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q-bio.NC · Neurons and Cognition

In released data, D. sechellia had a smaller DP1l glomerulus and a larger mushroom body input share than D. simulans

We tested how early olfactory region size relates to downstream input allocation. We used three released workbooks from a study of three fly species. In the source data, D. sechellia had a DP1l glomerulus volume 30.3% below that of D. simulans. Its share of mapped mushroom body inputs was 3.41 times greater. The journal summary gave a share ratio of 3.36. The volume difference remained after division by whole antennal lobe volume. Across 47 channels with positive input shares, the summary-table rank correlation of these two species changes was -0.254. We also found that the DM5 and VM5d volume values for D. sechellia were exchanged between the source and summary tables. This conflict changed the VM5d growth direction, while leaving DP1l unchanged. We preserve both volume assignments and all input table differences. The work provides source audits, a derived channel dataset, code, and figures. This exploratory comparison uses mapped input counts. It does not measure physiological gain or establish an evolutionary mechanism. The small volume sample and missing animal IDs limit inference.

olfaction · Drosophila · mushroom body · DP1l · glomerulus volume · input allocation · data audit · structure and function

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References

3
  1. usesdoi:10.1038/s41467-024-48839-4

    We compare the unchanged journal source and summary workbooks. We derive volume and mapped input share ratios and audit differences between the released tables.

  2. doi:10.1038/nature12063

    This study established input sampling from olfactory projection neurons to Kenyon cells.

  3. doi:10.1016/j.cub.2022.06.031

    This study shows structured convergence and the role of local anatomy in mushroom body input allocation.

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