Erratum to: Theor Appl Genet DOI 10.1007/s00122-007-0567-4

Unfortunately the last sentence of the first paragraph in the Introduction contains errors. The correct sentence is given here.

The size of this circular genome varies from 35 to 217 kb but among photosynthetic organisms the majority are between 115 and 165 kb (Jansen et al. 2005).