Phylogeny of the lice (Insecta, Phthiraptera) inferred from small subunit rRNA

Barker, S. C., Whiting, M., Johnson, K. P. and Murrell, A. (2003) Phylogeny of the lice (Insecta, Phthiraptera) inferred from small subunit rRNA. Zoologica Scripta, 32 5: 407-414. doi:10.1046/j.1463-6409.2003.00120.x


Author Barker, S. C.
Whiting, M.
Johnson, K. P.
Murrell, A.
Title Phylogeny of the lice (Insecta, Phthiraptera) inferred from small subunit rRNA
Journal name Zoologica Scripta   Check publisher's open access policy
ISSN 0300-3256
Publication date 2003-01-01
Sub-type Article (original research)
DOI 10.1046/j.1463-6409.2003.00120.x
Open Access Status Not yet assessed
Volume 32
Issue 5
Start page 407
End page 414
Total pages 8
Place of publication Oxford, UK
Publisher Blackwell Science
Language eng
Subject C1
270501 Animal Systematics, Taxonomy and Phylogeny
780105 Biological sciences
Abstract There has been much argument about the phylogenetic relationships of the four suborders of lice (Insecta: Phthiraptera). Lyal's study of the morphology of lice indicated that chewing/biting lice (Mallophaga) are paraphyletic with respect to sucking lice (Anoplura). To test this hypothesis we inferred the phylogeny of 33 species of lice from small subunit (SSU) rRNA sequences (18S rRNA). Liposcelis sp. from the Liposcelididae (Psocoptera) was used for outgroup reference. Phylogenetic relationships among the four suborders of lice inferred from these sequences were the same as those inferred from morphology. The Amblycera is apparently the sister-group to all other lice whereas the Rhynchophthirina is apparently sister to the Anoplura; these two suborders are sister to the Ischnocera, i.e. (Amblycera (Ischnocera (Anoplura, Rhynchophthirina))). Thus, the Mallophaga (Amblycera, Ischnocera, Rhynchophthirina) is apparently paraphyletic with respect to the Anoplura. Our analyses also provide evidence that: (i) each of the three suborders of lice that are well represented in our study (the Amblycera, Ischnocera, and Anoplura) are monophyletic; (ii) the Boopiidae is monophyletic; (iii) the genera Heterodoxus and Latumcephalum (Boopiidae) are more closely related to one another than either is to the genus Boopia (also Boopiidae); (iv) the Ricinidae and Laemobothridae may be sister-taxa; (v) the Philopteridae may be paraphyletic with respect to the Trichodectidae; (vi) the genera Pediculus and Pthirus are more closely related to each other than either is to the genus Pedicinus ; and (vii) in contrast to published data for mitochondrial genes, the rates of nucleotide substitution in the SSU rRNA of lice are not higher than those of other insects, nor do substitution rates in the suborders differ substantially from one another.
Keyword Zoology
Parasitic Psocodea
Mitochondrial-dna
Sequences
Classification
Ischnocera
Evolution
Coevolution
Goniodidae
Anoplura
Position
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 05:39:41 EST