Simultaneously induced mutations in eIF4E genes by CRISPR/Cas9 enhance PVY resistance in tobacco oleh Ngoc Thu Le, Huyen Thi Tran, Thao Phuong Bui, Giang Thu Nguyen, Doai Van Nguyen, Dong Thi Ta, Duy Dinh Trinh, Attila Molnar, Ngoc Bich Pham, Ha Hoang Chu, Phat Tien Do