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October 1, 2025PLANT PHYSIOLOGY

The natural Msc-4 allele confers genic male sterility via conserved and divergent gene regulatory mechanisms in pepper

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Authors

HDHeshan DuXZXiaofei ZhangLRLi Ren

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Overview

Characterization of GMS mutant msc-4 reveals critical gene regulatory mechanisms in pepper, highlighting its potential for hybrid seed production.

Key Points

  • Mutations in CYP703A2 lead to genic male sterility without affecting vegetative growth.
  • Functional analysis showed a critical nonsense mutation in the CYP703A2 gene resulting in failed pollen development.
  • Comparative transcriptome analysis highlighted impaired fatty acid metabolism in msc-4 mutants.
  • Conserved regulatory mechanisms in the AMS-MYB80-CYP703A2 pathway suggest broad applications for vegetable crops.

Cite This Study

Du et al. (2025) studied this question.

synapsesocial.com/papers/68dd9537fe798ba2fc4997d7https://doi.org/10.1093/plphys/kiaf474
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