Antennal sensilla of two female anopheline sibling species with differing host ranges
Abstract Background Volatile odors are important sensory inputs that shape the behaviour of insects, including agricultural pests and disease vectors. Anopheles gambiae s.s. is a highly anthropophilic mosquito and is the major vector for human malaria in sub-Sahara Africa, while Anopheles quadriannu...
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ftdoajarticles:oai:doaj.org/article:666600ada27f4cdf93a32575327f83a5 2023-05-15T15:10:59+02:00 Antennal sensilla of two female anopheline sibling species with differing host ranges Zwiebel Laurence J Pitts R Jason 2006-03-01T00:00:00Z https://doi.org/10.1186/1475-2875-5-26 https://doaj.org/article/666600ada27f4cdf93a32575327f83a5 EN eng BMC http://www.malariajournal.com/content/5/1/26 https://doaj.org/toc/1475-2875 doi:10.1186/1475-2875-5-26 1475-2875 https://doaj.org/article/666600ada27f4cdf93a32575327f83a5 Malaria Journal, Vol 5, Iss 1, p 26 (2006) Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 2006 ftdoajarticles https://doi.org/10.1186/1475-2875-5-26 2022-12-31T08:39:01Z Abstract Background Volatile odors are important sensory inputs that shape the behaviour of insects, including agricultural pests and disease vectors. Anopheles gambiae s.s. is a highly anthropophilic mosquito and is the major vector for human malaria in sub-Sahara Africa, while Anopheles quadriannulatus , largely due to its zoophilic behaviour, is considered a non-vector species in the same region. Careful studies of olfaction in these sibling species may lead to insights about the mechanisms that drive host preference behaviour. In the present study, the external anatomy of the antenna, the principle olfactory organ in the female mosquito of both species, was examined as an initial step toward more detailed comparisons. Methods Scanning electron and light microscopy were used to examine the antennae ultrastructures of adult female An. gambiae s.s. and An. quadriannulatus . Sensory structures, called sensilla, were categorized and counted; their distributions are reported here as well as densities calculated for each species. Results Both An. gambiae s.s. and An. quadriannulatus bear five classes of sensilla on their antennae: chaetica (bristles), trichodea (hairs), basiconica (pegs), coeloconica (pitted pegs), and ampullacea (pegs in tubes). Female An. quadriannulatus antennae have approximately one-third more sensilla, and a proportionally larger surface area, than female An. gambiae s.s. antennae. Conclusion The same types of sensilla are found on the antennae of both species. While An. quadriannulatus has greater numbers of each sensilla type, sensilla densities are very similar for each species, suggesting that other factors may be more important to such olfactory-driven behaviours as host preference. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Malaria Journal 5 1 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
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English |
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Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
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Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Zwiebel Laurence J Pitts R Jason Antennal sensilla of two female anopheline sibling species with differing host ranges |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Abstract Background Volatile odors are important sensory inputs that shape the behaviour of insects, including agricultural pests and disease vectors. Anopheles gambiae s.s. is a highly anthropophilic mosquito and is the major vector for human malaria in sub-Sahara Africa, while Anopheles quadriannulatus , largely due to its zoophilic behaviour, is considered a non-vector species in the same region. Careful studies of olfaction in these sibling species may lead to insights about the mechanisms that drive host preference behaviour. In the present study, the external anatomy of the antenna, the principle olfactory organ in the female mosquito of both species, was examined as an initial step toward more detailed comparisons. Methods Scanning electron and light microscopy were used to examine the antennae ultrastructures of adult female An. gambiae s.s. and An. quadriannulatus . Sensory structures, called sensilla, were categorized and counted; their distributions are reported here as well as densities calculated for each species. Results Both An. gambiae s.s. and An. quadriannulatus bear five classes of sensilla on their antennae: chaetica (bristles), trichodea (hairs), basiconica (pegs), coeloconica (pitted pegs), and ampullacea (pegs in tubes). Female An. quadriannulatus antennae have approximately one-third more sensilla, and a proportionally larger surface area, than female An. gambiae s.s. antennae. Conclusion The same types of sensilla are found on the antennae of both species. While An. quadriannulatus has greater numbers of each sensilla type, sensilla densities are very similar for each species, suggesting that other factors may be more important to such olfactory-driven behaviours as host preference. |
format |
Article in Journal/Newspaper |
author |
Zwiebel Laurence J Pitts R Jason |
author_facet |
Zwiebel Laurence J Pitts R Jason |
author_sort |
Zwiebel Laurence J |
title |
Antennal sensilla of two female anopheline sibling species with differing host ranges |
title_short |
Antennal sensilla of two female anopheline sibling species with differing host ranges |
title_full |
Antennal sensilla of two female anopheline sibling species with differing host ranges |
title_fullStr |
Antennal sensilla of two female anopheline sibling species with differing host ranges |
title_full_unstemmed |
Antennal sensilla of two female anopheline sibling species with differing host ranges |
title_sort |
antennal sensilla of two female anopheline sibling species with differing host ranges |
publisher |
BMC |
publishDate |
2006 |
url |
https://doi.org/10.1186/1475-2875-5-26 https://doaj.org/article/666600ada27f4cdf93a32575327f83a5 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Malaria Journal, Vol 5, Iss 1, p 26 (2006) |
op_relation |
http://www.malariajournal.com/content/5/1/26 https://doaj.org/toc/1475-2875 doi:10.1186/1475-2875-5-26 1475-2875 https://doaj.org/article/666600ada27f4cdf93a32575327f83a5 |
op_doi |
https://doi.org/10.1186/1475-2875-5-26 |
container_title |
Malaria Journal |
container_volume |
5 |
container_issue |
1 |
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1766341910201368576 |