Suitability of drone olfactory sensitivity as a selection trait for Varroa-resistance in honeybees

Abstract The most effective strategy against brood diseases, such as those stemming from infestation by the mite Varroa destructor, is the early detection and removal of sick brood. Recent findings suggest that genes associated with worker bee olfactory perception play a central role in Varroa-sensi...

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Autores principales:	Ivelina Ivanova, Kaspar Bienefeld
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fc60cec0a06a460aa14397e05c5ebb36
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spelling	oai:doaj.org-article:fc60cec0a06a460aa14397e05c5ebb362021-12-02T17:19:15ZSuitability of drone olfactory sensitivity as a selection trait for Varroa-resistance in honeybees10.1038/s41598-021-97191-w2045-2322https://doaj.org/article/fc60cec0a06a460aa14397e05c5ebb362021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97191-whttps://doaj.org/toc/2045-2322Abstract The most effective strategy against brood diseases, such as those stemming from infestation by the mite Varroa destructor, is the early detection and removal of sick brood. Recent findings suggest that genes associated with worker bee olfactory perception play a central role in Varroa-sensitive hygiene (VSH). In this study, the odour sensitivity of Apis mellifera drones was examined through proboscis extension response (PER) conditioning. Individuals sensitive/insensitive to the two Varroa-parasitised-brood odours (extract-low and extract-high) were used for breeding. Twenty-one queens from a VSH-selected line (SelQ) and nineteen queens from a nonselected line (ConQ) were single-drone-inseminated with sperm from drones that showed either sensitivity (SenD+) or insensitivity (SenD−) to the two extracts. Individual VSH behaviour in a total of 5072 offspring of these combinations (SelQ × SenD+, SelQ × SenD−, ConQ × SenD+, ConQ × SenD−) was subsequently observed in a specially designed observation unit with infrared light. The results from the video observation were also separately examined, considering the genetic origin (VSH-selected or nonselected line) of the participating queens and drones. While the drone PER conditioning results were not significantly reflected in the VSH results of the respective offspring, the genetic origin of the participating queens/drones was crucial for VSH manifestation.Ivelina IvanovaKaspar BienefeldNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ivelina Ivanova Kaspar Bienefeld Suitability of drone olfactory sensitivity as a selection trait for Varroa-resistance in honeybees
description	Abstract The most effective strategy against brood diseases, such as those stemming from infestation by the mite Varroa destructor, is the early detection and removal of sick brood. Recent findings suggest that genes associated with worker bee olfactory perception play a central role in Varroa-sensitive hygiene (VSH). In this study, the odour sensitivity of Apis mellifera drones was examined through proboscis extension response (PER) conditioning. Individuals sensitive/insensitive to the two Varroa-parasitised-brood odours (extract-low and extract-high) were used for breeding. Twenty-one queens from a VSH-selected line (SelQ) and nineteen queens from a nonselected line (ConQ) were single-drone-inseminated with sperm from drones that showed either sensitivity (SenD+) or insensitivity (SenD−) to the two extracts. Individual VSH behaviour in a total of 5072 offspring of these combinations (SelQ × SenD+, SelQ × SenD−, ConQ × SenD+, ConQ × SenD−) was subsequently observed in a specially designed observation unit with infrared light. The results from the video observation were also separately examined, considering the genetic origin (VSH-selected or nonselected line) of the participating queens and drones. While the drone PER conditioning results were not significantly reflected in the VSH results of the respective offspring, the genetic origin of the participating queens/drones was crucial for VSH manifestation.
format	article
author	Ivelina Ivanova Kaspar Bienefeld
author_facet	Ivelina Ivanova Kaspar Bienefeld
author_sort	Ivelina Ivanova
title	Suitability of drone olfactory sensitivity as a selection trait for Varroa-resistance in honeybees
title_short	Suitability of drone olfactory sensitivity as a selection trait for Varroa-resistance in honeybees
title_full	Suitability of drone olfactory sensitivity as a selection trait for Varroa-resistance in honeybees
title_fullStr	Suitability of drone olfactory sensitivity as a selection trait for Varroa-resistance in honeybees
title_full_unstemmed	Suitability of drone olfactory sensitivity as a selection trait for Varroa-resistance in honeybees
title_sort	suitability of drone olfactory sensitivity as a selection trait for varroa-resistance in honeybees
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/fc60cec0a06a460aa14397e05c5ebb36
work_keys_str_mv	AT ivelinaivanova suitabilityofdroneolfactorysensitivityasaselectiontraitforvarroaresistanceinhoneybees AT kasparbienefeld suitabilityofdroneolfactorysensitivityasaselectiontraitforvarroaresistanceinhoneybees
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Suitability of drone olfactory sensitivity as a selection trait for Varroa-resistance in honeybees

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