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July 20, 2026BioControlOpen Access

Diet-driven reproduction: exploring the relationship between aphid feeding and fertility in the lady beetle Eriopis connexa (Coleoptera: Coccinellidae)

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Authors

CRCaio Victor de Brito RemigioINIanne Caroline da Silva NobreGCGlaucilane S. Cruz

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Overview

Randomized trial explores how aphid feeding affects fertility in lady beetles, suggesting better biological control strategies.

Key Points

  • This research aims to investigate how the diet of Eriopis connexa affects its reproductive success, particularly the role of aphids as a preferred prey.
  • Compared reproductive output of E. connexa females fed with E. kuehniella eggs only vs. those supplemented with aphids.
  • Monitored oviposition patterns, egg viability, and molecular changes over a period of 60 days.
  • Analyzed changes in key genes related to reproduction and metabolism.
  • Females on an aphid-supplemented diet showed a significant decrease in egg viability to 35% after 30 days, while those on E. kuehniella eggs alone stopped laying around day 60 with near 0% viability.
  • Aphid-fed females showed a twofold downregulation of vitellogenin 1 (Vg1) and a 40-fold upregulation of its receptor (VgR).
  • Molecular analysis revealed upregulation of AKT and FoxO, indicating an enhanced insulin signaling pathway in response to the absence of aphids.

Cite This Study

Remigio et al. (2026) studied this question.

synapsesocial.com/papers/6a5dbab88bd453d3397abcc0https://doi.org/10.1007/s10526-026-10419-4
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Also Consider

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  1. 1Insights from different reproductive gene knockdowns via RNA interference in the lady beetle <i>Eriopis connexa</i>: Establishing a new model for molecular studies on natural enemies2024 · 7 citations
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