Abstract
The Corresponding Author (*) apologises for the fact that three of the authors, L. Granjon, C. Tatard and J. F. Cosson, had been unaware of the authorship and content of the paper. The correct authorship, which now includes J. M. Duplantier, G. Dobigny and K. Hima, who all contributed significantly to the work, is given here, together with the GenBank accession numbers for the sequences used.