Gene Duplication Impacts on Legume Root Nodule Symbiosis Evolution

A 33.3 KB Excel file by Hyun-oh Lee, last updated May 12, 2026, analyzes gene superfamilies related to root nodule symbiosis. The study focuses on the roles of ancient whole-genome duplications and more recent local duplications in the evolution of this symbiotic trait within the nitrogen-fixing nodulation clade.

Use Cases

• Identify gene families essential for root nodule symbiosis based on duplication history analysis.
• Study the functional impact of whole-genome duplications, such as the gamma paleohexaploidy event ~120 million years ago, on trait evolution.
• Analyze the evolutionary timeline between ancient duplication events and the emergence of symbiotic nodules in the Late Cretaceous.
• Investigate patterns of neo- or sub-functionalization in duplicated genes within legume lineages.

Strengths

• Data is shared under a permissive CC-BY-4.0 license, allowing for broad reuse.
• The description provides specific biological context, including references to the gamma paleohexaploidy event ~120 million years ago and the Late Cretaceous emergence of the trait.

Limitations

• Row count and column-level documentation are unknown, which may limit suitability assessment.
• The dataset is small at 33.3 KB, indicating a limited scope of analysis.

Provenance

Source

figshare, author Hyun-oh Lee

Collection Method

Likely contains results from comparative genomic analysis of gene superfamilies.

Freshness

Last updated 2026-05-12 05:44:01; freshness should be verified.