A mesodermal factor, T, specifies mouse germ cell fate by directly activating germline determinants.

Aramaki S, Hayashi K, Kurimoto K, Ohta H, Yabuta Y, Iwanari H, Mochizuki Y, Hamakubo T, Kato Y, Shirahige K, Saitou M.Dev. Cell. 2013 Dec 09;27(5):516-29. doi: 10.1016/j.devcel.2013.11.001