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陈时盛   研究员


邮箱:shisheng.chen@pku-iaas.edu.cn / shi-shengchen@hotmail.com
研究方向:小麦及其近缘植物优异基因的发掘与利用、关键基因的克隆及功能研究、小麦种质创新及新品种选育





个人简介:
       2009.09 - 2015.06,四川农业大学,Ph.D.(博士学位)
       2012.11 - 2014.10,美国加州大学戴维斯分校(University of California, Davis),国家公派联合培养博士
       2015.01 - 2019.03,美国加州大学戴维斯分校(University of California, Davis),博士后
       2019.04 – 至今,北京大学现代农业研究院,研究员
研究工作:
       本实验室以小麦为研究对象,利用正向与反向遗传学、转录组学、基因组学、分子和生化等方法解析小麦重要功能基因,特别是小麦真菌病害抗性基因。开展基因的定位、克隆和功能分析,并进行小麦的遗传改良和种质创新。
       1、小麦抗病基因的研究:小麦锈病(条锈病、叶锈病、秆锈病)、白粉病和赤霉病等真菌病害严重威胁小麦的安全生产。本课题组对国内外收集的小麦品种及其近缘材料进行系统的遗传解析,挖掘、定位新型抗病基因。利用下一代测序、高通量芯片、图位克隆和新兴的快速克隆等手段对抗病基因进行分离克隆,并解析抗病基因的分子机理,开发诊断性分子标记促进分子标记辅助育种。
       2、小麦重要农艺性状基因或QTL的研究:以小麦遗传群体、自然群体、突变体群体为材料,利用GWAS、Mutmap等方法结合下一代测序技术对控制重要农艺性状的相关基因或QTL进行定位、精细定位和克隆,解析基因的工作机制,应用于性状的遗传改良和分子育种。
       3、小麦的遗传改良和种质创新:利用常规育种、分子育种结合基因工程技术手段,培育高产、多抗、广适的小麦新种质/新品种。
研究成果:
       从小麦及其近缘材料中挖掘定位到多个新型抗锈病基因,包括Sr60、SrTm4、SrTm5、SrK2和YrSph等,并将部分抗病基因成功地转育到六倍体小麦主栽品种。利用图位克隆方法,先后在硬粒小麦(T.durum)和一粒小麦(T.monococcum)中完成了抗秆锈病基因Sr13,Sr21和Sr60的分离克隆,参与完成了小麦抗条锈病基因Yr15的图位克隆。定位和克隆的抗病基因被广泛应用于世界多个国家的小麦育种中,创造重大的经济社会效益。部分研究成果发表在PNAS,Nature Communications,New Phytologist,PLoS Genetics,Theoretical and Applied Genetics等国际知名期刊。

代表性论文:
       1. Chen S., Rouse M., Zhang W., Zhang X., Guo Y., Dubcovsky J., Wheat gene Sr60 encodes a protein with two putative kinase domains that confers resistance to stem rust; New Phytologist;  2020, 225: 948–959; doi: 10.1111/nph.16169
       2.  Chen S., Zhang W., Stephen B., Rouse M., Dubcovsky J., Identification and characterization of wheat stem rust resistance gene Sr21 effective against Ug99 race group at high temperature; PloS Genetics; 2018, 14(4): e1007287. https:// doi.org/10.1371/journal.pgen.1007287.
       3.  Valentina K., Elitsur Y., Lin H., Dina R., Andrii F., Chen S., Feng L., Frenkel Z., Fatiukha A., Dubcovsky J., Schulman HA., Fahima T., Cloning of the wheat Yr15 resistance gene sheds light on the plant tandem kinase-pseudokinase family; Nature Communications; 2018, 2041-1723
       4.  Chen S., Yan G., Briggs J., Dubach F., Chao S., Zhang W., Rouse M., Dubcovsky J., Mapping and characterization of wheat stem rust resistance genes SrTm5 and Sr60 from Triticum monococcum; Theoretical and Applied Genetics; 2018, 131.3: 625-635.
       5.  Zhang W., Chen S., Abate Z., Nirmala J., Rouse M., and Dubcovsky J., Identification and characterization of Sr13, a tetraploid wheat gene that confers resistance to the Ug99 stem rust race group; Proceedings of the National Academy of Sciences of the United States of America; 2017, 114(45), E9483-E9492.
       6.  Briggs J., Chen S., Zhang W., Nelson S., Dubcovsky J., Rouse M., Mapping of SrTm4, a Recessive Stem Rust Resistance Gene from Diploid Wheat Effective to Ug99; Phytopathology; 2015, 105.10: 1347-1354.
       7.  Chen S., Rouse M., Zhang W., Jin Y., Akhunov E., Wei Y., Dubcovsky J., Fine mapping and characterization of Sr21, a temperature-sensitive diploid wheat resistance gene effective against the Puccinia graminis f. sp. tritici Ug99 race group; Theoretical and Applied Genetics; 2015: 1-12.
       8.  Chen S., Chen G., Yang C., Wu W., He Y., Wei Y., Li W., Liu Y., Liu D., Lan X., Zheng Y., Identification and mapping of a stripe rust resistance gene in spring wheat germplasm HRMSN-81 from CIMMYT; Crop & Pasture Science; 2013, 64,1–8.
       9.  Chen S., Chen G., Chen H., Wei Y., Li W., Liu Y., Liu D., Lan X., Zheng Y., Mapping a stripe rust resistance gene YrSph in wheat line D31 derived from Tritium sphaerococcum Perc. with SSR, SRAP and TRAP markers; Euphytica; 2012, 185(1): 19-26.