Phylogenetic analysis of the genus Laparocerus, with comments on colonisation and diversification in Macaronesia (Coleoptera, Curculionidae, Entiminae)

The flightless Entiminae weevil genus Laparocerus is the species-richest genus, with 237 species and subspecies, inhabiting Macaronesia (Madeira archipelago, Selvagens, Canary Islands) and the continental ‘Macaronesian enclave’ in Morocco (one single polytypic species). This is the second contributi...

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Published in:ZooKeys
Main Authors: Antonio Machado, Eduardo Rodríguez-Expósito, Mercedes López, Mariano Hernández
Format: Article in Journal/Newspaper
Language:English
Published: Pensoft Publishers 2017
Subjects:
Online Access:https://doi.org/10.3897/zookeys.651.10097
https://doaj.org/article/859cc11ec8404e0c92102f0f50c3a234
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spelling ftdoajarticles:oai:doaj.org/article:859cc11ec8404e0c92102f0f50c3a234 2023-05-15T18:45:48+02:00 Phylogenetic analysis of the genus Laparocerus, with comments on colonisation and diversification in Macaronesia (Coleoptera, Curculionidae, Entiminae) Antonio Machado Eduardo Rodríguez-Expósito Mercedes López Mariano Hernández 2017-02-01T00:00:00Z https://doi.org/10.3897/zookeys.651.10097 https://doaj.org/article/859cc11ec8404e0c92102f0f50c3a234 EN eng Pensoft Publishers http://zookeys.pensoft.net/articles.php?id=10097 http://zookeys.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_pdf&item_id=10097 http://zookeys.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_xml&item_id=10097 https://doaj.org/toc/1313-2989 https://doaj.org/toc/1313-2970 doi:10.3897/zookeys.651.10097 1313-2970 1313-2989 https://doaj.org/article/859cc11ec8404e0c92102f0f50c3a234 ZooKeys, Vol 651, Iss , Pp 1-77 (2017) Zoology QL1-991 article 2017 ftdoajarticles https://doi.org/10.3897/zookeys.651.10097 2022-12-31T11:38:20Z The flightless Entiminae weevil genus Laparocerus is the species-richest genus, with 237 species and subspecies, inhabiting Macaronesia (Madeira archipelago, Selvagens, Canary Islands) and the continental ‘Macaronesian enclave’ in Morocco (one single polytypic species). This is the second contribution to gain insight of the genus and assist in its systematic revision with a mitochondrial phylogenetic analysis. It centres on the Canarian clade, adding the 12S rRNA gene to the combined set of COII and 16S rRNA used in our first contribution on the Madeiran clade (here re-analysed). The nuclear 28S rRNA was also used to produce an additional 4-gene tree to check coherency with the 3-gene tree. A total of 225 taxa (95%) has been sequenced, mostly one individual per taxa. Plausible explanations for incoherent data (mitochondrial introgressions, admixture, incomplete lineage sorting, etc.) are discussed for each of the monophyletic subclades that are coincident with established subgenera, or are restructured or newly described. The overall mean genetic divergence (p-distance) among species is 8.2%; the mean divergence within groups (subgenera) ranks from 2.9 to 7.0% (average 4.6%), and between groups, from 5.4% to 12.0% (average 9.2%). A trustful radiation event within a young island (1.72 Ma) was used to calibrate and produce a chronogram using the software RelTime. These results confirm the monophyly of both the Madeiran (36 species and subspecies) and the Canarian (196 species and subspecies) clades, which originated ca. 11.2 Ma ago, and started to radiate in their respective archipelagos ca. 8.5 and 7.7 Ma ago. The Madeiran clade seems to have begun in Porto Santo, and from there it jumped to the Desertas and to Madeira, with additional radiations. The Canarian clade shows a sequential star-shape radiation process generating subclades with a clear shift from East to West in coherence with the decreasing age of the islands. Laparocerus garretai from the Selvagens belongs to a Canarian subclade, and Laparocerus ... Article in Journal/Newspaper Young Island Directory of Open Access Journals: DOAJ Articles Young Island ENVELOPE(162.400,162.400,-66.417,-66.417) ZooKeys 651 1 77
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Zoology
QL1-991
spellingShingle Zoology
QL1-991
Antonio Machado
Eduardo Rodríguez-Expósito
Mercedes López
Mariano Hernández
Phylogenetic analysis of the genus Laparocerus, with comments on colonisation and diversification in Macaronesia (Coleoptera, Curculionidae, Entiminae)
topic_facet Zoology
QL1-991
description The flightless Entiminae weevil genus Laparocerus is the species-richest genus, with 237 species and subspecies, inhabiting Macaronesia (Madeira archipelago, Selvagens, Canary Islands) and the continental ‘Macaronesian enclave’ in Morocco (one single polytypic species). This is the second contribution to gain insight of the genus and assist in its systematic revision with a mitochondrial phylogenetic analysis. It centres on the Canarian clade, adding the 12S rRNA gene to the combined set of COII and 16S rRNA used in our first contribution on the Madeiran clade (here re-analysed). The nuclear 28S rRNA was also used to produce an additional 4-gene tree to check coherency with the 3-gene tree. A total of 225 taxa (95%) has been sequenced, mostly one individual per taxa. Plausible explanations for incoherent data (mitochondrial introgressions, admixture, incomplete lineage sorting, etc.) are discussed for each of the monophyletic subclades that are coincident with established subgenera, or are restructured or newly described. The overall mean genetic divergence (p-distance) among species is 8.2%; the mean divergence within groups (subgenera) ranks from 2.9 to 7.0% (average 4.6%), and between groups, from 5.4% to 12.0% (average 9.2%). A trustful radiation event within a young island (1.72 Ma) was used to calibrate and produce a chronogram using the software RelTime. These results confirm the monophyly of both the Madeiran (36 species and subspecies) and the Canarian (196 species and subspecies) clades, which originated ca. 11.2 Ma ago, and started to radiate in their respective archipelagos ca. 8.5 and 7.7 Ma ago. The Madeiran clade seems to have begun in Porto Santo, and from there it jumped to the Desertas and to Madeira, with additional radiations. The Canarian clade shows a sequential star-shape radiation process generating subclades with a clear shift from East to West in coherence with the decreasing age of the islands. Laparocerus garretai from the Selvagens belongs to a Canarian subclade, and Laparocerus ...
format Article in Journal/Newspaper
author Antonio Machado
Eduardo Rodríguez-Expósito
Mercedes López
Mariano Hernández
author_facet Antonio Machado
Eduardo Rodríguez-Expósito
Mercedes López
Mariano Hernández
author_sort Antonio Machado
title Phylogenetic analysis of the genus Laparocerus, with comments on colonisation and diversification in Macaronesia (Coleoptera, Curculionidae, Entiminae)
title_short Phylogenetic analysis of the genus Laparocerus, with comments on colonisation and diversification in Macaronesia (Coleoptera, Curculionidae, Entiminae)
title_full Phylogenetic analysis of the genus Laparocerus, with comments on colonisation and diversification in Macaronesia (Coleoptera, Curculionidae, Entiminae)
title_fullStr Phylogenetic analysis of the genus Laparocerus, with comments on colonisation and diversification in Macaronesia (Coleoptera, Curculionidae, Entiminae)
title_full_unstemmed Phylogenetic analysis of the genus Laparocerus, with comments on colonisation and diversification in Macaronesia (Coleoptera, Curculionidae, Entiminae)
title_sort phylogenetic analysis of the genus laparocerus, with comments on colonisation and diversification in macaronesia (coleoptera, curculionidae, entiminae)
publisher Pensoft Publishers
publishDate 2017
url https://doi.org/10.3897/zookeys.651.10097
https://doaj.org/article/859cc11ec8404e0c92102f0f50c3a234
long_lat ENVELOPE(162.400,162.400,-66.417,-66.417)
geographic Young Island
geographic_facet Young Island
genre Young Island
genre_facet Young Island
op_source ZooKeys, Vol 651, Iss , Pp 1-77 (2017)
op_relation http://zookeys.pensoft.net/articles.php?id=10097
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https://doaj.org/toc/1313-2970
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