Institute of Biotechnology, University of Lausanne, Lausanne, Switzerland. yann.karlen@tele2.ch <yann.karlen@tele2.ch>|Institute of Biotechnology, University of Lausanne, Lausanne, Switzerland. yann.karlen@tele2.ch <yann.karlen@tele2.ch>|Institute of Biotechnology, University of Lausanne, Lausanne, Switzerland. yann.karlen@tele2.ch <yann.karlen@tele2.ch>|Institute of Biotechnology, University of Lausanne, Lausanne, Switzerland. yann.karlen@tele2.ch <yann.karlen@tele2.ch>|Institute of Biotechnology, University of Lausanne, Lausanne, Switzerland. yann.karlen@tele2.ch <yann.karlen@tele2.ch>