Frequent discordance between morphology and mitochondrial DNA in a species group of European water beetles (Coleoptera: Dytiscidae)
The Hydroporus memnonius species group includes both widespread and range restricted diving beetle taxa in the western Palaearctic, some of which have been divided into a number of geographical subspecies. Of these, Hydroporus necopinatus is distributed in the far west of Europe, from central Spain...
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| Format: | Article |
| Language: | English |
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PeerJ Inc.
2017-03-01
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| Series: | PeerJ |
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| Online Access: | https://peerj.com/articles/3076.pdf |
| _version_ | 1797417770659348480 |
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| author | David T. Bilton Lucy Turner Garth N. Foster |
| author_facet | David T. Bilton Lucy Turner Garth N. Foster |
| author_sort | David T. Bilton |
| collection | DOAJ |
| description | The Hydroporus memnonius species group includes both widespread and range restricted diving beetle taxa in the western Palaearctic, some of which have been divided into a number of geographical subspecies. Of these, Hydroporus necopinatus is distributed in the far west of Europe, from central Spain to southern Britain, and has been split into three subspecies, occurring in Iberia (necopinatus sst.), France (robertorum) and England (roni) respectively—the last of these being a rare example of an insect taxon apparently endemic to northern Europe. Here we explore inter-relationships between populations and subspecies of H. necopinatus and related members of the Hydroporus melanarius subgroup, using mitochondrial COI sequence data. We reveal widespread discordance between mitochondrial DNA sequence variation and morphology in areas where H. necopinatus and H. melanarius come into contact, consistent with historical introgressive hybridization between these taxa. In light of this discordance, the lack of clear genetic divergence between H. necopinatus subspecies, and the fact that both robertorum and roni are morphologically intermediate between H. necopinatus sstr. and H. melanarius, we suggest that these taxa may be of hybridogenic origin, rather than representing discrete evolutionary lineages. |
| first_indexed | 2024-03-09T06:23:25Z |
| format | Article |
| id | doaj.art-076ee42bcdcf487584dd9f6491876859 |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T06:23:25Z |
| publishDate | 2017-03-01 |
| publisher | PeerJ Inc. |
| record_format | Article |
| series | PeerJ |
| spelling | doaj.art-076ee42bcdcf487584dd9f64918768592023-12-03T11:28:37ZengPeerJ Inc.PeerJ2167-83592017-03-015e307610.7717/peerj.3076Frequent discordance between morphology and mitochondrial DNA in a species group of European water beetles (Coleoptera: Dytiscidae)David T. Bilton0Lucy Turner1Garth N. Foster2Marine Biology & Ecology Research Centre, University of Plymouth, Plymouth, United KingdomMarine Biology & Ecology Research Centre, University of Plymouth, Plymouth, United KingdomAquatic Coleoptera Conservation Trust, Ayr, ScotlandThe Hydroporus memnonius species group includes both widespread and range restricted diving beetle taxa in the western Palaearctic, some of which have been divided into a number of geographical subspecies. Of these, Hydroporus necopinatus is distributed in the far west of Europe, from central Spain to southern Britain, and has been split into three subspecies, occurring in Iberia (necopinatus sst.), France (robertorum) and England (roni) respectively—the last of these being a rare example of an insect taxon apparently endemic to northern Europe. Here we explore inter-relationships between populations and subspecies of H. necopinatus and related members of the Hydroporus melanarius subgroup, using mitochondrial COI sequence data. We reveal widespread discordance between mitochondrial DNA sequence variation and morphology in areas where H. necopinatus and H. melanarius come into contact, consistent with historical introgressive hybridization between these taxa. In light of this discordance, the lack of clear genetic divergence between H. necopinatus subspecies, and the fact that both robertorum and roni are morphologically intermediate between H. necopinatus sstr. and H. melanarius, we suggest that these taxa may be of hybridogenic origin, rather than representing discrete evolutionary lineages.https://peerj.com/articles/3076.pdfColeopteraDytiscidaeTaxonomyHydroporusIntrogressionmtDNA |
| spellingShingle | David T. Bilton Lucy Turner Garth N. Foster Frequent discordance between morphology and mitochondrial DNA in a species group of European water beetles (Coleoptera: Dytiscidae) PeerJ Coleoptera Dytiscidae Taxonomy Hydroporus Introgression mtDNA |
| title | Frequent discordance between morphology and mitochondrial DNA in a species group of European water beetles (Coleoptera: Dytiscidae) |
| title_full | Frequent discordance between morphology and mitochondrial DNA in a species group of European water beetles (Coleoptera: Dytiscidae) |
| title_fullStr | Frequent discordance between morphology and mitochondrial DNA in a species group of European water beetles (Coleoptera: Dytiscidae) |
| title_full_unstemmed | Frequent discordance between morphology and mitochondrial DNA in a species group of European water beetles (Coleoptera: Dytiscidae) |
| title_short | Frequent discordance between morphology and mitochondrial DNA in a species group of European water beetles (Coleoptera: Dytiscidae) |
| title_sort | frequent discordance between morphology and mitochondrial dna in a species group of european water beetles coleoptera dytiscidae |
| topic | Coleoptera Dytiscidae Taxonomy Hydroporus Introgression mtDNA |
| url | https://peerj.com/articles/3076.pdf |
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