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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ftcirad:oai:agritrop.cirad.fr:601907 2023-06-11T04:10:11+02:00 Within and among population differences in cuticular hydrocarbons in the seabird tick Ixodes uriae Dupraz, Marlene Leroy, Chloe Thórarinsson, Thorkell Lindberg D'Ettorre, Patrizia McCoy, Karen D. 2022 text http://agritrop.cirad.fr/601907/ http://agritrop.cirad.fr/601907/1/601907.pdf https://doi.org/10.24072/pcjournal.164 eng eng http://agritrop.cirad.fr/601907/ Within and among population differences in cuticular hydrocarbons in the seabird tick Ixodes uriae. Dupraz Marlene, Leroy Chloe, Thórarinsson Thorkell Lindberg, D'Ettorre Patrizia, McCoy Karen D. 2022. Peer Community Journal, 2:e51, 15 p.https://doi.org/10.24072/pcjournal.164 <https://doi.org/10.24072/pcjournal.164> http://agritrop.cirad.fr/601907/1/601907.pdf cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ Peer Community Journal L20 - Écologie animale L60 - Taxonomie et géographie animales Hydrocarbure Ixodes Écologie des populations http://aims.fao.org/aos/agrovoc/c_3719 http://aims.fao.org/aos/agrovoc/c_4028 http://aims.fao.org/aos/agrovoc/c_37336 article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion 2022 ftcirad https://doi.org/10.24072/pcjournal.164 2023-05-30T22:45:22Z 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 CIRAD: Agritrop (Centre de coopération internationale en recherche agronomique pour le développement) Peer Community Journal 2 |
institution |
Open Polar |
collection |
CIRAD: Agritrop (Centre de coopération internationale en recherche agronomique pour le développement) |
op_collection_id |
ftcirad |
language |
English |
topic |
L20 - Écologie animale L60 - Taxonomie et géographie animales Hydrocarbure Ixodes Écologie des populations http://aims.fao.org/aos/agrovoc/c_3719 http://aims.fao.org/aos/agrovoc/c_4028 http://aims.fao.org/aos/agrovoc/c_37336 |
spellingShingle |
L20 - Écologie animale L60 - Taxonomie et géographie animales Hydrocarbure Ixodes Écologie des populations http://aims.fao.org/aos/agrovoc/c_3719 http://aims.fao.org/aos/agrovoc/c_4028 http://aims.fao.org/aos/agrovoc/c_37336 Dupraz, Marlene Leroy, Chloe 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 |
L20 - Écologie animale L60 - Taxonomie et géographie animales Hydrocarbure Ixodes Écologie des populations http://aims.fao.org/aos/agrovoc/c_3719 http://aims.fao.org/aos/agrovoc/c_4028 http://aims.fao.org/aos/agrovoc/c_37336 |
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, Marlene Leroy, Chloe Thórarinsson, Thorkell Lindberg D'Ettorre, Patrizia McCoy, Karen D. |
author_facet |
Dupraz, Marlene Leroy, Chloe Thórarinsson, Thorkell Lindberg D'Ettorre, Patrizia McCoy, Karen D. |
author_sort |
Dupraz, Marlene |
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 |
publishDate |
2022 |
url |
http://agritrop.cirad.fr/601907/ http://agritrop.cirad.fr/601907/1/601907.pdf https://doi.org/10.24072/pcjournal.164 |
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 |
op_relation |
http://agritrop.cirad.fr/601907/ Within and among population differences in cuticular hydrocarbons in the seabird tick Ixodes uriae. Dupraz Marlene, Leroy Chloe, Thórarinsson Thorkell Lindberg, D'Ettorre Patrizia, McCoy Karen D. 2022. Peer Community Journal, 2:e51, 15 p.https://doi.org/10.24072/pcjournal.164 <https://doi.org/10.24072/pcjournal.164> http://agritrop.cirad.fr/601907/1/601907.pdf |
op_rights |
cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.24072/pcjournal.164 |
container_title |
Peer Community Journal |
container_volume |
2 |
_version_ |
1768384456840708096 |