PIPages
Labs

Alexander Bucksch

University of Arizona, AZ·Plant Science & Agriculture·Early-career

Why do plants of the same genetic makeup grow roots in so many different shapes, and does that variety matter for crop yield? Roots are hard to study because they are hidden underground.

Fields

Plant Science & Agriculture

Computer Science

Mathematics & Statistics

Topics

root system architecture

root phenotyping

phenotypic spectrum

Grants
1 known grant, through Mar 2027

What they work on

  1. Test whether one bean genotype forms several distinct root architecture types, each with its own plasticity curve across environments, by imaging roots grown under experimental conditions.
  2. Develop whole-root descriptors that capture the 3D spatial layout of an entire root system, combining differential geometry, the math of curves and surfaces, with imaging and simulation techniques.
  3. Build a new statistical analysis that groups roots with similar descriptors into architecture types and compares how these types behave in greenhouse and field experiments.
  4. Combine root descriptors with genomic data to identify genetic elements underlying root shape in bean, and extend the approach to maize.

More about the research

As a result, how the diversity of root architecture, the 3D branching layout of a root system, affects harvests and plant biomass is still not well understood. Better ways to measure root shape could point plant breeders toward new traits to select.

Why it matters

Root shape helps determine how well crops grow, but it is rarely used in breeding because roots are hard to measure. By linking whole-root shape to genes and environments, this work could give breeders of bean and maize new targets for selecting better root systems. The publicly released tools could also help other plant scientists study root variation and speed the movement of results into breeding programs.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

CAREER: The phenotypic spectrum: Quantifying new patterns of architecture variation in crop roots

NSF · Jan 2023 – Mar 2027

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The school

University of Arizona: 36 labs on PI Pages, $1.0B a year on research, 487 research doctorates a year.

More about University of Arizona

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