A chromosome-level genome assembly for Onobrychis viciifolia reveals gene copy number gain underlying enhanced proanthocyanidin biosynthesis. Junyi He†, Danyang Tian†, Xue Li†, Xuemeng Wang, Tingting Wang, Ziyao Wang, Hui Zang, Xiaofan He, Tiejun Zhang, Quanzheng Yun, Rengang Zhang, Jishan Jiang, Shangang Jia*, Yunwei Zhang*. Communications Biology, 2024, 7: 19.