Within and among population differences in cuticular hydrocarbons in the seabird tick Ixodes uriae
The hydrophobic layer of the arthropod cuticle acts to maintain water balance, but can also serve to transmit chemical signals via cuticular hydrocarbons (CHC), essential mediators of arthropod behavior. CHC signatures typically vary qualitatively among species, but also quantitatively among populat...
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ftdoajarticles:oai:doaj.org/article:bcddf1275bf8457c843fb93901a7d106 2023-11-12T04:14:24+01:00 Within and among population differences in cuticular hydrocarbons in the seabird tick Ixodes uriae Dupraz, Marlène Leroy, Chloé Thórarinsson, Thorkell Lindberg d’Ettorre, Patrizia McCoy, Karen D. 2022-08-01T00:00:00Z https://doi.org/10.24072/pcjournal.164 https://doaj.org/article/bcddf1275bf8457c843fb93901a7d106 EN eng Peer Community In https://peercommunityjournal.org/articles/10.24072/pcjournal.164/ https://doaj.org/toc/2804-3871 doi:10.24072/pcjournal.164 2804-3871 https://doaj.org/article/bcddf1275bf8457c843fb93901a7d106 Peer Community Journal, Vol 2, Iss , Pp - (2022) Archaeology CC1-960 Science Q article 2022 ftdoajarticles https://doi.org/10.24072/pcjournal.164 2023-10-29T00:40:01Z The hydrophobic layer of the arthropod cuticle acts to maintain water balance, but can also serve to transmit chemical signals via cuticular hydrocarbons (CHC), essential mediators of arthropod behavior. CHC signatures typically vary qualitatively among species, but also quantitatively among populations within a species, and have been used as taxonomic tools to differentiate species or populations in a variety of taxa. Most work in this area to date has focused on insects, with little known for other arthropod groups such as ticks. The worldwide distribution and extensive host-range of the seabird tick Ixodes uriae make it a good model to study the factors influencing CHC composition. Genetically differentiated host-races of I. uriae have evolved across the distribution of this species but the factors promoting sympatric population divergence are still unknown. To test for a potential role of host-associated CHC in population isolation, we collected I. uriae specimens from two of its seabird hosts, the Atlantic puffin (Fratercula arctica) and the common guillemot (Uria aalge) in different colonies in Iceland. Using gas-chromatography and mass-spectrometry, we detected a complex cuticular mixture of 22 hydrocarbons, including n-alkanes, methyl-alkanes and alkenes ranging from 17 to 33 carbons in length. We found that each population had a distinct CHC profile. The host group explained the greatest amount of population divergence, with long-chain hydrocarbons being more abundant in puffin tick populations compared to guillemot tick populations. Future work will now be required to test whether the different CHC signals reinforce assortative mating, thereby playing a role in generating I. uriae population divergence patterns, and to evaluate diverse hypotheses on the origin of distinct population signatures. Article in Journal/Newspaper Atlantic puffin common guillemot fratercula Fratercula arctica Iceland Uria aalge uria Directory of Open Access Journals: DOAJ Articles Peer Community Journal 2 |
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Archaeology CC1-960 Science Q |
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Archaeology CC1-960 Science Q Dupraz, Marlène Leroy, Chloé Thórarinsson, Thorkell Lindberg d’Ettorre, Patrizia McCoy, Karen D. Within and among population differences in cuticular hydrocarbons in the seabird tick Ixodes uriae |
topic_facet |
Archaeology CC1-960 Science Q |
description |
The hydrophobic layer of the arthropod cuticle acts to maintain water balance, but can also serve to transmit chemical signals via cuticular hydrocarbons (CHC), essential mediators of arthropod behavior. CHC signatures typically vary qualitatively among species, but also quantitatively among populations within a species, and have been used as taxonomic tools to differentiate species or populations in a variety of taxa. Most work in this area to date has focused on insects, with little known for other arthropod groups such as ticks. The worldwide distribution and extensive host-range of the seabird tick Ixodes uriae make it a good model to study the factors influencing CHC composition. Genetically differentiated host-races of I. uriae have evolved across the distribution of this species but the factors promoting sympatric population divergence are still unknown. To test for a potential role of host-associated CHC in population isolation, we collected I. uriae specimens from two of its seabird hosts, the Atlantic puffin (Fratercula arctica) and the common guillemot (Uria aalge) in different colonies in Iceland. Using gas-chromatography and mass-spectrometry, we detected a complex cuticular mixture of 22 hydrocarbons, including n-alkanes, methyl-alkanes and alkenes ranging from 17 to 33 carbons in length. We found that each population had a distinct CHC profile. The host group explained the greatest amount of population divergence, with long-chain hydrocarbons being more abundant in puffin tick populations compared to guillemot tick populations. Future work will now be required to test whether the different CHC signals reinforce assortative mating, thereby playing a role in generating I. uriae population divergence patterns, and to evaluate diverse hypotheses on the origin of distinct population signatures. |
format |
Article in Journal/Newspaper |
author |
Dupraz, Marlène Leroy, Chloé Thórarinsson, Thorkell Lindberg d’Ettorre, Patrizia McCoy, Karen D. |
author_facet |
Dupraz, Marlène Leroy, Chloé Thórarinsson, Thorkell Lindberg d’Ettorre, Patrizia McCoy, Karen D. |
author_sort |
Dupraz, Marlène |
title |
Within and among population differences in cuticular hydrocarbons in the seabird tick Ixodes uriae |
title_short |
Within and among population differences in cuticular hydrocarbons in the seabird tick Ixodes uriae |
title_full |
Within and among population differences in cuticular hydrocarbons in the seabird tick Ixodes uriae |
title_fullStr |
Within and among population differences in cuticular hydrocarbons in the seabird tick Ixodes uriae |
title_full_unstemmed |
Within and among population differences in cuticular hydrocarbons in the seabird tick Ixodes uriae |
title_sort |
within and among population differences in cuticular hydrocarbons in the seabird tick ixodes uriae |
publisher |
Peer Community In |
publishDate |
2022 |
url |
https://doi.org/10.24072/pcjournal.164 https://doaj.org/article/bcddf1275bf8457c843fb93901a7d106 |
genre |
Atlantic puffin common guillemot fratercula Fratercula arctica Iceland Uria aalge uria |
genre_facet |
Atlantic puffin common guillemot fratercula Fratercula arctica Iceland Uria aalge uria |
op_source |
Peer Community Journal, Vol 2, Iss , Pp - (2022) |
op_relation |
https://peercommunityjournal.org/articles/10.24072/pcjournal.164/ https://doaj.org/toc/2804-3871 doi:10.24072/pcjournal.164 2804-3871 https://doaj.org/article/bcddf1275bf8457c843fb93901a7d106 |
op_doi |
https://doi.org/10.24072/pcjournal.164 |
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Peer Community Journal |
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2 |
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1782332077377585152 |