Gene expression response to a nematode parasite in novel and native eel hosts
Invasive parasites are involved in population declines of new host species worldwide. The high susceptibilities observed in many novel hosts have been attributed to the lack of protective immunity to the parasites which native hosts acquired during their shared evolution. We experimentally infected...
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ftleibnizopen:oai:oai.leibnizopen.de:dxY5iIcBdbrxVwz6Jf9R 2023-06-06T11:43:28+02:00 Gene expression response to a nematode parasite in novel and native eel hosts Bracamonte, Seraina Johnston, Paul R. Monaghan, Michael T. Knopf, Klaus 2019 https://repository.publisso.de/resource/frl:6419034 https://doi.org/10.1002/ece3.5728 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6912882/ https://doi.org/10.5061/dryad.s1rn8pk3h eng eng https://creativecommons.org/licenses/by/4.0/ Ecology and evolution, 9(23):13069-84 host‐parasite interaction emerging infectious disease Anguilla anguilla comparative transcriptomics Anguilla japonica Anguillicola crassus 2019 ftleibnizopen https://doi.org/10.1002/ece3.572810.5061/dryad.s1rn8pk3h 2023-04-16T23:05:55Z Invasive parasites are involved in population declines of new host species worldwide. The high susceptibilities observed in many novel hosts have been attributed to the lack of protective immunity to the parasites which native hosts acquired during their shared evolution. We experimentally infected Japanese eels (Anguilla japonica) and European eels (Anguilla anguilla) with Anguillicola crassus, a nematode parasite that is native to the Japanese eel and invasive in the European eel. We inferred gene expression changes in head kidney tissue from both species, using RNA‐seq data to determine the responses at two time points during the early stages of infection (3 and 23 days postinfection). At both time points, the novel host modified the expression of a larger and functionally more diverse set of genes than the native host. Strikingly, the native host regulated immune gene expression only at the earlier time point and to a small extent while the novel host regulated these genes at both time points. A low number of differentially expressed immune genes, especially in the native host, suggest that a systemic immune response was of minor importance during the early stages of infection. Transcript abundance of genes involved in cell respiration was reduced in the novel host which may affect its ability to cope with harsh conditions and energetically demanding activities. The observed gene expression changes in response to a novel parasite that we observed in a fish follow a general pattern observed in amphibians and mammals, and suggest that the disruption of physiological processes, rather than the absence of an immediate immune response, is responsible for the higher susceptibility of the novel host. Other/Unknown Material Anguilla anguilla European eel LeibnizOpen (The Leibniz Association) |
institution |
Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
host‐parasite interaction emerging infectious disease Anguilla anguilla comparative transcriptomics Anguilla japonica Anguillicola crassus |
spellingShingle |
host‐parasite interaction emerging infectious disease Anguilla anguilla comparative transcriptomics Anguilla japonica Anguillicola crassus Bracamonte, Seraina Johnston, Paul R. Monaghan, Michael T. Knopf, Klaus Gene expression response to a nematode parasite in novel and native eel hosts |
topic_facet |
host‐parasite interaction emerging infectious disease Anguilla anguilla comparative transcriptomics Anguilla japonica Anguillicola crassus |
description |
Invasive parasites are involved in population declines of new host species worldwide. The high susceptibilities observed in many novel hosts have been attributed to the lack of protective immunity to the parasites which native hosts acquired during their shared evolution. We experimentally infected Japanese eels (Anguilla japonica) and European eels (Anguilla anguilla) with Anguillicola crassus, a nematode parasite that is native to the Japanese eel and invasive in the European eel. We inferred gene expression changes in head kidney tissue from both species, using RNA‐seq data to determine the responses at two time points during the early stages of infection (3 and 23 days postinfection). At both time points, the novel host modified the expression of a larger and functionally more diverse set of genes than the native host. Strikingly, the native host regulated immune gene expression only at the earlier time point and to a small extent while the novel host regulated these genes at both time points. A low number of differentially expressed immune genes, especially in the native host, suggest that a systemic immune response was of minor importance during the early stages of infection. Transcript abundance of genes involved in cell respiration was reduced in the novel host which may affect its ability to cope with harsh conditions and energetically demanding activities. The observed gene expression changes in response to a novel parasite that we observed in a fish follow a general pattern observed in amphibians and mammals, and suggest that the disruption of physiological processes, rather than the absence of an immediate immune response, is responsible for the higher susceptibility of the novel host. |
author |
Bracamonte, Seraina Johnston, Paul R. Monaghan, Michael T. Knopf, Klaus |
author_facet |
Bracamonte, Seraina Johnston, Paul R. Monaghan, Michael T. Knopf, Klaus |
author_sort |
Bracamonte, Seraina |
title |
Gene expression response to a nematode parasite in novel and native eel hosts |
title_short |
Gene expression response to a nematode parasite in novel and native eel hosts |
title_full |
Gene expression response to a nematode parasite in novel and native eel hosts |
title_fullStr |
Gene expression response to a nematode parasite in novel and native eel hosts |
title_full_unstemmed |
Gene expression response to a nematode parasite in novel and native eel hosts |
title_sort |
gene expression response to a nematode parasite in novel and native eel hosts |
publishDate |
2019 |
url |
https://repository.publisso.de/resource/frl:6419034 https://doi.org/10.1002/ece3.5728 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6912882/ https://doi.org/10.5061/dryad.s1rn8pk3h |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_source |
Ecology and evolution, 9(23):13069-84 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.572810.5061/dryad.s1rn8pk3h |
_version_ |
1767956010988732416 |