Polygoneae Tribe Plastome Phylogeny with 175 Accessions and Ancestral Area Reconstruction

A 2026 study by Dong-Ling Cao presents a plastome phylogeny for the plant tribe Polygoneae, based on 175 accessions representing 163 species across 21 genera. Molecular dating indicates a major diversification burst in East Asia during the late Oligocene (28–20 Ma) and a rapid radiation during the Miocene-Pliocene transition (8–3 Ma). The dataset includes results from phylogenetic analysis, ancestral area reconstruction, and ecological niche modeling.

Use Cases

• Reconstructing phylogenetic relationships within the Polygoneae tribe based on plastome sequence data.
• Analyzing spatiotemporal diversification patterns linked to Cenozoic geological and climatic events.
• Modeling ancestral biogeographic areas and dispersal corridors across the Northern Hemisphere.
• Investigating climatic niche shifts and trait evolution, such as the independent origins of woodiness.

Strengths

• Phylogenetic analysis is based on a sample of 175 accessions representing 163 species.
• Molecular dating provides specific time ranges for diversification events (e.g., 28–20 Ma, 8–3 Ma).
• Analysis integrates multiple methods: phylogenomics, ancestral area reconstruction, and ecological niche modeling.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is very small (23.9 KB), suggesting it contains summary results rather than raw sequence data.

Provenance

Source

Dong-Ling Cao via figshare

Collection Method

Plastome phylogenomics analysis of plant samples.

Time Range

Evolutionary history, with dated diversification events from the late Oligocene to Pliocene.

Freshness

Last updated 2026-03-18 06:58:27

Geography

Global, with a focus on East Asia, the North Temperate Zone, and specific corridors like Southwest China-Central Asia.