Advances in plant male sterility for hybrid seed production: an overview of conditional nuclear male sterile lines and biotechnology-based male sterile systems - Vasupalli, Naresh; Mogilicherla, Kanakachari; Shaik, Vahab; Rao, K. R. S. Sambasiva; Bhat, Shripad R.; Lin, Xinchun (Frontiers in Plant Science, 2025)