Slow Development Restores the Fertility of Photoperiod-Sensitive Male-Sterile Plant Lines
Cheng Zhang, Te Xu, Mengyi Ren, Jun Zhu, Qiang‐Sheng Shi, Yafei Zhang, Yi-Wen Qi, Min‐Jia Huang, Lei Song, Ping Xu, Zhong‐Nan Yang
Abstract
2 under these conditions. We found that several other TGMS lines with defects in pollen wall formation also exhibited PGMS characteristics. This similarity indicates that slow development is a general mechanism of PGMS fertility restoration. Notably, slow development also underlies the fertility recovery of TGMS lines. Further analysis revealed the pollen wall features during the formation of functional pollens of these P/TGMS lines under permissive conditions. We conclude that slow development is a general mechanism for fertility restoration of P/TGMS lines and allows these plants to take different strategies to overcome pollen formation defects.