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DELAYED HEADING DATE1 interacts with OsHAP5C/D, delays flowering time and enhances yield in rice.

ABSTRACT: 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.

SUBMITTER: Zhang H

PROVIDER: S-EPMC6335081 | biostudies-other | 2019 Feb

REPOSITORIES: biostudies-other

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DELAYED HEADING DATE1 interacts with OsHAP5C/D, delays flowering time and enhances yield in rice.

Zhang Huan H Zhu Shanshan S Liu Tianzhen T Wang Chunming C Cheng Zhijun Z Zhang Xin X Chen Liping L Sheng Peike P Cai Maohong M Li Chaonan C Wang Jiachang J Zhang Zhe Z Chai Juntao J Zhou Liang L Lei Cailin C Guo Xiuping X Wang Jiulin J Wang Jie J Jiang Ling L Wu Chuanyin C Wan Jianmin J

Plant biotechnology journal 20180904 2

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 ...[more]

PMID: 30107076

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