The role of pigments in light color variation of the firefly Photinus pyralis .

Autor: Popecki MS, Rogers RL, Archer-Hartmann SA, Wares JP, Stanger-Hall KF
Jazyk: angličtina
Zdroj: BioRxiv : the preprint server for biology [bioRxiv] 2024 Sep 25. Date of Electronic Publication: 2024 Sep 25.
DOI: 10.1101/2024.09.23.614534
Abstrakt: Fireflies use bioluminescent signals to communicate with their mates. Luciferase has been thought to be the sole contributor to light color; however, populations of the Photinus pyralis firefly display variation in the color of their emitted signals yet have identical luciferase sequences. Here, we examined whether pigments could be present in the light organs of the twilight-active species P. pyralis and contribute to this variation. We detected patterns of expression that suggest ommochrome and pterin screening pigments are expressed in P. pyralis light organs and could filter light emitted by luciferase and play a role in signal tuning. There were no significant differences between the pigment gene expression of P. pyralis individuals with yellower and greener signals. Our study provides alternative mechanisms that could influence pigments in P. pyralis light organs that could also play a role in modifying signal color.
Databáze: MEDLINE