Genetic differentiation and detection of cryptic species in the genus Lepismachilis (Insecta: Microcoryphia) from the Western Mediterranean region

@article{Fanciulli1997GeneticDA,
  title={Genetic differentiation and detection of cryptic species in the genus Lepismachilis (Insecta: Microcoryphia) from the Western Mediterranean region},
  author={Pietro Paolo Fanciulli and Miguel Gaju and Carmen Bach and Francesco Frati},
  journal={Biological Journal of The Linnean Society},
  year={1997},
  volume={62},
  pages={533-551}
}
Different species of the bristletail genus Lepismachilis were collected in 14 localities in Italy and Spain and an allozyme electrophoretic survey was carried out to estimate the degree of genetic variability and differentiation at intra- and interspecific levels. Four morphological species were initially identified (L osellai, L. y-signata, L. affinis, L. targionii), but the electrophoretic analysis demonstrated the presence of two additional species among the individuals of L. targionii… 

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References

SHOWING 1-10 OF 40 REFERENCES
Genetic divergence and evolution of Polyommatus coridon gennargenti (Lepidoptera: Lycaenidae) in Sardinia
Electrophoretic analysis of 17 enzyme loci was carried out to assess the genetic differentiation and isolation of the Sardinian Polyommatus coridon gennargenti from P. c. apennina of peninsular Italy
Genetic variability and systematic relationships in four species of the genus Catamachilis (Insecta, Apterygota, Microcoryphia).
TLDR
Genetic differentiation among 9 populations of 4 species of the genus Catamachilis endemic to the Iberian peninsula confirmed the existence of three well differentiated species and found the population of C. clipeata was found to be strictly related to C. franzi.
The use of genetic markers for the diagnosis of sibling species in the genus Isotomurus (Insecta, Collembola)
TLDR
The absence of hybrids demonstrates that the two species, discriminated morphologically by body pigmentation, do not cross and the rate of sequence divergence of the mitochondrial COII gene confirms a significant degree of differentiation.
Molecular evolutionary divergence among North American cave crickets. I: Allozyme variation
TLDR
Forty-nine populations of nine species of North American cave crickets have been studied for genetic variation at 41 loci by electrophoresis, indicating relatively recent radiation with ongoing gene exchange among populations and suggesting epigean dispersal through forest habitat in cave-dwelling species is negligable.
Population studies on an endemic troglobitic beetle: geographical patterns of genetic variation, gene flow and genetic structure compared with morphometric data.
TLDR
The spatial patterning observed suggests that allozyme frequencies are not responding to environmentally controlled selection, and the substructuring of the species into regions suggests an influence of paleoclimatic gradient and paleoenvironment on the population's genetic structure.
MOLECULAR EVOLUTIONARY DIVERGENCE AMONG NORTH AMERICAN CAVE CRICKETS.
TLDR
It is concluded that these insects are among the fastest evolving (with respect to single-copy DNA) groups yet studied-at least as fast as Drosophila and sea urchins-where a ATm of 1?C indicates 0.5 to 1.5 MY since the last common ancestor.
Population structure and gene flow in Stomion: a species swarm of flightless beetles of the Galápagos Islands
TLDR
Tests of gene flow models give support to the stepping-stone model of dispersal of Stomion, which may explain the exuberant speciation of the genus in the Galápagos Islands.
MACRO‐ AND MICROGEOGRAPHIC STRUCTURE OF A SPATIALLY SUBDIVIDED BEETLE SPECIES IN NATURE
  • P. King
  • Environmental Science
    Evolution; international journal of organic evolution
  • 1987
TLDR
Effective population size variation among populations and between years, compounded with the effects of local extinctions, suggest that random processes such as drift and founder effects are important determinants of the population's genetic structure.
Estimating levels of gene flow in natural populations.
TLDR
It is shown that the average frequency of an allele conditioned on the number of local populations it appears in-the conditional average frequency-is approximately independent of both the selection intensity and mutation rates assumed, but depends strongly on the overall level of gene flow.
The Evolutionary Significance of Genetic Diversity: Ecological, Demographic and Life History Correlates
The evolutionary significance of genetic diversity of proteins in nature remains controversial despite the numerous protein studies conducted electrophoretically during the last two decades.
...
...