Jiapeng Han: Plant Physiology First Author

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Jiapeng Han, first author of “Evolution of the DEHYDRATION-RESPONSIVE ELEMENT BINDING PROTEIN subfamily in green plants”

Current Position: PhD student in Biochemistry and Molecular Biology, Huazhong University of Science and Technology, China

Education: Huazhong University of Science and Technology

Non-scientific interests: Horticulture

Brief bio:

During plant radiation evolution, the frequent occurrence of whole-genome duplications caused many genes to repeatedly undergo the process of “duplication-loss/retention”, finally forming diverse gene families in response to various stresses in extant plants. The expansion and contraction of gene families do not occur independently, but are the result of the interaction between plant species and the external environment. With the increasing number of plant species with complete reference genomes, a large amount of accumulated genomic data allows us to reconstruct the evolutionary history of gene families with the help of comparative genomics and molecular evolutionary analysis and explore the relationship between their expansions, functional differentiation and species adaptive evolution, which provides new insights for mining stress tolerance-related genes and analyzing their mechanisms involved in stress responses. Therefore, during my Ph.D. student period, we focused on the AP2/EREBP superfamily and reconstructed the evolutionary history of the DREB subfamily to explore the relationship between the lineage-specific expansion of the DREB subfamily and the adaptive evolution of plant species.

论文题目：Evolution of the DEHYDRATION-RESPONSIVE ELEMENT BINDING PROTEIN subfamily in green plants

姓名：韩家鹏

职位：华中科技大学博士研究生

教育经历：华中科技大学

非学科兴趣：园艺

个人简介：

在植物辐射进化过程中，频繁发生的全基因组复制使很多基因反复经历“复制–丢失/保留”的过程，最终在现存植物基因组中形成了丰富多样的胁迫响应相关的基因家族。基因家族的扩张与收缩不是独立发生的，而是植物与外部环境相互作用的结果。随着完成全基因组测序的植物种类不断增多，大量积累的基因组学数据使我们可以借助比较基因组学和分子进化分析重建基因家族的进化历史，探究他们的扩张、功能分化与物种适应性进化之间的关系，这为挖掘胁迫耐受相关基因、解析其参与胁迫响应的分子机制提供了新的思路。因此，本人在攻读博士学位期间主要以AP2/EREBP超家族为研究对象，对DREB亚家族的进化历史进行重建，探究DREB亚家族谱系特异性扩张与植物适应性进化之间的相互关系。