Horizontal gene transfer from Bacteria to rumen Ciliates indicates adaptation to their anaerobic, carbohydrates-rich environment

Guénola Ricard, Neil R McEwan, Bas E Dutilh, Jean-Pierre Jouany, Didier Macheboeuf, Makoto Mitsumori, Freda M McIntosh, Tadeusz Michalowski, Takafumi Nagamine, Nancy Nelson, Charles J Newbold, Eli Nsabimana, Akio Takenaka, Nadine A Thomas, Kazunari Ushida, Johannes H P Hackstein, Martijn A Huynen