APS and APR gene families in Broussonetia papyrifera: evolutionary conservation, functional divergence, and roles in selenium assimilation and biofortification. - Xue, Yansheng; Qian, Chengxu; Chen, Qiangwen; Xie, Min; Zheng, Jiarui; Sun, Jiaxing; Gong, Hejuan; Xu, Feng; Zhang, Weiwei (Horticulture Advances, 2026)