The parthenogenetic Marmorkrebs (marbled crayfish) produces genetically uniform offspring

@article{Martin2007ThePM,
  title={The parthenogenetic Marmorkrebs (marbled crayfish) produces genetically uniform offspring},
  author={Peer Martin and Klaus Kohlmann and Gerhard Scholtz},
  journal={Naturwissenschaften},
  year={2007},
  volume={94},
  pages={843-846}
}
Genetically identical animals are very much in demand as laboratory objects because they allow conclusions about environmental and epigenetic effects on development, structures, and behavior. Furthermore, questions about the relative fitness of various genotypes can be addressed. However, genetically identical animals are relatively rare, in particular, organisms that combine a high reproduction rate and a complex organization. Based on its exclusively parthenogenetic reproduction mode, it has… Expand
Clonal genome evolution of the marbled crayfish, Procambarus virginalis
TLDR
Detailed insights into genotype distributions support the theory of asexual speciation by autopolyploidization and considered economically and ecologically relevant keystone species, a representative genome sequence provides an important resource for future research. Expand
BIO014241 1583..1594
The parthenogenetic all-female marbled crayfish is a novel research model and potent invader of freshwater ecosystems. It is a triploid descendant of the sexually reproducing slough crayfish,Expand
The marbled crayfish as a paradigm for saltational speciation by autopolyploidy and parthenogenesis in animals
TLDR
The triploid marbled crayfish is a rare animal example of speciation by autopolyploidisation and parthenogenesis and seems to be a particularly suitable model to study how much genetic and epigenetic change is necessary to create a new species. Expand
The marbled crayfish as a paradigm for saltational speciation by autopolyploidy and parthenogenesis in animals
TLDR
It is shown here that marbled crayfish and P. fallax are reproductively separated, suggesting that the reproductive barrier is set at the cytogenetic rather than the behavioural level, and the high probability of a divergent future evolution of the marbledCrayfish should be considered as an independent asexual species. Expand
The enigmatic Marmorkrebs (marbled crayfish) is the parthenogenetic form of Procambarus fallax (Hagen, 1870)
TLDR
It is suggested that the Marmorkrebs is the parthenogenetic form of P. fallax, a species found natively throughout peninsular Florida, USA, which has potential evolutionary and ecological implications at several levels. Expand
Genomic features of parthenogenetic animals
TLDR
Not a single feature was systematically replicated across a majority of these transitions, suggesting that previously reported patterns were lineage specific rather than illustrating general consequences of parthenogenesis, and that only parthenogens of hybrid origin were characterized by high heterozygosity levels. Expand
Clonal crayfish as biological model: a review on marbled crayfish
TLDR
This review provides an overview of the occurrence, biology, ecology, ethology, and human exploitation of marbled crayfish with primary focus on its use as a laboratory model organism as well as potential risks to native biota in case of its introduction. Expand
The first record of the parthenogenetic Marmorkrebs (Decapoda, Astacida, Cambaridae) in the wild in Saxony (Germany) raises the question of its actual threat to European freshwater ecosystems.
TLDR
A cambarid specimen was collected in a brook in Saxony (south-east Germany) and the initial assumption of a Marmorkrebs identity for the Saxon specimen was verified, and in addition to the two indigenous species, the new find is the fourth recorded introduced crayfish species in this area. Expand
Genome analysis of the monoclonal marbled crayfish reveals genetic separation over a short evolutionary timescale
TLDR
The authors provide whole-genome sequencing of the parthenogenetic and invasive marbled crayfish and develop a computational framework for data analysis of monoclonal genomes and demonstrate genetic separation between two populations. Expand
The parthenogenetic Marmorkrebs (Malacostraca: Decapoda: Cambaridae) is a triploid organism
TLDR
It is shown that the Marmorkrebs is a triploid organism, which has a strikingly large subtelocentric chromosome which appears once in haploid and twice in diploid cells of sexual individuals of the P. fallax complex. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 37 REFERENCES
Parthenogenesis in an outsider crayfish
TLDR
By virtue of its parthenogenetic reproduction, the marbled crayfish emerges not only as an interesting laboratory model but also as a potential ecological threat in that it could outcompete native forms should even a single specimen be released into European rivers. Expand
Life stages and reproductive components of the Marmorkrebs (marbled crayfish), the first parthenogenetic decapod crustacean
TLDR
The results revealed that the external sexual characters and also the gonads of the marbled crayfish are purely female, making this fast‐reproducing species a good model for investigating female reproductive features in cray Fish, and the detection of new rickettsial and coccidian infections in the ovary and further organs raises fears that the marblers might endanger native European species by transmission of pathogens once escaped into the wild. Expand
A parthenogenetic Varanus
TLDR
It is shown that the parthenogen and its mother exhibit almost identical DNA patterns, and an additional recombination could result homogamety (would explain the sex of theparthenogen) while expressing almost all maternal bands. Expand
Phylogenetic relationships between parthenogens and their sexual relatives: the possible routes to parthenogenesis in animals
TLDR
The possible evolutionary routes to parthenogenesis are reviewed based on a survey of the phylogenetic relationships between sexual and parthenogenetic lineages in a broad range of animals and the influences of these mechanisms on both the genetic properties and the ecological life styles of the resulting lineages are discussed. Expand
Ameiotic recombination in asexual lineages of Daphnia
TLDR
The rate of loss of nucleotide heterozygosity by ameiotic recombination is substantially greater than the rate of introduction of new variation by mutation, suggesting that the evolutionary potential of asexual diploid species is not only a matter of mutation accumulation and reduced efficiency of selection but also underscores the limited utility of using neutral allelic divergence as an indicator of ancient asexuality. Expand
Brood care in freshwater crayfish and relationship with the offspring's sensory deficiencies
TLDR
All phases of brood care in freshwater crayfish are investigated, with particular emphasis on the morphological structures involved, to examine if there is a causal relationship between brood care and the developmental status of the offspring's sensory apparatus. Expand
Ontogeny of the Marmorkrebs (marbled crayfish): a parthenogenetic crayfish with unknown origin and phylogenetic position.
TLDR
The Marmorkrebs may be taken as a representative valid model organism for future developmental studies on Crustacea and experiments indicate that their development is virtually identical to that of other crayfish. Expand
Evidence of recombination in putative ancient asexuals.
TLDR
The results suggest that some cryptic recombination events may exist in these organisms, which are thought to have been asexual for the last 400, 25-100, and 35-40 Myr. Expand
Stages and other aspects of the embryology of the parthenogenetic Marmorkrebs (Decapoda, Reptantia, Astacida)
TLDR
The study of the post-naupliar cell division patterns, segment formation, and engrailed expression reveals distinct similarities to that of other freshwater crayfish, and the possibility of a generalization of ontogenetic processes in the Marmorkrebs for either freshwatercrayfish or other crustacean developmental systems is evaluated. Expand
Genetic polymorphism and evolution in parthenogenetic animals. II. Diploid and polyploid Solenobia triquetrella (Lepidoptera: Psychidae).
TLDR
In the marginal distribution areas of the species in northern Europe single genotypes are spread over far larger areas than in the mountain regions of central Europe, which may be due to the old origin of parthenogenesis and polyploidy in northern European. Expand
...
1
2
3
4
...