Australian lungfish (Neoceratodus forsteri: Dipnoi) have low genetic variation at allozyme and mitochondrial DNA loci: a conservation alert?

@article{Frentiu2004AustralianL,
  title={Australian lungfish (Neoceratodus forsteri: Dipnoi) have low genetic variation at allozyme and mitochondrial DNA loci: a conservation alert?},
  author={Francesca D. Frentiu and Jennifer R Ovenden and Raewyn Street},
  journal={Conservation Genetics},
  year={2004},
  volume={2},
  pages={63-67}
}
Genetic variation at allozyme and mitochondrialDNA loci was investigated in the Australianlungfish, Neoceratodus forsteri Krefft1870. Tissue samples for genetic analysis weretaken non-lethally from 278 individualsrepresenting two spatially distinct endemicpopulations (Mary and Burnett rivers), as wellas one population thought to be derived from ananthropogenic translocation in the 1890's(Brisbane river). Two of 24 allozyme lociresolved from muscle tissue were polymorphic.Mitochondrial DNA… 
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Mitogenomic analysis of the Australian lungfish (Neoceratodus forsteri) reveals structuring of indigenous riverine populations and late Pleistocene movement between drainage basins
TLDR
The results emphasise the utility of the full mtDNA molecule for capturing population structure in taxa with low genetic diversity and suggest that genetic exchange among coastal catchments may have been facilitated by riverine connections on the exposed continental shelf during the late Pleistocene.
Extremely Low Microsatellite Diversity but Distinct Population Structure in a Long-Lived Threatened Species, the Australian Lungfish Neoceratodus forsteri (Dipnoi)
TLDR
Analysis of samples from the Burnett and Mary Rivers supports the hypothesis that the Mary River is the likely source of translocated populations in the Brisbane and North Pine rivers, which agrees with historical published records of a translocation event giving rise to these populations.
Conservation genetics and the Australian lungfish Neoceratodus forsteri; a spatio-temporal study of population structure
TLDR
This study has shown that the common ATPase haplotype found in contemporary populations wasAlso present among specimens collected from 1912, and the high prevalence of rare alleles recorded from modern Mary populations was also recorded from formalin preserved specimens.
Phylogeography of the Australian freshwater turtle Chelodina expansa reveals complex relationships among inland and coastal bioregions
TLDR
It is demonstrated that freshwater taxa commonly display genetic differentiation within a biogeographical region where no boundaries have been recognized, highlighting the need to uncover cryptic microbiogeographical regions to aid conservation of freshwater biota.
Evaluation of Genetic Variation in the Clown Knifefish, Chitala chitala, Using Allozymes, RAPD, and Microsatellites
TLDR
An analysis of 38 allozyme loci did not reveal any polymorphism in the samples from any of the riverine localities; a possible explanation for this could be that the ancestors of Chitala could have faced a population reduction in prehistoric periods, as low allo enzyme variation is also reported for other species of ChITALa from south Asia.
Isolation and characterization of 21 polymorphic microsatellite loci in the iconic Australian lungfish, Neoceratodus forsteri, using the Ion Torrent next-generation sequencing platform
TLDR
21 microsatellite loci were isolated and characterized in the vulnerable and iconic Australian lungfish, Neoceratodus forsteri, to assess effective population sizes and genetic structure in N. forstersi across its natural range in South East Queensland, Australia.
Monitoring age‐related trends in genomic diversity of Australian lungfish
TLDR
The results suggest that long‐lived threatened species can maintain stable levels of intraspecific variability when sufficient reproductive opportunities exist over the course of a long lifespan.
Occurrence of lungfish in the Brisbane River, Queensland, Australia dates back to 3850 yr BP
Mitochondrial DNA variation in natural populations of endangered Indian Feather-Back Fish, Chitala chitala
TLDR
The patterns of genetic diversity, haplotypes networks clearly indicated two distinct mitochondrial lineages and mismatch distribution strongly suggest a historical influence on the genetic structure of C. chitala populations.
Comparison of embryological development in the threatened Australian lungfish Neoceratodus forsteri from two sites in a Queensland river system
TLDR
Comparison of embryological development between eggs and embryos found in unaltered reaches of the Brisbane River to eggs and embryo from a spawning event in Lake Wivenhoe, suggests that lungfish may face more problems than lack of shelter for the young.
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