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May 24, 2026Journal of Evolutionary Biology

Historical shifts and ecological patterns: Rethinking genome size evolution in Coffea L.

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Authors

SBSara Gonçalves BarbosaMSMariana Cansian SattlerMNMaicon Nardino

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Overview

Randomized trial evaluates genome size's role in ecological traits in Coffea, indicating lineage-specific influences.

Key Points

  • This research investigates the relationship between genome size and ecological traits in Coffea species.
  • Evaluated genome size variation in diploid Coffea using phylogenetic comparative methods.
  • Analyzed correlations between genome size and ecological traits such as latitudinal range and caffeine content.
  • Compared Coffea canephora and C. eugenioides genomes to assess links between gene copy number and caffeine production.
  • Genome size showed a positive correlation with caffeine content (CAF) but no significant association with latitudinal range or other traits.
  • A critical shift in genome size correlated with CAF was identified in a specific clade from West and Central Africa.
  • Gene copy number variations do not correlate with caffeine levels, suggesting regulatory changes drive caffeine production instead.

Cite This Study

Barbosa et al. (2026) studied this question.

synapsesocial.com/papers/6a12969d48a0ea1665673946https://doi.org/10.1093/jeb/voag035
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Coffea Comparative Genomics Reveals Subgenome-Associated Expansion and Diversification of Biosynthetic Gene Clusters2026
  2. 2Evolutionary history and climate-driven dynamics of transposable elements has shaped genome evolution in the Coffea genus2026
  3. 3Historical shifts and ecological patterns: Rethinking genome size evolution in Coffea L. - dataset and workflow2026
  4. 4Genetic basis of phenotypic diversity in 2025
  5. 5Non-volatile bioactive compounds and best linear unbiased prediction (BLUP)-based genetic estimates in wild African coffee accessions: the case of Coffea racemosa and Coffea zanguebariae2026