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Pattern of phylogenetic relationships among members of the tribe Melitaeini (Lepidoptera : Nymphalidae) inferred from mitochondrial DNA sequences
Tekijät: Wahlberg N, Zimmermann M
Kustantaja: ACADEMIC PRESS LTD
Julkaisuvuosi: 2000
Lehti:: Cladistics
Tietokannassa oleva lehden nimi: CLADISTICS-THE INTERNATIONAL JOURNAL OF THE WILLI HENNIG SOCIETY
Lehden akronyymi: CLADISTICS
Vuosikerta: 16
Numero: 4
Aloitussivu: 347
Lopetussivu: 363
Sivujen määrä: 17
ISSN: 0748-3007
DOI: https://doi.org/10.1006/clad.2000.0136
Tiivistelmä
We report a cladistic analysis of 77 butterfly species of the tribe Melitaeini (Lepidoptera: Nymphalidae) based on mitochondrial DNA gene sequences. We sequenced ca. 536 bp from the 16S ribosomal DNA (rDNA) and a 1422-bp sequence from the cytochrome oxidase I gene. Alignments are critical to statements of homology, especially when aligning rDNA sequences. We aligned the 16S sequences using conventional methods and direct optimization. We found that direct optimization of the sequences produced the best alignments and our preferred phylogenetic hypothesis. Our results suggest that many of the previously proposed genera are paraphyletic and we conclude that there are four monophyletic groups of species in our cladogram: the Euphydryas group, the Phyciodes group, the Chlosyne group, and the Melitaea group. The following genera are found to be paraphyletic: Castilia, Chlosyne, Didymaeformia, Eresia, Melitaea, and Thessalia. In addition, recognition of the monophyletic genera Cinclidia, Mellicta, and Telenassa would render other genera paraphyletic. Our phylogenetic hypothesis indicates that the melitaeines originated in the Nearctic and have colonized the Neotropics three times and the Palaearctic twice. (C) 2000 The Willi Hennig Society.
We report a cladistic analysis of 77 butterfly species of the tribe Melitaeini (Lepidoptera: Nymphalidae) based on mitochondrial DNA gene sequences. We sequenced ca. 536 bp from the 16S ribosomal DNA (rDNA) and a 1422-bp sequence from the cytochrome oxidase I gene. Alignments are critical to statements of homology, especially when aligning rDNA sequences. We aligned the 16S sequences using conventional methods and direct optimization. We found that direct optimization of the sequences produced the best alignments and our preferred phylogenetic hypothesis. Our results suggest that many of the previously proposed genera are paraphyletic and we conclude that there are four monophyletic groups of species in our cladogram: the Euphydryas group, the Phyciodes group, the Chlosyne group, and the Melitaea group. The following genera are found to be paraphyletic: Castilia, Chlosyne, Didymaeformia, Eresia, Melitaea, and Thessalia. In addition, recognition of the monophyletic genera Cinclidia, Mellicta, and Telenassa would render other genera paraphyletic. Our phylogenetic hypothesis indicates that the melitaeines originated in the Nearctic and have colonized the Neotropics three times and the Palaearctic twice. (C) 2000 The Willi Hennig Society.
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