TaD27‐B gene controls the tiller number in hexaploid wheat

• DOI: 10.1111/pbi.13220
• Publication Date: 2019-07-27T14:14:01Z
• Authors: Bin Zhao; Ting Ting Wu; Shan Shan Ma; Deng Ji Jiang; Xiao Min Bie; Na Sui; Xian Sheng Zhang; Fang Wang
• Keywords: Tiller (botany)

Summary Tillering is a significant agronomic trait in wheat which shapes plant architecture and yield. Strigolactones ( SL s) function inhibiting axillary bud outgrowth. The roles of s the regulation outgrowth have been described model species, including rice Arabidopsis . However, role genes remains elusive due to size complexity genomes. In this study, TaD27 wheat, orthologs D27 encoding an enzyme involved biosynthesis, were identified. ‐ RNA i plants had more tillers, TaD27‐B OE fewer tillers. Germination bioassay Orobanche confirmed was deficient excessive plants. Moreover, application exogenous GR 24 or TIS 108 could mediate hydroponic culture, suggesting that plays critical regulating tiller number by participating biosynthesis. Unlike , height not affected transgenic Transcription gene coexpression network analysis showed are signalling pathway development. Our results indicate key factor wheat.