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Induced Preference Improves Offspring Fitness in a Phytopathogen Vector.

D G Stockton1, L E Pescitelli1, T A Ebert1

  • 1Department of Entomology and Nematology, Citrus Research and Education Center, University of Florida, Lake Alfred, FL 33850.

Environmental Entomology
|September 30, 2017
PubMed
Summary
This summary is machine-generated.

Asian citrus psyllid (Diaphorina citri) females show host preference based on natal experience. Maternal experience influences offspring adaptation, impacting psyllid performance and reproductive strategies.

Keywords:
Asian citrus psyllidadaptive plasticityhost switchinghuanglongbinginduced preference and performance

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Area of Science:

  • Entomology
  • Behavioral Ecology
  • Plant-Insect Interactions

Background:

  • Learning influences host recognition and mate preference in Asian citrus psyllid (Diaphorina citri).
  • The occurrence of induced female oviposition preference in D. citri remains unclear.

Purpose of the Study:

  • Investigate the influence of natal host experience on adult oviposition preference in D. citri.
  • Determine if maternal host experience affects D. citri oviposition choices and offspring performance.

Main Methods:

  • Rearing D. citri nymphs on 'Valencia' orange (Citrus x sinesis) or orange jasmine (Murraya paniculata).
  • Assessing adult oviposition preference between the two host plants.
  • Evaluating nymphal development time, adult size, and mortality rates after host transfer.

Main Results:

  • Psyllids reared on 'Valencia' orange preferred it for oviposition over orange jasmine.
  • Natal host experience significantly impacted D. citri nymphal development and adult size.
  • Transferring nymphs to a non-natal host increased mortality, indicating reduced fitness.

Conclusions:

  • Natal host experience induces oviposition preference in D. citri females.
  • Maternal host fidelity is advantageous, especially when orange jasmine negatively affects juvenile psyllid performance.
  • Induced oviposition preference is a key adaptive plasticity mechanism for D. citri reproductive strategies.