Gene Duplication Impacts on Legume Root Nodule Symbiosis Evolution

A 79.7 KB PDF study by Hyun-oh Lee, last updated May 12, 2026, investigates the role of gene duplications in the evolution of root nodule symbiosis in legumes. The research focuses on gene superfamilies with independent whole genome duplications occurring after the gamma paleohexaploidy event (~120 million years ago) and prior to the evolution of symbiotic nodules. It identifies several gene families essential for symbiosis that show evidence of critical roles from both ancient and recent duplications.

Use Cases

• Analyzing evolutionary histories of gene families based on the study of whole genome duplications.
• Investigating the molecular mechanisms of organ evolution based on the focus on root nodule symbiosis.
• Studying gene neo- or sub-functionalization based on the described roles of duplication events in acquiring new functions.

Strengths

• The study is shared under a permissive CC-BY-4.0 license, allowing for broad reuse.
• The description provides specific evolutionary timeframes, such as the gamma event ~120 million years ago.
• The research focuses on a specific, unresolved puzzle in plant evolution regarding the timing of symbiotic trait emergence.

Limitations

• The dataset is a single 79.7 KB PDF document, representing a very limited data scope.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for computational analysis.

Provenance

Source

figshare, author Hyun-oh Lee

Collection Method

Likely contains research analysis and findings compiled into a document.

Time Range

Study focuses on evolutionary events spanning tens to hundreds of millions of years.

Freshness

Last updated 2026-05-12 05:44:06; freshness should be verified.