Phylogenetic tree of plant at the family level
组织者
丘成栋
演讲者
时间
2023年03月22日 20:30 至 20:50
地点
Online
摘要
The methods to construct the distance-based phylogenetic tree include UPGMA, WPGMA, NJ, ME, FM and their extended algorithms. UPGMA and WPGMA algorithms need strong hypothesis, which is that the evolutionary rate needs to be constant (molecular clock hypothesis). So they are not often used now. Traditional ME and FM are time-consuming when the number of species is large. NJ is a better choice and can get an accurate result in a reasonable time, but the limitation is that the root can’t be determined. Therefore, we introduced the outgroup, and use the ensemble algorithm, FastME (http://www.atgc-montpellier.fr/fastme/) based on BioNJ, and the outgroup to do the phylogenetic analysis for plant families. I will introduce them in detail.
演讲者介绍
孙楠目前是北京雁栖湖应用数学研究院的博士后。她的研究方向包括生物信息学、机器学习和应用数学，在The Innovation, Computational and Structural Biotechnology Journal, BMC Bioinformatics, Frontiers in Cellular and Infection Microbiology, Journal of Computational Biology, Genes等期刊发表多篇论文，参与多项国家自然科学基金及北京市自然科学基金项目，主持中国博士后科学基金第78批面上资助。