DELAYED HEADING DATE1 interacts with OsHAP5C/D, delays flowering time and enhances yield in rice. Issue 2 (4th September 2018)

• Record Type: Journal Article
• Authors: Zhang, Huan; Zhu, Shanshan; Liu, Tianzhen; Wang, Chunming; Cheng, Zhijun; Zhang, Xin; Chen, Liping; Sheng, Peike; Cai, Maohong; Li, Chaonan; Wang, Jiachang; Zhang, Zhe; Chai, Juntao; Zhou, Liang; Lei, Cailin; Guo, Xiuping; Wang, Jiulin; Wang, Jie; Jiang, Ling; Wu, Chuanyin; Wan, Jianmin
• Is Part Of: Plant biotechnology journal. Volume 17:Issue 2(2019)
• Page Start: 531
• Page End: 539
• Publication Date: 2018-09-04
• Subjects: rice -- heading date -- GRAS -- Ehd1 -- OsHAP5C/D -- yield; Plant biotechnology -- Periodicals; Plant genetic engineering -- Periodicals; 630.272
• DOI: 10.1111/pbi.12996
• Languages: English
• ISSNs: 1467-7644

Abstract

Summary: Heading date is an important agronomic trait affecting crop yield. The GRAS protein family is a plant‐specific super family extensively involved in plant growth and signal transduction. However, GRAS proteins are rarely reported have a role in regulating rice heading date. Here, we report a GRAS protein DHD1 (Delayed Heading Date1) delays heading and enhances yield in rice. Biochemical assays showed DHD1 physically interacts with OsHAP5C/D both in vitro and in vivo . DHD1 and OsHAP5C/D located in the nucleus and showed that rhythmic expression. Both DHD1 and OsHAP5C/D affect heading date by regulating expression of Ehd1 . We propose that DHD1 interacts with OsHAP5C/D to delay heading date by inhibiting expression of Ehd1 .