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March 13, 2026Molecular Biology and EvolutionOpen Access

Intraspecific genome size variation is attributed to adaptive silencing of transposable elements in Hordeum species

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Authors

EPEvgenii PotapenkoInstitute of CytologyBSBar ShermeisterMigal - Galilee Technology CenterTMTali Mandel

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Implication

Demonstrates how transposable element silencing affects genome size variation in Hordeum, suggesting implications for genetic diversity in changing environments.

Key Points

  • The study investigates the relationship between genome size variation and adaptive silencing of transposable elements in Hordeum species.
  • Examined two Hordeum species from diverse environments
  • Analyzed the impact of life habits and mating strategies on genome size
  • Conducted genome-wide association analyses to link TE silencing with genome size regulation
  • Observed up to 10% genome size variation between species
  • Identified drought as a key factor influencing larger genomes
  • Found that transposable element silencing plays a crucial role in maintaining smaller genomes in favorable habitats

Cite This Study

Potapenko et al. (2026) studied this question.

synapsesocial.com/papers/69b3abb202a1e69014cccc72https://doi.org/10.1093/molbev/msag051
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