Flagellar sensilla of some colletidae (Hymenoptera: Apoidea)

Ågren, Lennart

doi:10.1016/0020-7322(77)90002-2

Cited by 46 publications

(39 citation statements)

References 12 publications

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“…Our results support the hypothesis that non-parasitic species having sexual dimorphisms present differences in the abundance of multiporous sensilla (Esslen and Kaissling 1976;Ågren 1977, 1978Galvani et al 2012;Streinzer et al 2013;Ravaiano et al 2014 Fig. 8 Plots of sample scores extracted by the principal components I and II.…”

Section: Discussionsupporting

confidence: 84%

“…Eucerini and Emphorini species showed conspicuous rows of dorsal setae in the distal zone. The segregation in the dorsal distribution of sensilla was already observed in bees of Colletidae, Andrenidae, Halictidae, and Apidae (Ågren 1977, 1978Ågren and Svensson, 1982;Galvani et al 2012; Fig. 7 Densities in multiporous, uniporous and nonporous sensilla on F10 of females of Apidae.…”

Section: Discussionmentioning

confidence: 72%

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Antennal sensilla of cleptoparasitic and non-parasitic bees in two subfamilies of Apidae

et al. 2017

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-In bees, most of the comparative studies linking the sensory system and behavior were performed in social species. Here, we describe the morphology of antennal sensilla in solitary and cleptoparasitic bees of Apinae and Nomadinae. The external and internal structure of sensilla and setae as well as their distribution in flagella were studied in detail in two different host-cleptoparasitic associations. In addition, taking into account the presence of pores, the distribution of sensilla was compared in females and males of 39 species of these subfamilies. It was found that males of non-parasitic bees showed a higher number of multiporous sensilla. Females had more uniporous and nonporous sensilla than males. Cleptoparasitic bees showed a low diversity in types of sensilla and no sexual dimorphism in number. The pattern of sensilla in males and their cleptoparasitic females was discussed in the context of their ecological roles.antennal morphology / sensilla ultrastructure / olfaction / dimorphism

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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 72%

Antennal sensilla of cleptoparasitic and non-parasitic bees in two subfamilies of Apidae

et al. 2017

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“…Males entirely lack basiconic sensilla ( Fig. 2 A and B), as in other ants and bees (16,(33)(34)(35). In contrast, workers possess about 65 basiconic sensilla, all clustered in an array on the anterior-ventral surface of the antennal club ( Fig.…”

Section: Resultsmentioning

confidence: 82%

Transcriptomics and neuroanatomy of the clonal raider ant implicate an expanded clade of odorant receptors in chemical communication

McKenzie

Fetter-Pruneda

Ruta

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

122

182

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A major aim of sociogenomic research is to uncover common principles in the molecular evolution of sociality. This endeavor has been hampered by the small number of specific genes currently known to function in social behavior. Here we provide several lines of evidence suggesting that ants have evolved a large and novel clade of odorant receptor (OR) genes to perceive hydrocarbonbased pheromones, arguably the most important signals in ant communication. This genomic expansion is also mirrored in the ant brain via a corresponding expansion of a specific cluster of glomeruli in the antennal lobe. We show that in the clonal raider ant, hydrocarbon-sensitive basiconic sensilla are found only on the ventral surface of the female antennal club. Correspondingly, nearly all genes in a clade of 180 ORs within the 9-exon subfamily of ORs are expressed exclusively in females and are highly enriched in expression in the ventral half of the antennal club. Furthermore, we found that across species and sexes, the number of 9-exon ORs expressed in antennae is tightly correlated with the number of glomeruli in the antennal lobe region innervated by odorant receptor neurons from basiconic sensilla. Evolutionary analyses show that this clade underwent a striking gene expansion in the ancestors of all ants and slower but continued expansion in extant ant lineages. This evidence suggests that ants have evolved a large clade of genes to support pheromone perception and that gene duplications have played an important role in the molecular evolution of ant communication.sociogenomics | chemosensation | social evolution | antennal lobe | Formicidae T he field of sociogenomics seeks to understand the molecular basis of sociality, asking how social life evolved and how it is governed at the genomic level (1). A particularly pertinent question in the field is the role of novel genes vs. conserved genes in the evolution and regulation of social behaviors, including communication (2, 3). Communication is important to a broad range of organisms, yet relatively little is known about the genetic components of communication systems and how they evolve. A particularly interesting question in the field is how social signals are perceived and what sort of genetic and physiological specializations facilitate signal perception in highly social organisms (4, 5). In the most tractable sociogenomic models, the eusocial hymenopteran insects, communication is largely chemical, and the genetics and physiology of chemosensation in these species may hold the key to understanding their advanced communication (4,6, 74).Much is already known about the insect chemosensory system in general (8,9). Briefly, chemicals are detected by porous sensory hairs (sensilla) located on chemosensory organs such as the legs, wings, palps, and especially the antennae. The sensilla house the dendrites of olfactory and/or gustatory receptor neurons (ORNs/GRNs) with receptor proteins in the olfactory receptor (OR), the gustatory receptor (GR), or the ionotropic receptor (IR) gene ...

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“…Sensilla trichodea are freely moveable setiform hairs of variable length with generally a proportional diameter with respect to length. They have been ascribed functions such as mechanosensory, chemosensory and thermo sensory; sensitive to touch vibrations, air movements and sound (Erickson et al 2009) and also touch and taste receptors (Vogel 1921;Frisch 1967;Schneider 1968;Dietz and Humphreys 1971 Steinbrecht 1968;Agren 1977;Crane 1990) A . d o r s a t a , A .…”

Section: Discussionmentioning

confidence: 99%

Scanning electron microscopic study on the mouthparts of Apis florea (Hymenoptera: Apidae)

Kumar

2016

Apidologie

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-The present study was undertaken to examine sensory structures on the mouthparts in Apis florea Fabricius (1787) from north western region (India) using scanning electron microscopy. Ultra morphological details revealed that mouthparts of the dwarf honey bees were studded with different sensory structures including sensilla chaetica (A, B and C); sensilla basiconica; sensilla trichodea C; nodulated-form sensilla trichodea C; hair membrane plate sensilla; branched processes and cuticular plate sensilla, which made the organism efficient in forage detection and collection. Sensilla chaetica were found on prementum, galea, labial palps and the glossa and made flow of liquid food to the buccal cavity convenient. Sensilla basiconica were found on labial palps and served probably as a thermoreceptor and hygroreceptor. Cuticular plate sensilla on labial palps and hair membrane plate sensilla found on galea may serve to adjust the segments of the organ and act as mechanoreceptors. The identification and analysis of the distribution of various types of sensilla on the tongue of A. florea should be helpful when addressing questions on the ecological and systematic characterisation of the species in future investigations.Apis florea / honey bee / scanning electron microscopy / sensilla / mouthparts

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Flagellar sensilla of some colletidae (Hymenoptera: Apoidea)

Cited by 46 publications

References 12 publications

Antennal sensilla of cleptoparasitic and non-parasitic bees in two subfamilies of Apidae

Antennal sensilla of cleptoparasitic and non-parasitic bees in two subfamilies of Apidae

Transcriptomics and neuroanatomy of the clonal raider ant implicate an expanded clade of odorant receptors in chemical communication

Scanning electron microscopic study on the mouthparts of Apis florea (Hymenoptera: Apidae)

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