A Conserved Hypothetical Gene Is Required but Not Sufficient for Ptr ToxC Production in Pyrenophora tritici-repentis oleh Gongjun Shi, Gayan Kariyawasam, Sanzhen Liu, Yueqiang Leng, Shaobin Zhong, Shaukat Ali, Paula Moolhuijzen, Caroline S. Moffat, Jack B. Rasmussen, Timothy L. Friesen, Justin D. Faris, Zhaohui Liu