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Related Concept Videos

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Related Experiment Video

Updated: Jun 24, 2026

Development of Targeting Induced Local Lesions IN Genomes (TILLING) Populations in Small Grain Crops by Ethyl Methanesulfonate Mutagenesis
08:36

Development of Targeting Induced Local Lesions IN Genomes (TILLING) Populations in Small Grain Crops by Ethyl Methanesulfonate Mutagenesis

Published on: July 16, 2019

Raising yield potential in wheat.

Matthew Reynolds1, M John Foulkes, Gustavo A Slafer

  • 1International Maize and Wheat Improvement Centre (CIMMYT) Int. Apdo. Postal 6-641, 06600 México, DF, Mexico. m.reynolds@cgiar.org

Journal of Experimental Botany
|April 14, 2009
PubMed
Summary
This summary is machine-generated.

Accelerating wheat genetic gains requires integrating crop research with breeding. Enhancing photosynthesis and optimizing spike fertility are key to increasing yield potential and minimizing floret abortion.

Related Experiment Videos

Last Updated: Jun 24, 2026

Development of Targeting Induced Local Lesions IN Genomes (TILLING) Populations in Small Grain Crops by Ethyl Methanesulfonate Mutagenesis
08:36

Development of Targeting Induced Local Lesions IN Genomes (TILLING) Populations in Small Grain Crops by Ethyl Methanesulfonate Mutagenesis

Published on: July 16, 2019

Area of Science:

  • Plant science
  • Agricultural science
  • Genetics

Background:

  • Recent crop research offers opportunities to accelerate genetic gains in wheat.
  • Improving photosynthesis and spike fertility are crucial for increasing yield potential.

Purpose of the Study:

  • To explore strategies for enhancing wheat yield potential through improved photosynthesis and spike fertility.
  • To understand the physiological and genetic factors influencing floret abortion and assimilate partitioning.

Main Methods:

  • Exploiting natural variation in Rubisco's catalytic rate and investigating C4 metabolism for photosynthetic enhancement.
  • Analyzing components of spike fertility, including radiation use efficiency and phenological patterns.
  • Investigating the physiological and genetic basis of floret abortion and signaling pathways.
  • Considering trade-offs in assimilate partitioning to competing sinks, such as root anchorage and stem strength.
  • Utilizing breeding technologies like wide crossing and physiological/molecular breeding.

Main Results:

  • Improving photosynthesis could increase yield potential by 50% or more.
  • Underutilized photosynthetic capacity during grain filling suggests unnecessary floret abortion.
  • Optimizing phenology and minimizing floret abortion can improve assimilate partitioning for better source:sink balance.
  • Trade-offs in resource allocation are necessary to prevent lodging-related yield losses.

Conclusions:

  • Integrating advanced crop research with breeding strategies is essential for maximizing wheat yield potential.
  • Targeting photosynthesis, spike fertility, and floret abortion offers significant opportunities for genetic improvement.
  • Advanced breeding technologies can complement conventional methods to efficiently develop elite wheat progeny.