TrnL-trnfF cpDNA polymorphism in some representatives of the genus BetulaSvetlana Medvedeva, Olga Cherepanova, Olga Tolkach, Vasiliy Ponomarev and Galina MalosievaBIO Web Conf., 35 (2021) 00017DOI: https://doi.org/10.1051/bioconf/20213500017