Towards a molecular portrait of monarch butterfly migration: neuroplasticity in the monarch butterfly – UROP Spring Symposium 2022

Towards a molecular portrait of monarch butterfly migration: neuroplasticity in the monarch butterfly

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Deidre Mitchell

Pronouns: she/they

Research Mentor(s): Delbert Green
Co-Presenter:
Research Mentor School/College/Department: Ecology and Evolutionary Biology / LSA
Presentation Date: April 20
Presentation Type: Poster
Session: Session 6 – 4:40pm – 5:30 pm
Room: League Ballroom
Authors:
Presenter: 5

Abstract

Highlighting the importance of the Juvenile Hormone (JH) we are interested in the developmental contributions of this multifunction hormone. JH is believed to have an influence on migratory behaviors. Specifically, I am interested in the impact upon oocyte development with varying levels of JH. This could negatively impact the behavior, reproduction if oocytes are prevented from reaching optimal maturity. As we continue our study of migratory behavior deeply rooted in the genetics of the Monarch Butterfly we can observe these factors in the earlier stages of development. Drug therapy treatments will be implemented in caterpillar and pupa life stages for further comparison. We will continue our study and analysis of the genes: Methoprene-tolerant (MET), Krupple-homologue (Kr-h1), and Vitellogenin (Vg), by completing genetics expression profiling analysis. Our target structure is the Corpora Allara (CA), the JH secreting gland within the Monarch Butterfly. The CA secretion levels of the Juvenile hormone will be altered by our testing groups. Internal structures: oocytes, fat bodies, muscle, and brain will be dissected to complete gene expression profiling. We will divide our female Monarchs into four treatment groups; included are sham and control groups. Accompanying are Treatment I and Treatment II test groups that include drug therapy treatments of Precocene I (PI) and the methoprene (JH analog), respectively. Conclusions resulting from these observations will aid in the understanding of migrational processes. We hope to compare growth differences in physiology to help determine the significance of JH when regulating behaviors such as reproduction, Migration, and diapause.

Presentation link

Natural/Life Sciences, Natural/Life Sciences

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