Comparative analysis of proso millet (Panicum miliaceum L.) leaf transcriptomes for insight into drought tolerance mechanisms

• DOI: 10.1186/s12870-019-2001-x
• Publication Date: 2019-09-11T08:02:58Z
• Authors: Yuyu Zhang; Xiaoli Gao; Jing Li; Xiangwei Gong; Pu Yang; Jinfeng Gao; Pengke Wang; Baili Feng
• Keywords: Panicum miliaceum; Jasmonic acid; Panicum; Drought Tolerance; Drought stress

Drought stress is a major abiotic that causes huge losses in agricultural production. Proso millet (Panicum miliaceum L.) can efficiently adapt to drought and provides important information gene resources improve tolerance. However, its complex drought-responsive mechanisms remain unclear.Among 37 core Chinese proso cultivars, Jinshu 6 (JS6) was selected as the drought-sensitive test material, whereas Neimi 5 (NM5) drought-tolerant material under PEG-induced water stress. After sequencing, 1695 differentially expressed genes (DEGs) were observed JS6 NM5 without (JS6CK NM5CK). A total of 833 2166 DEGs found two cultivars simulated by using 20% PEG-6000 for (JS6T6 NM5T6) 24 h (JS6T24 NM5T24), respectively. The JS6T6 JS6T24 treatments approximately 0.298- 0.754-fold higher than those NM5T6 NM5T24, Compared with respective controls, more T6 T24 treatments. delay transcriptional responses ROS scavenging system treatment relatively easy recovery expression photosynthesis-associated NM5. JS6, different regulation strategies jasmonic acid (JA) signal transduction pathway NM5.Under stress, maintained highly stable levels. JA may be one driving forces underlying