Polygoneae Tribe Plastome Phylogenomics with 175 Accessions

Dong-Ling Cao published a dataset on 2026-03-18 containing phylogenetic and evolutionary data for the plant tribe Polygoneae. The dataset includes 175 accessions representing 163 species across 21 genera of Polygonaceae. It was used to reconstruct evolutionary relationships and model diversification patterns linked to Cenozoic climatic changes.

Use Cases

• Phylogenetic tree reconstruction based on plastome sequence data from 175 accessions.
• Molecular dating analysis to estimate divergence times, such as the late Oligocene radiation (28–20 Ma).
• Ancestral area reconstruction to trace biogeographic dispersal corridors like the Southwest China-Central Asia corridor.
• Ecological niche modeling to investigate climatic niche shifts driving lineage diversification.
• Trait evolution analysis to study the independent origins of woodiness in arid-adapted genera.

Strengths

• Sampling includes 175 accessions representing 163 species across 21 genera.
• Phylogenetic analyses yielded a well-supported topology resolving previously contentious relationships.
• Data supports molecular dating, ancestral area reconstruction, and ecological niche modeling as described.

Limitations

• Dataset is a 16.4 KB DOCX file, suggesting limited raw data or a summary table.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Dong-Ling Cao via figshare.

Collection Method

Plastome phylogenomics from 175 accessions, with phylogenetic analysis, molecular dating, and ecological niche modeling.

Time Range

Evolutionary study focusing on diversification from the late Oligocene to the Pliocene.

Freshness

Last updated 2026-03-18 06:58:35.

Geography

Focus on East Asian origin and Northern Hemisphere dispersal, with specific hotspots in southwestern China and Xinjiang.