Opening Pandora’s box: Clitellum in phylogeny and taxonomy of earthworms

@article{Pavlek2012OpeningPB,
  title={Opening Pandora’s box: Clitellum in phylogeny and taxonomy of earthworms},
  author={Tom{\'a}{\vs} Pavl{\'i}{\vc}ek and Yarin Hadid and Csaba Csuzdi},
  journal={Zoology in the Middle East},
  year={2012},
  volume={58},
  pages={31 - 46}
}
Abstract The solution to the current contradictions in earthworm taxonomy and phylogeny is a better understanding of the underlying speciation process. The analysis of size and distribution of clitellar segments and that of tubercula pubertatis in the model homoploid genus Lumbricus provides prima facie evidence for the occurrence of the intra-chromosomal autohomoploid hybridization (autohomoploid hybridization=hybridization without changing the ploidy level and taking place between parents… Expand
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References

SHOWING 1-10 OF 69 REFERENCES
Application of 16S, 18S rDNA and COI sequences in the molecular systematics of the earthworm family Lumbricidae (Annelida, Oligochaeta)
TLDR
Clear and consistent conclusions were formulated regarding the validity of the genera Octodrilus, Octolasion and Dendrobaena, where the patterns of the cladograms fit the species groupings by means of morphological and anatomical characters. Expand
Evolution and biogeography of megadriles (Annelida, Clitellata)
TLDR
The evolution of megadriles is characterized by numerous instances of convergence and remarkably slow speed, but speciation events in Megascolecidae and Eudrilidae were apparently very frequent. Expand
Are the sexual, somatic and genetic characters enough to solve nomenclatural problems in lumbricid taxonomy?
TLDR
This study concludes that the 16S rDNA and COI sequence fragments have a limited discriminatory value above the genus level and recommends soil ecologists are advised to provide the most accurate identification of the species used in their studies or at least a good description of the specimens collected. Expand
Additional duplicated Hox genes in the earthworm: Perionyx excavatus Hox genes consist of eleven paralog groups.
TLDR
Using a PCR-based survey, five new Hox genes from the earthworm Perionyx excavatus are identified and it is shown by semi-quantitative RT-PCR that duplicated Hox gene orthologs are differentially expressed in six different anterior-posterior body regions. Expand
Significance of using nephridia in the taxonomy of family Enchytraeidae
Abstract A survey of the structure and variety of the nephridia in the subclass Oligochaeta is presented. The most diversified forms are discernible in the families of Megadrile earthworms Two mainExpand
DNA Barcoding Reveals Cryptic Diversity in Lumbricus terrestris L., 1758 (Clitellata): Resurrection of L. herculeus (Savigny, 1826)
TLDR
Large numbers of DNA barcode sequences of the cytochrome oxidase I obtained for nominal L. terrestris and six congeneric species reveal that there are two distinct lineages within nominal L, herculeus, and the two are morphologically indistinguishable, except by overlapping size-related characters. Expand
Extension of employing ITS region in the investigation of Hungarian Fridericia species
TLDR
It is established that molecular biological techniques are suitable to confirm that individuals from the same species (but collected from different places) have the same genetic profile, while very similar species can be shown to clearly segregate on the phylogenetic tree based on the divergence of certain external or internal characteristics. Expand
ON THE PHYLOGENY AND HIGHER CLASSIFICATION OF THE OLIGOCHAETA
TLDR
The optimal result, in terms of maximal number of characters and taxa and of parsimony, produced two trees differing only in the placement of the monotypic clade for the family Lumbriculidae. Expand
Next-generation hybridization and introgression
TLDR
The theoretical and methodological constraints that limit the understanding of natural hybridization are assessed, the use of NGS for detecting hybridization and introgression between non-model organisms is promoted, and recommendations for the ways in which emerging techniques should be used to overcome current limitations are made. Expand
The Sorry State of F2 Hybrids: Consequences of Rapid Mitochondrial DNA Evolution in Allopatric Populations
TLDR
It is suggested that disruption of mitochondrial function, known to result in a diverse set of human diseases, may frequently underlie reduced fitness in interpopulation and interspecies hybrids in animals. Expand
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