A comparison of two indirect methods for estimating average levels of gene flow using microsatellite data.

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Output type: Journal article

Author list: Gaggiotti OE, Lange O, Rassmann K, Gliddon C.

Publisher: Wiley

Publication year: 1999

Journal: Molecular Ecology (0962-1083)

Volume number: 8

Issue number: 9

Start page: 1513

End page: 1520

Number of pages: 8

ISSN: 0962-1083

eISSN: 1365-294X

URL: http://dx.doi.org/10.1046/j.1365-294x.1999.00730.x

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Open access status: closed

Abstract

We compare the performance of Nm estimates based on FST and RST obtained from microsatellite data using simulations of the stepwise mutation model with range constraints in allele size classes. The results of the simulations suggest that the use of microsatellite loci can lead to serious overestimations of Nm, particularly when population sizes are large (N > 5000) and range constraints are high (K < 20). The simulations also indicate that, when population sizes are small (N /= 50) and many loci (nl >/= 20), RST performs better than FST for most of the parameter space. However, FST-based estimates are always better than RST when sample sizes are moderate or small (ns

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