Tags

Type your tag names separated by a space and hit enter

MtDNA phylogeny and biogeography of Copelatinae, a highly diverse group of tropical diving beetles (Dytiscidae).
Mol Phylogenet Evol. 2004 Sep; 32(3):866-80.MP

Abstract

Copelatinae is a diverse lineage of diving beetles (Dytiscidae) frequently encountered in wet tropical and subtropical forests, but phylogenetic relationships are very poorly understood. We performed a phylogenetic and biogeographic analysis of this worldwide distributed group based on 50 species including a representative sample of major taxonomic groups and biogeographical regions. DNA sequences were obtained for the mitochondrial genes cytochrome oxidase I, cytochrome b, and 16S rRNA, for a total of 1575 aligned nucleotide positions. We found Copelatinae to be monophyletic, placed in a derived position and not sister to all remaining dytiscids, as had been suggested by earlier authors. The largest genus, Copelatus with some 460 known species was paraphyletic with respect to the smaller genera Lacconectus and Aglymbus. Among the major lineages of Copelatus, the subgenus Papuadytes was consistently recovered as sister to all other species (including Lacconectus and Aglymbus) with the possible exception of two western Palearctic taxa. We propose that the subgenus Papuadytes is removed from Copelatus and assigned generic status. Likewise, the two western Palearctic Copelatus are removed from this genus, and assigned the available genus name Liopterus. Our best phylogenetic hypothesis retrieved Afrotropical and New Guinean plus Australian species of Copelatus as monophyletic. Asian species were paraphyletic with respect to a species from Sulawesi which grouped with the species from New Guinea. Asian species were also paraphyletic with respect to Oriental Lacconectus, which was grouped with a clade of Neotropical species. Neotropical Copelatus form at least two separate lineages. The biogeographical evolution of Papuadytes is consistent with the relative age of the landmasses in the Austral region. Basal species are Australian, and successively derived ones are from New Caledonia and New Guinea. One species apparently dispersed from New Caledonia to China. Assuming a molecular clock and using a standard calibration of 2% divergence/MY the origin of Copelatinae is estimated to be between 85 and 95 MY.

Authors+Show Affiliations

Department of Entomology, The Natural History Museum, Cromwell Road, London SW7 5BD, UK. michb@nhm.ac.ukNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15288062

Citation

Balke, Michael, et al. "MtDNA Phylogeny and Biogeography of Copelatinae, a Highly Diverse Group of Tropical Diving Beetles (Dytiscidae)." Molecular Phylogenetics and Evolution, vol. 32, no. 3, 2004, pp. 866-80.
Balke M, Ribera I, Vogler AP. MtDNA phylogeny and biogeography of Copelatinae, a highly diverse group of tropical diving beetles (Dytiscidae). Mol Phylogenet Evol. 2004;32(3):866-80.
Balke, M., Ribera, I., & Vogler, A. P. (2004). MtDNA phylogeny and biogeography of Copelatinae, a highly diverse group of tropical diving beetles (Dytiscidae). Molecular Phylogenetics and Evolution, 32(3), 866-80.
Balke M, Ribera I, Vogler AP. MtDNA Phylogeny and Biogeography of Copelatinae, a Highly Diverse Group of Tropical Diving Beetles (Dytiscidae). Mol Phylogenet Evol. 2004;32(3):866-80. PubMed PMID: 15288062.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - MtDNA phylogeny and biogeography of Copelatinae, a highly diverse group of tropical diving beetles (Dytiscidae). AU - Balke,Michael, AU - Ribera,Ignacio, AU - Vogler,Alfried P, PY - 2003/09/24/received PY - 2004/03/02/revised PY - 2004/8/4/pubmed PY - 2005/3/5/medline PY - 2004/8/4/entrez SP - 866 EP - 80 JF - Molecular phylogenetics and evolution JO - Mol. Phylogenet. Evol. VL - 32 IS - 3 N2 - Copelatinae is a diverse lineage of diving beetles (Dytiscidae) frequently encountered in wet tropical and subtropical forests, but phylogenetic relationships are very poorly understood. We performed a phylogenetic and biogeographic analysis of this worldwide distributed group based on 50 species including a representative sample of major taxonomic groups and biogeographical regions. DNA sequences were obtained for the mitochondrial genes cytochrome oxidase I, cytochrome b, and 16S rRNA, for a total of 1575 aligned nucleotide positions. We found Copelatinae to be monophyletic, placed in a derived position and not sister to all remaining dytiscids, as had been suggested by earlier authors. The largest genus, Copelatus with some 460 known species was paraphyletic with respect to the smaller genera Lacconectus and Aglymbus. Among the major lineages of Copelatus, the subgenus Papuadytes was consistently recovered as sister to all other species (including Lacconectus and Aglymbus) with the possible exception of two western Palearctic taxa. We propose that the subgenus Papuadytes is removed from Copelatus and assigned generic status. Likewise, the two western Palearctic Copelatus are removed from this genus, and assigned the available genus name Liopterus. Our best phylogenetic hypothesis retrieved Afrotropical and New Guinean plus Australian species of Copelatus as monophyletic. Asian species were paraphyletic with respect to a species from Sulawesi which grouped with the species from New Guinea. Asian species were also paraphyletic with respect to Oriental Lacconectus, which was grouped with a clade of Neotropical species. Neotropical Copelatus form at least two separate lineages. The biogeographical evolution of Papuadytes is consistent with the relative age of the landmasses in the Austral region. Basal species are Australian, and successively derived ones are from New Caledonia and New Guinea. One species apparently dispersed from New Caledonia to China. Assuming a molecular clock and using a standard calibration of 2% divergence/MY the origin of Copelatinae is estimated to be between 85 and 95 MY. SN - 1055-7903 UR - https://www.unboundmedicine.com/medline/citation/15288062/MtDNA_phylogeny_and_biogeography_of_Copelatinae_a_highly_diverse_group_of_tropical_diving_beetles__Dytiscidae__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S105579030400106X DB - PRIME DP - Unbound Medicine ER -