Transcriptome Analysis Reveals Photoperiod-Associated Genes Expressed in Rice Anthers

• DOI: 10.3389/fpls.2021.621561
• Publication Date: 2021-02-26T15:01:12Z
• Authors: Shiyu Sun; Duoxiang Wang; Jingbin Li; Yaqi Lei; Gang Li; WenGuo Cai; Xiangxiang Zhao; Wanqi Liang; Dabing Zhang
• Keywords: Gene regulatory network

Environmental conditions, such as photoperiod and temperature, can affect male fertility in plants. While this feature is heavily exploited rice to generate male-sterile lines for hybrid breeding, the underlying molecular mechanisms remain largely unknown. In study, we use a transcriptomics approach identify key genes regulatory networks affecting pollen maturation anthers response different day lengths. A total of 11,726 differentially expressed (DEGs) were revealed, which 177 at six time points over 24-h period. GO enrichment analysis revealed that all enriched transport, carbohydrate, lipid metabolic processes, signaling pathways, particularly phytohormone signaling. addition, co-expression network four modules strongly correlated with photoperiod. Within these modules, 496 hub identified high degree connectivity other photoperiod-sensitive DEGs, including two previously reported photoperiod- temperature-sensitive fertility, Carbon Starved Anthe r UDP-glucose pyrophosphorylase , respectively. This work provides new understanding on development rice, our gene expression data will provide new, comprehensive resource environmentally sensitive regulating crop improvement.