Flagellar sensilla of two species of Andrena (hymenoptera: Andrenidae)

Ågren, Lennart

doi:10.1016/s0020-7322(78)80016-6

Cited by 42 publications

(35 citation statements)

References 5 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: 85%

“…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: 85%

Section: Discussionmentioning

confidence: 72%

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

et al. 2017

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“…The Journal of Comparative Neurology | Research in Systems Neuroscience were found only in females and were entirely absent in males. This sensilla type is also female specific in other Hymenoptera (Ågren, 1977, 1978Ågren and Hallberg, 1996;Esslen and Kaissling, 1976;Mysore et al, 2010;Nakanishi et al, 2009;Nishino et al, 2009). A role in gustatory and olfactory chemoreception of colony-specific cuticular hydrocarbon profiles has been proposed for S. basiconica, but conclusive studies on their function are still lacking (Ozaki et al, 2005; but see Brandstaetter and Kleineidam, 2011).…”

Section: Sex-specific Adaptations Of the Antennamentioning

confidence: 99%

Sexual dimorphism in the olfactory system of a solitary and a eusocial bee species

Streinzer

Kelber

Pfabigan

et al. 2013

J of Comparative Neurology

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Sexually dimorphic sensory systems are common in Hymenoptera and are considered to result from sex-specific selection pressures. An extreme example of sensory dimorphism is found in the solitary bee tribe Eucerini. Males of long-horned bees bear antennae that exceed body length. This study investigated the pronounced sexual dimorphism of the peripheral olfactory system and its representation in higher brain centers of the species Eucera berlandi. Eucera males have elongated antennae, with 10 times more pore plates and three times more olfactory receptor neurons than females. The male antennal lobe (AL) comprises fewer glomeruli than the female AL (∼100 vs. ∼130), of which four are male-specific macroglomeruli. No sex differences were found in the relative volume of the mushroom bodies, a higher order neuropil essential for learning and memory in Hymenoptera. Compared with the Western honeybee, the degree of sexual dimorphism in Eucera is more pronounced at the periphery. In contrast, sex differences in glomerular numbers are higher in the eusocial honeybee and a sexual dimorphism of the relative investment in mushroom body tissue is observed only in Apis. The observed differences between the eusocial and the solitary bee species may reflect differences in male-specific behavioral traits and associated selection pressures, which are discussed in brief.

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“…The results show that s. placodea, the most numerous on worker bee antennae, are oval discs with the longest diameter, and as obsevered in other honeybees [24,25] , the plate is raised and resembles a hemispherical dome separated from the surrounding surface by a crevice (Figure 7, sp). S. basiconica, uniquely found in females [24] , are thick, large and erect, have a thin wall, and are perforated by numerous and fairly large pores (Figure 7, sb).…”

Section: Immunocytochemical Localizationmentioning

confidence: 69%

The chemosensory protein of Chinese honeybee, Apis cerana cerana: Molecular cloning of cDNA, immunocytochemical localization and expression

Lou

Jiaan

et al. 2007

CHINESE SCI BULL

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Chemosensory proteins (CSPs) are ubiquitous soluble small proteins isolated from sensory organs thought to be involved in chemical communication. Here we report the first cDNA of CSPs, called Ac-ASP3, cloned and characterized from antennas of adult worker bees in Chinese honeybee, Apis cerana cerana. The Ac-ASP3 cDNA comprises 2 exons, with an ORF of 393-bp encoding 130 aa. Protein signature analyses show that the protein consists of four conserved cysteines and a signal peptide with 19 aa in the N-terminal sequence. The deduced protein sequence shares high homology with Am-ASP3 of Apis mellifera and low similarity with other species of insects. Immunocytochemical localization shows that Ac-ASP3 is only specifically expressed on the antenna contact chemosensilla such as sensilla trichodea B and sensilla basiconica, whereas Ac-ASP3 is scarcely expressed on olfactory chemosensilla such as sensilla placodea. Real-time PCR of Ac-ASP3 transcripts shows that Ac-ASP3 is highly expressed on wings and legs, but expression is lower on antenna. Temporal expression patterns suggest that Ac-ASP3 is expressed during the period of pupa and adults from 1-d to 6-d stages when bees act as house bees, cleaning the comb and taking care of the queen and larvae in comb. The above evidence suggests that Ac-ASP3 is unique in species and is generally not involved in olfaction during searching for honey and pollen. Rather, the protein seems to function in recognition of chemosensory substances on bees' cuticle and mechanical movement of antenna.

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Flagellar sensilla of two species of Andrena (hymenoptera: Andrenidae)

Cited by 42 publications

References 5 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

Sexual dimorphism in the olfactory system of a solitary and a eusocial bee species

The chemosensory protein of Chinese honeybee, Apis cerana cerana: Molecular cloning of cDNA, immunocytochemical localization and expression

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