The genetic diversity and structure of horses raised in France were investigated using 11 microsatellite markers and 1679 animals belonging to 34 breeds. Between-breed differences explained about ten per cent of the total genetic diversity (Fst = 0.099). Values of expected heterozygosity ranged from 0.43 to 0.79 depending on the breed. According to genetic relationships, multivariate and structure analyses, breeds could be classified into four genetic differentiated groups: warm-blooded, draught, Nordic and pony breeds. Using complementary maximisation of diversity and aggregate diversity approaches, we conclude that particular efforts should be made to conserve five local breeds, namely the Boulonnais, Landais, Merens, Poitevin and Pottok breeds.
After the recent publication of our article (Leroy, Genetics Selection Evolution 2009 41:5), we found several errors in the published Table Three, concerning the computation of contribution to withinbreed diversity (CW). We apologize to the readers for these errors, which are corrected in the present erratum. Table Three (see Table 1 of this erratum) of our recently published paper [1] contains several errors. Here we present the corrected version of Table Three (see Table 2 of this erratum) and explain the new data. The authors regret the errors.
Correction
Results
Partition of diversityErrors concern the computation of the CW component developed by Ollivier and Foulley [2]. In the new version, CW ranged from -1 to 0.78. As aggregate diversity D is defined as a linear combination of CW and contribution to between-breed diversity, column D had also to be corrected, and ranged from -0.30 to 1.18. Consequently, the Pearson correlation between CW and ΔGD WS was found to be -1 (instead of -0.72 in the previous version), and the Pearson correlation between D and ΔGD T was found to be -0.59 (P = 0.008).
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