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Updated: Dec 29, 2025
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Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry
Published on: October 2, 2016
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Genet assignment and population structure analysis in a clonal forest-floor herb, Cardamine leucantha, using RAD-seq
Michiaki Tsujimoto1, Kiwako S Araki1,2, Mie N Honjo1
1Center for Ecological Research, Kyoto University, Hirano Otsu, Japan.
Aob PLANTS
|February 1, 2020
Summary
This study used RAD-seq to analyze the genetic structure of Cardamine leucantha, successfully distinguishing individual genetic clones (genets) within a natural population. The findings provide a robust method for understanding clonal plant population genetics.
Area of Science:
- Population Genetics
- Plant Genomics
Background:
- Clonal plant populations present challenges in genetic structure analysis due to relatedness between neighboring individuals.
- Accurate assignment of ramets to genets requires robust genetic distance thresholds.
Purpose of the Study:
- To determine the genetic structure of a natural population of the clonal herb Cardamine leucantha.
- To develop and apply a reliable method for distinguishing genets using restriction site-associated DNA sequencing (RAD-seq).
Main Methods:
- Generated a draft genome sequence for Cardamine leucantha.
- Employed RAD-seq to obtain genetic markers for population analysis.
- Collected 372 samples from a natural population in Hokkaido, Japan.
Main Results:
- Identified 61 distinct genets within the studied population, revealing significant variation in genet size and patchy distribution.
- Demonstrated successful discrimination of genets, even from half-sib families, using RAD-seq derived genetic distances.
- Spatial autocorrelation analysis showed aggregation patterns at both ramet (7m) and genet (4m) levels.
Conclusions:
- RAD-seq provides a robust method for accurate genet assignment in clonal plants.
- The study successfully characterized the genetic structure of a Cardamine leucantha population.
- Further research is needed to understand the dominance mechanisms of large genets.
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