Genetic diversity of the earthworm Octolasion tyrtaeum (Lumbricidae, Annelida)

@article{Shekhovtsov2014GeneticDO,
  title={Genetic diversity of the earthworm Octolasion tyrtaeum (Lumbricidae, Annelida)},
  author={Sergei V. Shekhovtsov and E. V. Golovanova and S. E. Peltek},
  journal={Pedobiologia},
  year={2014},
  volume={57},
  pages={245-250}
}
Abstract Octolasion tyrtaeum (Savigny, 1826), a cosmopolite earthworm species widespread around the world, is known to consist of two morphologically distinct forms, small (4–8 cm long) and large (10–14 cm) ones that sometimes are found in sympatry. It was demonstrated that these forms belong to significantly divergent mtDNA lineages, which suggests that the differences among these forms are caused by genetic factors. However, these results were in contrast to the allozyme analyses, and nobody… Expand
Cryptic genetic lineages in Eisenia nordenskioldi pallida (Oligochaeta, Lumbricidae)
TLDR
A high number of cryptic lineages uncovered in the two subspecies call for a close examination of their status as potential species, possibly with the help of additional markers, and for additional molecular genetic investigation of either type specimen of these subspecies or of the topotypical populations. Expand
Phylogeography and genetic lineages of Aporrectodea rosea (Lumbricidae, Annelida)
TLDR
It is found that A. rosea significantly increased its range over the last two decades, now being found in West Siberia; genetic diversity there is low compared to European Russia and Belarus; the paleogeographic history of this species is thus more complex than it was thought earlier. Expand
Genetic diversity of the Aporrectodea caliginosa complex in Russia
TLDR
This study made an attempt to review available data on the Aporrectodea caliginosa species complex studied based on the collection from Russia, Belarus, and Kazakhstan and demonstrated pigmentation intensity in this subspecies to vary to a significant degree. Expand
Mitochondrial DNA variation in Eisenia n. nordenskioldi (Lumbricidae) in Europe and Southern Urals
TLDR
The results do not support the traditional viewpoint, suggesting that E. n. Expand
Cryptic speciation and limited hybridization within Lumbricus earthworms (Clitellata: Lumbricidae).
TLDR
Seven well supported cryptic species within the morphospecies L. rubellus are delimited using a Bayesian multi-locus species delimitation method, as well as single gene haplotype networks and gene trees, and the split within the species-pair L. terrestris-L. Expand
Earthworm Drawida (Moniligastridae) Molecular phylogeny and diversity in Far East Russia and Northeast China
Abstract In the Sikhote-Alin and Changbai Mountains of the Amur River region, earthworms of genus Drawida inhabit the northern boundary of their natural habitat. They are represented by the epigeicExpand
Hybridization relics complicate barcode‐based identification of species in earthworms
TLDR
These events of unidirectional hybridization between three taxa of the Allolobophora chlorotica aggregate within two field populations suggest sterility of the male function in several crosses and highlight that some individuals can be misidentified if reliance is placed on COI barcodes alone. Expand
DNA barcoding: How many earthworm species are there in the south of West Siberia?
TLDR
It is concluded that a large portion of earthworm biodiversity in the south of West Siberia is still unexplored, and some representatives of some of these novel clusters are morphologically similar to the Eisenia n. Expand
Molecular differentiation of epigeic and anceic forms of Drawida ghilarovi Gates, 1969 (Moniligastridae, Clitellata) in the Russian Far East: Sequence data of two mitochondrial genes
TLDR
Molecular data for Drawida showed high genetic differentiation between epigeic and anecic using COI and 16S rRNA gene sequence data as well as the various phylogenetic relationships among the studied forms. Expand
Transcriptomic analysis confirms differences among nuclear genomes of cryptic earthworm lineages living in sympatry
BackgroundMany earthworm species demonstrate significant cryptic diversity, with several highly diverged mitochondrial lineages found within most of the taxa studied to date. The status ofExpand
...
1
2
...

References

SHOWING 1-10 OF 28 REFERENCES
High genetic divergence of hormogastrid earthworms (Annelida, Oligochaeta) in the central Iberian Peninsula: evolutionary and demographic implications
TLDR
The data suggest that the evolutionary lineages for H. elisae s.s.l. originated between the late Miocene and the early Pleistocene, but that mtDNA genealogies coalesce on a more recent scale of a few thousand years. Expand
Mitochondrial COII sequences indicate that the parthenogenetic earthworm Octolasion tyrtaeum (Savigny 1826) constitutes of two lineages differing in body size and genotype
TLDR
There was a strong correlation between the size of the earthworms and the COII sequences; large specimens separated clearly from small specimens, and this indicates that O. tyrtaeum consists of two morphologically and genetically different lineages. Expand
Phylogenetic assessment of the earthworm Aporrectodea caliginosa species complex (Oligochaeta: Lumbricidae) based on mitochondrial and nuclear DNA sequences.
TLDR
The species status of all these taxa are confirmed and two hitherto unrecognized Aporrectodea species in Corsica (France) are identified, and the presence of highly divergent lineages within A. caliginosa, A. trapezoides, and A. longa is shown, suggesting the existence of cryptic diversity within theseTaxa. Expand
Mitochondrial DNA and morphological variation in the sentinel earthworm species Lumbricus rubellus
The common epigeic earthworm Lumbricus rubellus has been found to comprise two genetically distinct lineages and this genetic heterogeneity could compromise its currently widespread use as a sentinelExpand
New insight into the genetic structure of the Allolobophora chlorotica aggregate in Europe using microsatellite and mitochondrial data
TLDR
Microsatellite data confirmed that the green morph represents a single taxon and microsatellites provided evidence for hybridization between lineages and between morphs in the field, and mitochondrial data revealed the existence of two additional mitochondrial lineages within the pink morph. Expand
Clonal and morphological variation in marginal populations of parthenogenetic earthworms Octolasion tyrtaeum and O. cyaneum (Oligochaeta, Lumbricidae) from eastern Fennoscandia
TLDR
Clone pool diversity was studied in two parthenogenetic Octolasion species in South Finland belonging to the region of Fennoscandia where the species occur at the northern margin of their European range and showed that characters related to reproductive organs vary extremely little in the two species. Expand
High mitochondrial DNA sequence diversity in the parthenogenetic earthworm Dendrobaena octaedra
TLDR
Diversity of the cytochrome oxidase subunit I gene from the mitochondrial genome of the earthworm Dendrobaena octaedra is surveyed, finding high mtDNA diversity over three localities in Finland, each represented by two sites; either with or without anthropogenic soil metal contamination. Expand
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
Cryptic speciation of hormogastrid earthworms revealed by mitochondrial and nuclear data.
TLDR
Results showed a pattern of isolation by distance and a positive but weak correlation between some soil properties and genetic distances, which indicates that these populations may have been shaped genetically but not morphologically, by the environment. Expand
Opening a can of worms: unprecedented sympatric cryptic diversity within British lumbricid earthworms
TLDR
The aim was to examine the genetic structure of common earthworm species, to identify cryptic lineages or species that may be distinct ecotypes or biotypes (and hence confound current research based upon morphotypes) and to try to explain the massive cryptic diversity that eventually emerged. Expand
...
1
2
3
...