Phylogeny of Living Parasitic Lampreys (Petromyzontiformes) Based on Morphological Data

@article{Gill2003PhylogenyOL,
  title={Phylogeny of Living Parasitic Lampreys (Petromyzontiformes) Based on Morphological Data},
  author={Howard S. Gill and Claude B Renaud and François Chapleau and Richard L. Mayden and Ian C. Potter},
  journal={Copeia},
  year={2003},
  volume={2003},
  pages={687 - 703}
}
Abstract Relationships among the 18 extant species of parasitic lamprey (Petromyzontiformes) were determined using a cladistic analysis of 32 mainly morphological characters. Because previous analyses support all known fossils as phylogenetically older or the same age as living lampreys, a composite agnathan fossil was used as an outgroup. A consensus of three equally parsimonious trees revealed a trichotomy between a monophyletic northern hemisphere clade and the southern hemisphere genera… Expand
Novel Relationships among Lampreys (Petromyzontiformes) Revealed by a Taxonomically Comprehensive Molecular Data Set
TLDR
Monophyly was supported for the multi-specific genera Entosphenus, Eudontomyzon, Ichthyomyzon), Lampetra, and Lethenteron, and the family Mordaciidae was resolved as two divergent lineages at the base of the tree. Expand
The taxonomy, phylogeny and distribution of lampreys
TLDR
The phylogenetic relationships of the lampreys were similar in most respects to those obtained by subjecting molecular data for those species to Bayesian analyses, however, in contrast to the results of morphological analyses, the genera Eudontomyzon and Lampetra were not monophyletic when using molecular analyses. Expand
The complete mitogenome of two Australian lampreys: mordacia mordax and mordacia praecox
TLDR
The recovered topology strongly supported the hypothesis that lampreys separated from hagfishes about 409 MYA, and that lamprey divergence involved the early radiation of Mordaciidae followed by the monophyletic divergence of Geotriidae plus Petromyzontidae about 85 MYA. Expand
The gular pouch in northern hemisphere parasitic lampreys (Petromyzontidae)
TLDR
The hypothesis is that these lipids act as an energy source to sustain these two anadromous species during their protracted spawning migration, as the two lumen gular pouch, interpreted as the derived condition, identifies a major clade of northern-hemisphere lam- preys. Expand
A mitochondrial multigene approach contributing to the systematics of the brook and river lampreys and the phylogenetic position of Eudontomyzon mariae
TLDR
The utility of 11 mitochondrial gene segments is examined to discriminate the closely related members of the European species pair Lamp- etra fluviatilis and Lampetra planeri to identify fast-evolving genes in the mtDNA that might allow a dis- crimination of pair members. Expand
The evolutionary ecology of lampreys (Petromyzontiformes)
TLDR
It is argued that at least some paired species of lampreys do not comprise two distinct evolutionary lineages; rather, that non-parasitic lampreys represent one extreme in a continuum of life history variation expressed by a parasitic species. Expand
Morphology-based taxonomic re-assessment of the Arctic lamprey, Lethenteron camtschaticum (Tilesius, 1811) and taxonomic position of other members of the genus
TLDR
An in-depth study of large samples of nonparasitic lamprey adults from Japan and Sakhalin Island is needed to determine whether the lower trunk myomere from these areas represent one or more undescribed species, or Le. Expand
Time Scale for Cyclostome Evolution Inferred with a Phylogenetic Diagnosis of Hagfish and Lamprey cDNA Sequences
TLDR
The evolutionary configuration indicates that Myxiniformes and Petromyzoniformes diverged shortly after the common ancestor of cyclostomes split from the future gnathostome lineage. Expand
Taxonomy and molecular phylogeny of Lethenteron lampreys in eastern Eurasia
TLDR
Results suggest that L. reissneri in the upper Amur basin is likely to be the same taxonomic entity as L. kessleri reported from eastern Eurasia, and the direction of life-history evolution presumed from the most parsimonious character reconstruction on the molecular tree was inconsistent with the previous hypothesis that nonparasitic species arise from parasitic species. Expand
The evolution of lamprey (Petromyzontida) life history and the origin of metamorphosis
TLDR
A review synthesizes findings and concludes that the ancestral lamprey life cycle followed a direct development, suggesting that the larval period was short and relatively limited if present at all, but that the juvenile included modern larval traits. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 39 REFERENCES
Phylogeny of the lamprey genus Lampetra inferred from mitochondrial cytochrome b and ND3 gene sequences
TLDR
Mitochrondrial DNA analysis resolved many previously unanswered questions concerning the phylogeny of the lamprey genus Lampetra (comprising the subgenera Entosphenus, Lethenteron, and Lampetras) using rates of molecular evolution estimated in other fish taxa. Expand
Adaptive Radiation of Lampreys
TLDR
The amino acid sequences of intestinal molecules in different lamprey taxa support the view that the lampreys are monophyletic and that polyploidy occurred early in or just prior to their evolution. Expand
The Petromyzoniformes with particular reference to paired species
TLDR
Significant differences have been found between the larvae of nonparasitic lampreys and those of their parasitic ancestor in such features as the number of oocytes, trunk myomeres, and size at the onset of metamorphosis. Expand
The taxonomy of the Lampreys Geotria and Mordacia and their distribution in Australia
TLDR
A comparison of anatomical features indicates that living lampreys (Petromyzonidae) are best separated into three subfamilies: Petromyzoninae to contain all Northern Hemisphere genera, Geotriinae for Geotria, and Mordaciinee for Mordacia. Expand
The Biology of Australian Lampreys
TLDR
The distinctive characters of Ceotria and Mordacia support the view that these two genera are appropriately placed in different families (Geotriidae and Mordaciidae), and the results of previous studies on individual Australian lampreys are discussed. Expand
A proposal for the functional and phylogenetic significance of differences in the dentition of lampreys (Agnatha: Petromyzontiformes)
TLDR
It is concluded that blood-feeding preceded flesh-feeding in ‘modern’ lampreys; endemic freshwater parasitic species typically ingest blood; the ability to feed on flesh developed in populations which had access to estuarine and marine hosts; and pre-Tertiary forms resembling contemporary lehthyomyzon unicuspsis could have given rise independently to both of the divergent and specialized genera of Southern Hemisphere lampreys. Expand
Redescription of Lampetra ayresii (Günther) of Western North America, a Species of Lamprey (Petromyzontidae) Distinct from Lampetra fluviatilis (Linnaeus) of Europe
TLDR
A neotype is designated for Lampetra ayresii (Gunther), a species of parasitic river lamprey endemic to western North America that is redescribed on the basis of material from off the Skeena River, British Columbia, to San Francisco Bay, California. Expand
Lampetra macrostoma, a New Species of Freshwater Parasitic Lamprey from the West Coast of Canada
TLDR
The new species has been discovered in two lakes on Vancouver Island, British Columbia, Canada, where it attacks large numbers of resident salmonids and poses a definite threat to freshwater fishes. Expand
A new parasitic species of the holarctic lamprey genus Entosphenus Gill,1862 (Petromyzonidae) from Klamath River,in California and Oregon.
TLDR
A new parasitic lamprey is described from 29 metamorphosed specimens in feeding stage and is easily separable by its functional intestinal tract and strong dentition from the three nonparasitic species: Entosphenus folletti, E. hubbsi, and E. lethophagus. Expand
Conservation status of Northern Hemisphere lampreys (Petromyzontidae)
Among the 34 nominal lamprey species in the Northern Hemisphere, ten are endangered; nine are vulnerable at least in part of their range, and one is extinct. The major cause is habitat degradationExpand
...
1
2
3
4
...