Scientific Reports 5: Article number: 11885; published online: 08 July 2015; updated: 24 September 2015.

This Article contains a typographical error in the grant number in the Acknowledgements section.

“This study was supported by the Grant Agency of the Czech Republic (P305/10/2141) to Z.K. by the Ministry of Education, Youth and Sports of the Czech Republic (LM2011022) to P.B. and by IMG institutional support RVO68378050”.

should read:

“This study was supported by the Grant Agency of the Czech Republic (P305/10/2141) to Z.K. by the Ministry of Education, Youth and Sports of the Czech Republic (LO1220) to P.B. and by IMG institutional support RVO68378050”.