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Genes (Basel)

Title:		Behavioral Evolution of Drosophila: Unraveling the Circuit Basis
Author(s):		Sato K; Tanaka R; Ishikawa Y; Yamamoto D;
Address:		"Neuro-Network Evolution Project, Advanced ICT Research Institute, National Institute of Information and Communications Technology, Iwaoka, Nishi-ku, Kobe, Hyogo 651-2492, Japan. Division of Biological Science, Graduate School of Science, Nagoya University, Furo, Chikusa-ku, Nagoya, Aichi 464-8602, Japan"
Journal Title:		Genes (Basel)
Year:		2020
Volume:		20200201
Issue:		2
Page Number:		-
DOI:		10.3390/genes11020157
ISSN/ISBN:		2073-4425 (Electronic) 2073-4425 (Linking)
Abstract:		"Behavior is a readout of neural function. Therefore, any difference in behavior among different species is, in theory, an outcome of interspecies diversification in the structure and/or function of the nervous system. However, the neural diversity underlying the species-specificity in behavioral traits and its genetic basis have been poorly understood. In this article, we discuss potential neural substrates for species differences in the courtship pulse song frequency and mating partner choice in the Drosophila melanogaster subgroup. We also discuss possible neurogenetic mechanisms whereby a novel behavioral repertoire emerges based on the study of nuptial gift transfer, a trait unique to D. subobscura in the genus Drosophila. We found that the conserved central circuit composed primarily of fruitless-expressing neurons (the fru-circuit) serves for the execution of courtship behavior, whereas the sensory pathways impinging onto the fru-circuit or the motor pathways downstream of the fru-circuit are susceptible to changes associated with behavioral species differences"
Keywords:		"Animals Drosophila Proteins/genetics/*metabolism Drosophila melanogaster/*physiology *Neural Pathways Neurons/*physiology *Sexual Behavior, Animal courtship songs identified neurons nuptial gift pheromone perception species-specific behavior the fruitless;"
Notes:		"MedlineSato, Kosei Tanaka, Ryoya Ishikawa, Yuki Yamamoto, Daisuke eng Research Support, Non-U.S. Gov't Review Switzerland 2020/02/07 Genes (Basel). 2020 Feb 1; 11(2):157. doi: 10.3390/genes11020157"