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Micron

Title:		Diversity of olfactory structures: A comparative study of antennal sensilla in Trichoptera and Lepidoptera
Author(s):		Yuvaraj JK; Andersson MN; Anderbrant O; Lofstedt C;
Address:		"Department of Biology, Lund University, SE-223 62, Lund, Sweden. Electronic address: jothi_kumar.yuvaraj@biol.lu.se. Department of Biology, Lund University, SE-223 62, Lund, Sweden"
Journal Title:		Micron
Year:		2018
Volume:		20180524
Issue:
Page Number:		9 - 18
DOI:		10.1016/j.micron.2018.05.006
ISSN/ISBN:		1878-4291 (Electronic) 0968-4328 (Linking)
Abstract:		"The antenna is the main sensory organ of insects, housing different types of sensilla dedicated to detect chemical cues, motion, humidity and temperature. Sensilla are divided into different types based on their wall structure and morphology. Among the olfactory sensilla, there is an enormous variation in the numbers and morphological types present in different insect taxa. The reasons for this variation remain obscure, though there may be a correlation between sensillum morphology and the characteristics of the stimulus that the olfactory sensory neurons inside the sensillum detect. Here, we report the first comparative analysis of the morphology and ultrastructure of sensilla from Rhyacophila nubila (Rhyacophilidae: Trichoptera) and three species of Lepidoptera, Eriocrania semipurpurella (Eriocraniidae), Lampronia capitella (Prodoxidae), and Bicyclus anynana (Nymphalidae), which use different chemical types of pheromones. Our results, together with a thorough literature review, suggest a shift in major types of olfactory sensilla, from a high proportion of sensilla placodea or auricillica in Trichoptera and the most basal moth lineages (including Eriocraniidae), respectively, to sensilla trichodea in the more derived Lepidoptera (including Prodoxidae and the Ditrysia clade), which parallels the change in the types of sex pheromones used"
Keywords:		"Animals Butterflies/*anatomy & histology/classification Female Male Microscopy, Electron, Scanning Microscopy, Electron, Transmission Moths/*anatomy & histology/classification Pheromones/metabolism Sensilla/*anatomy & histology/physiology/*ultrastructure;"
Notes:		"MedlineYuvaraj, Jothi Kumar Andersson, Martin N Anderbrant, Olle Lofstedt, Christer eng Research Support, Non-U.S. Gov't England 2018/05/29 Micron. 2018 Aug; 111:9-18. doi: 10.1016/j.micron.2018.05.006. Epub 2018 May 24"