Revisiting growth-defence trade-offs and breeding strategies in crops.

Plant Biotechnol J

CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.

Published: May 2024

AI Article Synopsis

  • Plants have developed a complex immune system to combat pathogens, but activating this immune response can hinder their growth and development.
  • In agriculture, the focus on increasing crop yield often clashes with the need for high disease resistance, making it essential to find a balance between these two factors.
  • Recent research aims to reduce the negative impact of disease resistance on growth by exploring resistance (R) genes, susceptibility (S) genes, and pleiotropic genes, as well as strategies to optimize growth and defense for better crop breeding.

Article Abstract

Plants have evolved a multi-layered immune system to fight off pathogens. However, immune activation is costly and is often associated with growth and development penalty. In crops, yield is the main breeding target and is usually affected by high disease resistance. Therefore, proper balance between growth and defence is critical for achieving efficient crop improvement. This review highlights recent advances in attempts designed to alleviate the trade-offs between growth and disease resistance in crops mediated by resistance (R) genes, susceptibility (S) genes and pleiotropic genes. We also provide an update on strategies for optimizing the growth-defence trade-offs to breed future crops with desirable disease resistance and high yield.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11022801PMC
http://dx.doi.org/10.1111/pbi.14258DOI Listing

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