Chinese Bulletin of Botany ›› 2016, Vol. 51 ›› Issue (4): 488-495.DOI: 10.11983/CBB15136

• EXPERIMENTAL COMMUNICATIONS • Previous Articles     Next Articles

Functional Genes of Panicle Development in Response to Nitrogen Fertilizer in Rice

Chengqiang Ding, Shaohua Wang, Yanfeng Ding*   

  1. College of Agronomy, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2015-08-03 Accepted:2015-11-05 Online:2016-07-01 Published:2016-08-05
  • Contact: Ding Yanfeng
  • About author:

    # Co-first authors

Abstract:

Deep-sequencing technologies provide quantitative measures of transcript abundance. We studied the effect of nitrogen fertilizer on genes by deep-sequencing. Many genes were differentially expressed under different levels of nitrogen. The differentially expressed genes were classified into several functional categories including transcriptional regulation, hormone metabolism and signal transduction, metabolism and transportation, stress response, signal transduction (receptor), and protein degradation. Mutant analyses and map-based cloning have revealed many genes controlling the number of spikelets per panicle. Several genes were regulated by nitrogen fertilizer. Some genes regulate panicle development and also plant height, heading date, tiller number, and seed setting rate. Researching the function of these differentially expressed genes will help reveal the molecular mechanisms of nitrogen fertilizer in regulating panicle development in rice.