首页|Weak Population Genetic Structure of the Eurasian Crane Grus grus L.
Weak Population Genetic Structure of the Eurasian Crane Grus grus L.
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NSTL
The paper presents an extended (in comparison with previous studies) analysis of the population genetic structure of a migratory wide-range species with high abundance, the Eurasian crane, Grus grus L. Using seven highly polymorphic microsatellite loci, high and very similar values of genetic diversity parameters were obtained in samples of the western (G. g. grus) and eastern (G. g. lilfordi) subspecies. Coefficients of genetic differentiation between these subspecies (F-ST = 0.008, G(ST) = 0.002) were also found to be low. According to AMOVA, 99% of genetic variation of G. grus is attributed to individual levels. Using the Bayesian clustering algorithm implemented in the STRUCTURE software, no clear population genetic structuring of the species was revealed. At the same time, visualization of spatial patternts of genetic variability in the Geneland software showed the presence of a cluster of "pure" subspecies of G. g. grus and G. g. lilfordi, surrounding a cluster of individuals from the zone of intergradation of these subspecies. This result, along with the observed very low F-statistics values, may indicate subtle genetic differences between the cranes from the studied area, possibly having a mutational nature. Lower allelic richness and lack of private alleles in the eastern subspecies G. g.lilfordi suggests its relative evolutionary youth and recent origin from the eastern marginal populations of the nominative western subspecies.
Mudrik, E. A.、Markin, Yu. M.、Postelnykh, K. A.、Kondrakova, K. D.、Kashentseva, T. A.、Shatokhina, A. V.、Kazimirov, P. A.、Ilyashenko, V. Yu.、Ilyashenko, E. I.、Politov, D. V.
NSTL
