Molecular Evolution of Floral Genes in Two Costus Species with Divergent Pollination

A 1.1 MB XLS file presents a comparative analysis of floral developmental genes in two closely related spiral gingers, Costus bracteatus (bee-pollinated) and Costus zingiberoides (hummingbird-pollinated). The dataset, authored by Deivid Almeida de Jesus and last updated in March 2026, includes results from phylogenetic inference, positive selection analyses, and in silico protein modeling. It identifies signatures of episodic positive selection in four genes, with AGL6 and CUC-like showing lineage-specific divergence.

Use Cases

• Identify signatures of positive selection in floral developmental genes based on the comparative analysis of two Costus species.
• Model protein structural changes due to mutations in conserved domains like MADS-box and NAC based on in silico modeling results.
• Investigate the genetic architecture of floral diversification in monocots based on the concentration of evolutionarily significant divergence at a limited number of sites.

Strengths

• Dataset is 1.1 MB, indicating a manageable size for download and analysis.
• Analysis is based on newly generated genome assemblies for the two Costus species.
• Licensed under CC-BY-4.0, allowing for flexible reuse and redistribution.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data is specific to two species (Costus bracteatus and C. zingiberoides), limiting broader taxonomic inference.

Provenance

Source

figshare

Collection Method

Generated from genome assemblies, phylogenetic inference, positive selection analyses, and in silico protein modeling.

Time Range

null

Freshness

Last updated 2026-03-17 13:07:27; freshness should be verified.

Geography

Neotropical genus Costus (likely Central/South America).