Interspecific differentiation and gene flow between two desert poplars inferred from six vacuolar Na +/H + exchanger loci
Yu-Peng GUO, Qiu-Hong GUO, Juan WANG, Yan YAN, Gai-Ni WANG, Zhi-Qiang LU, Yu-Xia WU
J Syst Evol . 2013, (6): 652 -663 .  DOI: 10.1111/jse.12028