Gan, Z., Wang, Y., Wu, T., Xu, X., Zhang, X., & Han, Z. (2018). MdPIN1b encodes a putative auxin efflux carrier and has different expression patterns in BC and M9 apple rootstocks. Plant Molecular Biology. https://doi.org/10.1007/s11103-018-0700-6 (Original work published 2018)