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

被引：50

作者：

Zhang, Huan ^{[1
]}

Zhu, Shanshan ^{[2
]}

Liu, Tianzhen ^{[2
]}

Wang, Chunming ^{[1
]}

Cheng, Zhijun ^{[2
]}

Zhang, Xin ^{[2
]}

Chen, Liping ^{[1
]}

Sheng, Peike ^{[2
]}

Cai, Maohong ^{[1
]}

Li, Chaonan ^{[2
]}

Wang, Jiachang ^{[1
]}

Zhang, Zhe ^{[2
]}

Chai, Juntao ^{[1
]}

Zhou, Liang ^{[1
]}

Lei, Cailin ^{[2
]}

Guo, Xiuping ^{[2
]}

Wang, Jiulin ^{[2
]}

Wang, Jie ^{[2
]}

Jiang, Ling ^{[1
]}

Wu, Chuanyin ^{[2
]}

Wan, Jianmin ^{[1
,2
]}

机构：

[1] Nanjing Agr Univ, Natl Key Lab Crop Genet & Germplasm Enhancement, Nanjing, Jiangsu, Peoples R China

[2] Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing, Peoples R China

来源：

PLANT BIOTECHNOLOGY JOURNAL | 2019年 / 17卷 / 02期

基金：

国家重点研发计划;

关键词：

rice; heading date; GRAS; Ehd1; OsHAP5C/D; yield; CONSTANS-LIKE GENE; TRANSCRIPTION FACTOR; GRAS PROTEINS; STRESS-RESPONSE; FAMILY GENES; EXPRESSION; EHD1; DOWNSTREAM; REGULATOR; REPRESSOR;

D O I：

10.1111/pbi.12996

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

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.

引用

页码：531 / 539

页数：9

共 64 条

[1] Integration of plant responses to environmentally activated phytohormonal signals [J].