The pleiotropic SEPALLATA- like gene OsMADS34 reveals that the 'empty glumes' of rice (Oryza sativa) spikelets are in fact rudimentary lemmas

doi:10.1111/nph.12657

	The pleiotropic SEPALLATA- like gene OsMADS34 reveals that the 'empty glumes' of rice (Oryza sativa) spikelets are in fact rudimentary lemmas
	Lin, Xuelei 1; Wu, Feng ; Du, Xiaoqiu ; Shi, Xiaowei ; Liu, Yuan ; Liu, Shujun ; Hu, Yuxin; Theissen, Guenter 2; Meng, Zheng
	2014
发表期刊	NEW PHYTOLOGIST
ISSN	0028-646X
卷号	202 期号:2 页码:689-702
摘要	The single floret of the rice (Oryza sativa) spikelet is subtended by a pair of enigmatic organs usually termed empty glumes' or sterile lemmas'. As the identity of these organs remains essentially unknown, we refer to them as organs of unknown identity' (OUIs). Here we present a novel mutant of the rice SEPALLATA-like gene OsMADS34 which develops, in addition to disorganized branches and sterile seeds, elongated OUIs. The function and evolution of OsMADS34 were studied. Morphological and molecular markers indicate that the elongated OUIs have adopted lemma identity. Evolutionary analyses show that the ancestral genes of the OsM34 subclade evolved under positive selection, and that three specific motifs occur in the C-terminal region of proteins in the OsM34 subclade. Yeast two-hybrid assays revealed that the C-terminal region of OsMADS34 plays a crucial role in mediating protein interactions. Sequence analyses for the wild rice Oryzagrandiglumis which has elongated OUIs revealed the association of OsMADS34 functionality with OUI identity. Our findings support the hypothesis that OUIs originated from the lemmas of degenerate florets under the negative control of OsMADS34. As OUIs neither are homologues to glumes nor have the identity of lemmas any more, but originated from these organs, we suggest calling them rudimentary lemmas'.
关键词	evolution lemma OsMADS34 rice spikelet sub neofunctionalization
学科领域	Plant Sciences
DOI	10.1111/nph.12657
收录类别	SCI
语种	英语
WOS关键词	MADS-BOX GENE ; FLORAL ORGAN IDENTITY ; MULTIPLE SEQUENCE ALIGNMENT ; MERISTEM IDENTITY ; MAXIMUM-LIKELIHOOD ; PHYLOGENETIC ANALYSIS ; TRANSCRIPTION FACTORS ; EVOLUTIONARY HISTORY ; PROTEIN INTERACTIONS ; ADAPTIVE EVOLUTION
WOS研究方向	Plant Sciences
WOS记录号	WOS:000333060500037
出版者	WILEY-BLACKWELL
文献子类	Article
出版地	HOBOKEN
EISSN	1469-8137
资助机构	National Natural Science Foundation of China [91335102, 31270280] ; Ministry of Science and Technology of China [2011CB100405]
作者邮箱	zhmeng@ibcas.ac.cn
作品OA属性	Bronze
引用统计	被引频次：39[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27270
专题	中科院植物分子生理学重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Univ Jena, Dept Genet, D-07743 Jena, Germany
推荐引用方式 GB/T 7714	Lin, Xuelei,Wu, Feng,Du, Xiaoqiu,et al. The pleiotropic SEPALLATA- like gene OsMADS34 reveals that the 'empty glumes' of rice (Oryza sativa) spikelets are in fact rudimentary lemmas[J]. NEW PHYTOLOGIST,2014,202(2):689-702.
APA	Lin, Xuelei.,Wu, Feng.,Du, Xiaoqiu.,Shi, Xiaowei.,Liu, Yuan.,...&Meng, Zheng.(2014).The pleiotropic SEPALLATA- like gene OsMADS34 reveals that the 'empty glumes' of rice (Oryza sativa) spikelets are in fact rudimentary lemmas.NEW PHYTOLOGIST,202(2),689-702.
MLA	Lin, Xuelei,et al."The pleiotropic SEPALLATA- like gene OsMADS34 reveals that the 'empty glumes' of rice (Oryza sativa) spikelets are in fact rudimentary lemmas".NEW PHYTOLOGIST 202.2(2014):689-702.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
24372518.pdf（2837KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文