Downie, A., Zhang, D., Dirk, L., Thacker, R., Pfeiffer, J., Drake, J., … Snyder, J. (2003). Communication between the maternal testa and the embryo and/or endosperm affect testa attributes in tomato. Plant Physiology, 133(1), 145-60. https://doi.org/10.1104/pp.103.022632