The pleiotropic ABNORMAL FLOWER AND DWARF1 affects plant height, floral development and grain yield in rice

doi:10.1111/jipb.12441

J Integr Plant Biol. ›› 2016, Vol. 58 ›› Issue (6): 529-539.DOI: 10.1111/jipb.12441

Special Issue: Rice Genomics and Agriculture

• Cell and Developmental Biology • Previous Articles Next Articles

The pleiotropic ABNORMAL FLOWER AND DWARF1 affects plant height, floral development and grain yield in rice

Deyong Ren^1†, Yuchun Rao^1,2†, Liwen Wu^1†, Qiankun Xu¹, Zizhuang Li^1,3, Haiping Yu¹, Yu Zhang¹, Yujia Leng¹, Jiang Hu¹, Li Zhu¹, Zhenyu Gao¹, Guojun Dong¹, Guangheng Zhang¹, Longbiao Guo¹, Dali Zeng^1* and Qian Qian^1*

¹State Key Lab for Rice Biology, China National Rice Research Institute, Hangzhou, China
²College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
³College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China

Received:2015-08-04 Accepted:2015-10-16 Published:2015-10-21
About author:^†These authors contributed equally to this work.
^**Correspondence: E-mail: qianqian188@hotmail.com; dalizeng@126.com (Dr. Qian is fully responsible for distributions of all materials associated with this article)

Abstract

Abstract:

Moderate plant height and successful establishment of reproductive organs play pivotal roles in rice grain production. The molecular mechanism that controls the two aspects remains unclear in rice. In the present study, we characterized a rice gene, ABNORMAL FLOWER AND DWARF1 (AFD1) that determined plant height, floral development and grain yield. The afd1 mutant showed variable defects including the dwarfism, long panicle, low seed setting and reduced grain yield. In addition, abnormal floral organs were also observed in the afd1 mutant including slender and thick hulls, and hull-like lodicules. AFD1 encoded a DUF640 domain protein and was expressed in all tested tissues and organs. Subcellular localization showed AFD1-green fluorescent fusion protein (GFP) was localized in the nucleus. Meantime, our results suggested that AFD1 regulated the expression of cell division and expansion related genes.

Key words: Plant height, hull, lodicule, grain yield, AFD1, rice (Oryza sativa)

Deyong Ren, Yuchun Rao, Liwen Wu, Qiankun Xu, Zizhuang Li, Haiping Yu, Yu Zhang, Yujia Leng, Jiang Hu, Li Zhu, Zhenyu Gao, Guojun Dong, Guangheng Zhang, Longbiao Guo, Dali Zeng, and Qian Qian. The pleiotropic ABNORMAL FLOWER AND DWARF1 affects plant height, floral development and grain yield in rice[J]. J Integr Plant Biol., 2016, 58(6): 529-539.

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The pleiotropic ABNORMAL FLOWER AND DWARF1 affects plant height, floral development and grain yield in rice

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