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Molecular systematics of Goniodidae (Insecta: Phthiraptera)
K P Johnson1, R J Adams, D H Clayton
1Illinois Natural History Survey, Champaign 61820, USA.
The Journal of Parasitology
|September 6, 2001
Summary
Phylogenetic analysis of avian feather lice (Ischnocera) clarifies family Goniodidae relationships. DNA sequence data support a restricted Goniodidae, but reveal paraphyly in traditional genera and highlight biogeography
Area of Science:
- Zoology
- Entomology
- Evolutionary Biology
Background:
- Phylogenetic relationships within avian feather lice (Phthiraptera: Ischnocera) are complex.
- The family Goniodidae is often considered distinct but requires further phylogenetic investigation.
Purpose of the Study:
- To investigate the higher-level phylogenetic relationships of the avian feather louse family Goniodidae.
- To clarify the monophyly and taxonomic status of Goniodidae within Ischnocera using molecular data.
Main Methods:
- Parsimony and likelihood analyses were employed.
- Nuclear and mitochondrial DNA sequences were utilized for phylogenetic reconstruction.
Main Results:
- DNA data support a monophyletic Goniodidae under a restricted definition, but this challenges the monophyly of Philopteridae.
- The New World genus Chelopistes is found to be sister to Oxylipeurus, not closely related to other Goniodidae members.
- Within Goniodidae, genera cluster based on host orders (Galliformes and Columbiformes), but traditional genera like Coloceras and Physconelloides appear paraphyletic.
Conclusions:
- A restricted Goniodidae is supported, necessitating reevaluation of Philopteridae.
- Coevolutionary history is shaped by both host associations and biogeographical factors.
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