchid Dendrobium chrysanthum from two sequencing technologies. They compared nine orchid mitogenomes and built family trees from mitochondrial and chloroplast genomes for ten species.
The Dendrobium mitogenome stretched to 638,041 DNA letters split across multiple chromosomes, a multichromosomal layout rather than the single circle once assumed for plants. Genome size and structure varied greatly across the orchids compared, while sequence similarity tracked known relatedness. Most branches agreed between the two trees, though some placements conflicted. The authors offer the new genomes as fresh evidence for sorting out the young tribes and as a resource for orchid evolution research.
Catalog record
| CREATOR | Mengting Wang, Jiawei Jiang, Hongdou Liang, Lijia Lei, Yalu Chen, Yinshuai Li, Yunyan Hua, Tao Ma, Wona Ding, Xu Li, Zhitao Niu |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 37 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |