Lateralization in the invertebrate brain: left-right asymmetry of olfaction in bumble bee, Bombus terrestris.

Brain and behavioural lateralization at the population level has been recently hypothesized to have evolved under social selective pressures as a strategy to optimize coordination among asymmetrical individuals. Evidence for this hypothesis have been collected in Hymenoptera: eusocial honey bees sho...

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Autores principales:	Gianfranco Anfora, Elisa Rigosi, Elisa Frasnelli, Vincenza Ruga, Federica Trona, Giorgio Vallortigara
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4ea324a422fd4dbdadd41c3b39fc74db
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spelling	oai:doaj.org-article:4ea324a422fd4dbdadd41c3b39fc74db2021-11-18T06:55:06ZLateralization in the invertebrate brain: left-right asymmetry of olfaction in bumble bee, Bombus terrestris.1932-620310.1371/journal.pone.0018903https://doaj.org/article/4ea324a422fd4dbdadd41c3b39fc74db2011-04-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21556150/?tool=EBIhttps://doaj.org/toc/1932-6203Brain and behavioural lateralization at the population level has been recently hypothesized to have evolved under social selective pressures as a strategy to optimize coordination among asymmetrical individuals. Evidence for this hypothesis have been collected in Hymenoptera: eusocial honey bees showed olfactory lateralization at the population level, whereas solitary mason bees only showed individual-level olfactory lateralization. Here we investigated lateralization of odour detection and learning in the bumble bee, Bombus terrestris L., an annual eusocial species of Hymenoptera. By training bumble bees on the proboscis extension reflex paradigm with only one antenna in use, we provided the very first evidence of asymmetrical performance favouring the right antenna in responding to learned odours in this species. Electroantennographic responses did not reveal significant antennal asymmetries in odour detection, whereas morphological counting of olfactory sensilla showed a predominance in the number of olfactory sensilla trichodea type A in the right antenna. The occurrence of a population level asymmetry in olfactory learning of bumble bee provides new information on the relationship between social behaviour and the evolution of population-level asymmetries in animals.Gianfranco AnforaElisa RigosiElisa FrasnelliVincenza RugaFederica TronaGiorgio VallortigaraPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 4, p e18903 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gianfranco Anfora Elisa Rigosi Elisa Frasnelli Vincenza Ruga Federica Trona Giorgio Vallortigara Lateralization in the invertebrate brain: left-right asymmetry of olfaction in bumble bee, Bombus terrestris.
description	Brain and behavioural lateralization at the population level has been recently hypothesized to have evolved under social selective pressures as a strategy to optimize coordination among asymmetrical individuals. Evidence for this hypothesis have been collected in Hymenoptera: eusocial honey bees showed olfactory lateralization at the population level, whereas solitary mason bees only showed individual-level olfactory lateralization. Here we investigated lateralization of odour detection and learning in the bumble bee, Bombus terrestris L., an annual eusocial species of Hymenoptera. By training bumble bees on the proboscis extension reflex paradigm with only one antenna in use, we provided the very first evidence of asymmetrical performance favouring the right antenna in responding to learned odours in this species. Electroantennographic responses did not reveal significant antennal asymmetries in odour detection, whereas morphological counting of olfactory sensilla showed a predominance in the number of olfactory sensilla trichodea type A in the right antenna. The occurrence of a population level asymmetry in olfactory learning of bumble bee provides new information on the relationship between social behaviour and the evolution of population-level asymmetries in animals.
format	article
author	Gianfranco Anfora Elisa Rigosi Elisa Frasnelli Vincenza Ruga Federica Trona Giorgio Vallortigara
author_facet	Gianfranco Anfora Elisa Rigosi Elisa Frasnelli Vincenza Ruga Federica Trona Giorgio Vallortigara
author_sort	Gianfranco Anfora
title	Lateralization in the invertebrate brain: left-right asymmetry of olfaction in bumble bee, Bombus terrestris.
title_short	Lateralization in the invertebrate brain: left-right asymmetry of olfaction in bumble bee, Bombus terrestris.
title_full	Lateralization in the invertebrate brain: left-right asymmetry of olfaction in bumble bee, Bombus terrestris.
title_fullStr	Lateralization in the invertebrate brain: left-right asymmetry of olfaction in bumble bee, Bombus terrestris.
title_full_unstemmed	Lateralization in the invertebrate brain: left-right asymmetry of olfaction in bumble bee, Bombus terrestris.
title_sort	lateralization in the invertebrate brain: left-right asymmetry of olfaction in bumble bee, bombus terrestris.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/4ea324a422fd4dbdadd41c3b39fc74db
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Lateralization in the invertebrate brain: left-right asymmetry of olfaction in bumble bee, Bombus terrestris.

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