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The Boechera model system for evolutionary ecology.

Catherine A Rushworth1, Maggie R Wagner2, Thomas Mitchell-Olds3

  • 1Department of Biology, Utah State University, Logan, UT, 84322, USA.

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|November 13, 2022
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Summary
This summary is machine-generated.

The Boechera genus, a close relative of Arabidopsis, is a valuable ecological model for studying plant adaptation. Research highlights its role in understanding apomixis, genetic variation, and responses to climate change in native habitats.

Keywords:
BoecheraBrassicaceaeapomixisclimate changeecologyglucosinolatelocal adaptationselection

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Area of Science:

  • Eco-evolutionary biology
  • Plant genetics
  • Ecological genomics

Background:

  • Boechera, a relative of Arabidopsis, is an emerging ecological model system.
  • It is widely distributed in western North America, offering insights into natural populations.
  • The genus is crucial for studying ecologically important traits like apomixis (asexual reproduction via seeds).

Approach:

  • Utilizes genome-wide association studies (GWAS) to identify ecologically important genes.
  • Investigates natural selection in native plant habitats.
  • Integrates molecular, functional, and eco-evolutionary approaches.

Key Points:

  • Apomixis is common in Boechera, with environmental factors shaping the evolution of sexual reproduction.
  • Balancing selection maintains genetic variation, influencing traits like herbivore resistance and drought tolerance.
  • Host genotype impacts microbiome composition, affecting plant traits and natural selection.

Conclusions:

  • Boechera serves as a powerful system for studying biological responses to global change.
  • Climate change has demonstrably altered flowering phenology and natural selection patterns in Boechera stricta.
  • Future research directions include further exploration of eco-evolutionary dynamics and adaptation.