Temperature-dependent embryoless seeds improve milled rice yield and storability.

J Integr Plant Biol

State Key Laboratory of Plant Trait Design, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academic of Sciences, Shanghai, 200032, China.

Published: August 2025


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Article Abstract

During rice seed storage, lipid hydrolysis and oxidation in the embryo generate off-flavors. This Commentary examines a study by Wang et al., who demonstrated that manipulating OsBZR4 in various rice cultivars induces a high proportion of embryoless seeds by altering auxin levels and spatial distribution during early embryogenesis-a process intensified under elevated temperatures.

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http://dx.doi.org/10.1111/jipb.70028DOI Listing

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Temperature-dependent embryoless seeds improve milled rice yield and storability.

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State Key Laboratory of Plant Trait Design, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academic of Sciences, Shanghai, 200032, China.

During rice seed storage, lipid hydrolysis and oxidation in the embryo generate off-flavors. This Commentary examines a study by Wang et al., who demonstrated that manipulating OsBZR4 in various rice cultivars induces a high proportion of embryoless seeds by altering auxin levels and spatial distribution during early embryogenesis-a process intensified under elevated temperatures.

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Article Synopsis
  • The cytoplasm of wheat plays a crucial role in inducing male sterility and haploidy, influencing various aspects of plant fertility and development.
  • While the main fertility restorer locus on chromosome arm 1BS shows little variation, other genes may also impact the interactions between the nuclear and mitochondrial genomes, affecting traits from pollen competition to seed size.
  • The study reveals complex cytoplasmic-nuclear interactions that can lead to various fertilization outcomes, and further genetic analysis is needed to better understand the suppressors and enhancers involved in maternal haploid production in wheat.
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