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25th PGC学术预告 | 大会报告人严建兵

报告题目

 

  De novo design of functional micropeptides: a preliminary investigation

 

报告时间

 

  8.21  10:35 - 10:55

 

个人介绍

 

  严建兵

  华中农业大学教授

  主要研究方向

  主要从事玉米基因组学和分子育种研究。

 

报告摘要

 

  We discovered microRPG1. a 31-amino-acid micropeptide encoded by a previously non-coding region of the maize genome that delays kernel dehydration. This peptide originated de novo approximately 650.000 years ago, representing a novel, lineage-specific, and non-homologous protein exclusive to the Zea genus. These findings raised two fundamental scientific questions: whether microRPG1 retains functional conservation across diverse species, and whether numerous uncharacterized novel micropeptides with biological functions remain hidden within the vast and complex 2031 sequence space?

  Cross-species studies revealed that microRPG1 retains a conserved dehydration - delaying function in model plants, including Arabidopsis and rice. Notably, this micropeptide exhibits cross-kingdom conserved anti-aging functions in model animals (Caenorhabditis elegans and Drosophila melanogaster) and human cells, and also confers conserved thermotolerance under high-temperature stress in rice, C. elegans and D. melanogaster. Mechanistic exploration revealed that microRPG1 can specifically enter various animal cells, including human HEK293T cells, mouse NIH3T3 cells, and C. elegans embryonic cells. Its cellular entry relies primarily on extracellular matrix glycosaminoglycans (GAGs) and endocytosis, with the peptide ultimately localized to the Golgi apparatus.

  Furthermore, we initially constructed an integrated research platform combining chaos theory based design, high-throughput single-cell characterization, and automated phenotype verification. This platform enables large-scale de novo design of functional micropeptides and provides a powerful framework to explore the emergent mechanisms of novel biological functions in complex living systems.

 

最新研究进展

 

  Nature Genetics:严建兵团队发现玉米高产高蛋白协同调控的“绿色”基因

  让玉米既当“能量源”,又当“蛋白罐”,实现一物两用的梦想,华中农业大学严建兵教授团队追了多年。6月29日,国际学术期刊《自然-遗传学》(Nature Genetics)在线发表了他们与合作者的研究成果。这项题为“Multiomics analysis of primary metabolism reveals the genetic basis of nitrogen partitioning modulated by ZmAVT1A-1 in maize”的研究,利用多组学技术,借助前期发展的CUBIC群体系统,找到了一条能同时撬动高产、高蛋白、少施氮肥的“绿色”基因。

 

 

 

最新动态

 

  十年攻坚育良种!华中农大团队成果获2025年度国家技术发明奖二等奖

  7月8日,2025年度国家技术发明奖名单公布,由华中农业大学严建兵教授牵头,联合湖北洪山实验室、湖北康农种业股份有限公司联合攻关完成的“玉米基因组育种技术体系构建与应用”项目荣获二等奖。

  玉米作为我国第一大粮食作物,直接关系粮食安全、饲料供应保障。过去国内玉米育种长期面临基因挖掘慢、核心技术受制于人、优质新品种供给不足等难题。项目团队历经十余年产学研协同攻关,打通基因挖掘、精准育种、品种创制全链条,打造一套完全自主的玉米基因组育种技术体系,为种业振兴注入硬核科技力量。

 

 

  第二十五届全国植物基因组学大会将于2026年8月19日–22日在内蒙古自治区呼和浩特市召开,大会同期将举办Plant Innovation 首届编辑委员会会议及植物遗传与基因组学专业委员会工作会议,诚邀国内同行参加!大会信息详见官网https://plantgenomics.tri-think.cn

 

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