Range-wide genetic structure in the thorn-tailed rayadito suggests limited gene flow towards peripheral populations.

Scientific Reports
Esteban Botero-DelgadilloRodrigo A Vásquez

Abstract

Understanding the population genetic consequences of habitat heterogeneity requires assessing whether patterns of gene flow correspond to landscape configuration. Studies of the genetic structure of populations are still scarce for Neotropical forest birds. We assessed range-wide genetic structure and contemporary gene flow in the thorn-tailed rayadito (Aphrastura spinicauda), a passerine bird inhabiting the temperate forests of South America. We used 12 microsatellite loci to genotype 582 individuals from eight localities across a large latitudinal range (30°S-56°S). Using population structure metrics, multivariate analyses, clustering algorithms, and Bayesian methods, we found evidence for moderately low regional genetic structure and reduced gene flow towards the range margins. Genetic differentiation increased with geographic distance, particularly in the southern part of the species' distribution where forests are continuously distributed. Populations in the north seem to experience limited gene flow likely due to forest discontinuity, and may comprise a demographically independent unit. The southernmost population, on the other hand, is genetically depauperate and different from all other populations. Different analytical...Continue Reading

References

Jun 1, 1976·Theoretical Population Biology·D Carmelli, L L Cavalli-Sforza
Aug 26, 1998·Molecular Ecology·R GriffithsR J Dawson
Oct 26, 2000·Molecular Ecology·P A Crochet
Jan 10, 2002·Proceedings of the National Academy of Sciences of the United States of America·Cagan H SekerciogluRandi F Sandi
Mar 29, 2003·Genetics·Gregory A Wilson, Bruce Rannala
Dec 30, 2006·PLoS Genetics·Nick PattersonDavid Reich
Jul 25, 2009·The American Naturalist·Curtis W Burney, Robb T Brumfield
May 12, 2012·Molecular Ecology·Patrick G Meirmans
Dec 30, 2014·Ecology and Evolution·Alexander I Putman, Ignazio Carbone
Jun 18, 2016·Molecular Ecology·Aurélie KhimounStéphane Garnier
Mar 1, 1975·Evolution; International Journal of Organic Evolution·Masatoshi NeiRanajit Chakraborty
Feb 1, 1993·Evolution; International Journal of Organic Evolution·Montgomery Slatkin
May 3, 2018·Systematic Biology·Andrew RambautMarc A Suchard
Jun 2, 2018·Scientific Reports·Peter R TeskeLuciano B Beheregaray
Jun 26, 2018·Methods in Ecology and Evolution·Marie-Pauline BeuginThibaut Jombart
Jul 22, 2018·Genetics·Gideon S BradburdPeter L Ralph

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Citations

Dec 6, 2020·The Journal of Heredity·Esteban Botero-DelgadilloBart Kempenaers
Apr 13, 2021·Ecology and Evolution·Yanina PobleteRodrigo A Vásquez

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Methods Mentioned

BETA
PCR
PCA

Software Mentioned

BayesAss
QGIS
Tracer
adegenet
hierfstat
BOTTLENECK
GenAlEx
snapclust
NeEstimator
poppr

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