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Isolation effects and soil properties drive genetic differentiation in Ormosia microphylla populations
Yishan Yang1, Jinhan Sang1, Guohua He1
1Guangxi Key Laboratory of Plant Functional Substances and Resources Sustainable Utilization, Guangxi Institute of Botany, Guilin, 541006, China.
Scientific Reports
|July 16, 2025
Summary
Genetic diversity in Ormosia microphylla populations is moderate overall, with unique Karst tiankeng environments influencing lower diversity and distinct genetic structures. Soil properties also correlate with genetic differentiation.
Area of Science:
- Botany and Plant Genetics
- Ecology
- Environmental Science
Background:
- Ormosia microphylla populations exhibit varying genetic diversity.
- Karst tiankeng environments may impose unique selective pressures.
- Soil properties can influence plant genetic structure.
Purpose of the Study:
- To investigate the genetic characteristics of six wild Ormosia microphylla populations.
- To analyze soil properties and their relationship with genetic diversity.
- To propose targeted conservation strategies based on findings.
Main Methods:
- Hyper-seq sequencing technology for genetic analysis.
- Analysis of genetic diversity, structure, differentiation, and phylogeny.
- Soil property analysis including organic content, mineral levels, and pH.
Main Results:
- Moderate overall genetic diversity was observed, with ZD highest and JX lowest.
- The LY population in a Karst tiankeng showed lower genetic diversity and a distinct genetic structure.
- Significant genetic differentiation among populations was found, influenced by Karst tiankeng isolation and soil factors (Fe, K, TK).
Conclusions:
- Karst tiankeng environments and geographical barriers significantly impact Ormosia microphylla genetic differentiation.
- Soil properties, particularly K and TK content, play a crucial role in genetic divergence.
- Conservation strategies should consider the unique genetic profiles and environmental influences on different populations.
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