Do outbreaks affect genetic population structure? A worldwide survey in Locusta migratoria, a pest plagued by microsatellite null alleles

@article{Chapuis2008DoOA,
  title={Do outbreaks affect genetic population structure? A worldwide survey in Locusta migratoria, a pest plagued by microsatellite null alleles},
  author={Marie Pierre Chapuis and Michel Lecoq and Yannis Michalakis and Anne Loiseau and GA Sword and Sylvain Piry and Arnaud Estoup},
  journal={Molecular Ecology},
  year={2008},
  volume={17}
}
An understanding of the role of factors intrinsic to a species’ life history in structuring contemporary genetic variation is a fundamental, but understudied, aspect of evolutionary biology. Here, we assessed the influence of the propensity to outbreak in shaping worldwide genetic variation in Locusta migratoria, a cosmopolitan pest well known for its expression of density‐dependent phase polyphenism. We scored 14 microsatellites in nine subspecies from 25 populations distributed over most of… 
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References

SHOWING 1-10 OF 89 REFERENCES
THE INFLUENCE OF HISTORY AND CONTEMPORARY STREAM HYDROLOGY ON THE EVOLUTION OF GENETIC DIVERSITY WITHIN SPECIES: AN EXAMINATION OF MICROSATELLITE DNA VARIATION IN BULL TROUT, SALVELINUS CONFLUENTUS (PISCES: SALMONIDAE)
TLDR
This work illustrates the limited utility of equilibrium models to delineate population structure and patterns of genetic diversity in recently founded populations or those inhabiting highly heterogeneous environments, and it highlights the need for approaches incorporating a landscape context for population divergence.
Genetic variation for parental effects on the propensity to gregarise in Locusta migratoria
TLDR
It is found that locusts from a historically outbreaking population of L. migratoria expressed parentally-inherited density-dependent phase changes to a greater degree than those from ahistorically non-outbreaking population, emphasizing the importance of genetic factors in the expression of phase traits.
High level of genetic differentiation for allelic richness among populations of the argan tree [Argania spinosa (L.) Skeels] endemic to Morocco
TLDR
It is shown that the measure of subdivision, θST, obtained when allelic richness is used in place ofh (Nei's index of diversity), is much larger than the FST, which suggests that rare alleles have a more scattered distribution than more frequent ones.
THE IMPORTANCE OF THE ONTOGENETIC NICHE IN RESOURCE‐ASSOCIATED DIVERGENCE: EVIDENCE FROM A GENERALIST GRASSHOPPER
TLDR
This study represents the first demonstration of resource‐ ssociated divergence in an otherwise generalist insect that exhibits temporal variation in resource use, characterized as developmental changes in host specialization.
Are solitary and gregarious Mormon crickets (Anabrus simplex, Orthoptera, Tettigoniidae) genetically distinct?
TLDR
It is established that the solitary populations found in the mountains on the eastern slope are part of a clade that is genetically distinct from the western populations, which are primarily gregarious, and the implications of this apparent correlation between phase and genetic differentiation are discussed.
Ecological and life history characteristics predict population genetic divergence of two salmonids in the same landscape
TLDR
A theoretical framework is provided that incorporates variation in ecological and life history factors, neutral divergence, and adaptive divergence to interpret how neutral and adaptive convergence might be correlates of ecological andlife history factors.
Effects of Changing Land Use on Outbreaks of Tropical Migratory Locust, Locusta Migratoria Migratorioides (R. & F.)
TLDR
Continuous agricultural development in tropical and sub-tropical areas of the Old World will bring the risk of further upsurges of tropical migratory locust numbers through agricultural and pastoral activities.
Influence of mutational and sampling factors on the estimation of demographic parameters in a "continuous" population under isolation by distance.
TLDR
The characteristics of mutational processes at microsatellite loci, namely the allele size homoplasy generated by stepwise mutations, constraints on allele size, and change of slippage rate with repeat number, have little influence on the estimation of Dsigma2.
Chloroplast DNA phylogeography of European ashes, Fraxinus sp. (Oleaceae): roles of hybridization and life history traits
TLDR
Analysis of range‐wide phylogeographic variation in three European ash species found wide‐ranging haplotype sharing between the phylogenetically close F. angustifolia and F. ornus, suggesting hybridization in common glacial refuges in the Iberian Peninsula, northern Italy, the eastern and/or Dinaric Alps and the Balkan Peninsula.
INVITED REVIEW: What is a population? An empirical evaluation of some genetic methods for identifying the number of gene pools and their degree of connectivity
TLDR
It is suggested several quantitative criteria that might be used to determine when groups of individuals are different enough to be considered ‘populations’, and a simple algorithm based on a multilocus contingency test of allele frequencies in pairs of samples has high power to detect the true number of populations but requires more rigorous statistical evaluation.
...
...