RT Journal Article SR Electronic T1 Transcriptional expression changes during compensatory plasticity in the prothoracic ganglion of the adult cricket Gryllus bimaculatus JF bioRxiv FD Cold Spring Harbor Laboratory SP 2021.11.24.469824 DO 10.1101/2021.11.24.469824 A1 Felicia Wang A1 Harrison Fisher A1 Maeve Morse A1 Lisa L. Ledwidge A1 Jack O’Brien A1 Sarah E. Kingston A1 Justin Beckman A1 Jasmine J. Johnson A1 Lyn S. Miranda Portillo A1 Tabarak N. Al Musawi A1 Alexandra W. Rubenstein A1 David A. Michaelson A1 Hadley Wilson Horch YR 2021 UL http://biorxiv.org/content/early/2021/11/24/2021.11.24.469824.1.abstract AB Most adult organisms are limited in their capacity to recover from neurological damage. The auditory system of the Mediterranean field cricket, Gryllus bimaculatus, presents a compelling model for investigating neuroplasticity due to its unusual capabilities for structural reorganization into adulthood. Specifically, the dendrites of the central auditory neurons of the prothoracic ganglion sprout in response to the loss of auditory afferents. Deafferented auditory dendrites grow across the midline, a boundary they normally respect, and form functional synapses with the contralateral auditory afferents, restoring tuning-curve specificity. The molecular pathways underlying these changes are entirely unknown. Here, we used a multiple k-mer approach to re-assemble a previously reported prothoracic ganglion transcriptome that included ganglia collected one, three, and seven days after unilateral deafferentation in adult, male animals. We used EdgeR and DESeq2 to perform differential expression analysis and we examined Gene Ontologies to further understand the potential molecular basis of this compensatory anatomical plasticity. Enriched GO terms included those related to protein translation and degradation, enzymatic activity, and Toll signaling. Extracellular space GO terms were also enriched and included the upregulation of several protein yellow family members one day after deafferentation. Investigation of these regulated GO terms help to provide a broader understanding of the types of pathways that might be involved in this compensatory growth and can be used to design hypotheses around identified molecular mechanisms that may be involved in this unique example of adult structural plasticity.Competing Interest StatementThe authors have declared no competing interest.