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Updated: Aug 14, 2025
10:31
Isolation and Analysis of Microbial Communities in Soil, Rhizosphere, and Roots in Perennial Grass Experiments
Published on: July 24, 2018
55.0K
Quantitative genetic-by-soil microbiome interactions in a perennial grass affect functional traits
Albina Khasanova1,2, Joseph Edwards1, Jason Bonnette1
1Department of Integrative Biology, The University of Texas at Austin, 2415 Speedway #C0930, Austin, TX 78712, USA.
Proceedings. Biological Sciences
|January 18, 2023
Summary
Plant microbiomes influence local adaptation and trait evolution. Soil microbes modify plant genetic architecture, revealing crucial genotype-by-microbiome interactions for adaptation in grasses.
Area of Science:
- Plant biology
- Ecology
- Genetics
Background:
- Plant microbiomes significantly impact plant growth and performance.
- Microbes can facilitate local adaptation in host plants through genotype-by-microbiome interactions.
- Ecotypic divergence in plants is influenced by interactions with local soil microbes.
Purpose of the Study:
- To investigate the role of soil microbiomes in quantitative genetic responses of plant traits.
- To explore plant genotype-by-microbiome interactions in ecotypic divergence.
- To understand how soil microbiomes affect the genetic architecture of traits in *Panicum hallii*.
Main Methods:
- Utilized a recombinant inbred line (RIL) mapping population of *Panicum hallii* from upland and lowland ecotypes.
- Focused on functional root and shoot traits associated with ecotypic divergence.
- Analyzed quantitative genetic responses to different soil microbiomes.
Main Results:
- Plant ecotype growth, development, and trait divergence are dependent on soil microbiomes.
- Soil microbiomes alter the genetic architecture of quantitative traits, indicating significant plant genotype-by-microbiome interactions.
- Several quantitative trait loci (QTL) were identified that interact with the soil microbiome.
Conclusions:
- Microbial interactions are critical for ecotypic divergence in C4 perennial grasses.
- Soil microbiomes play a key role in shaping the genetic architecture of plant traits.
- Understanding plant-microbiome interactions is essential for studying plant adaptation and evolution.
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