中国及泛喜马拉雅地区芭蕉属系统发育及分类学研究

芭蕉属植物包含栽培香蕉的野生近缘种。芭蕉属植物分类及系统发育研究，对于香蕉野生祖先及其近缘种的种质资源收集、保护及抗性筛选、基因挖掘等具有重要意义。中国及泛喜马拉雅地区是芭蕉属植物物种多样性中心及起源分化中心。随着近二十年大量芭蕉属新种的发表，该地区芭蕉属植物急需进行分类修订。芭蕉属分类学主要存在的问题：1）标本采集困难；2）不少新种在描述时标本非常缺乏；3）不少新种的发表缺乏对性状变异的充分把握。以往芭蕉属系统发育，都只采用了少数分子片段或少数物种，物种代表性不够。本项目拟对中国及泛喜马拉雅地区的芭蕉属植物，通过野外调查，标本采集，文献及标本分析，对该地区芭蕉属植物进行系统的整理和分类修订。同时，采用靶向杂交富集高通量测序技术（Hyb-seq）和全面取样（每个种2个个体），进行系统发育重建，确定种间亲缘关系，为物种界定提供参考依据，并分析重要性状的演化趋势，估算物种分化速率。

The genus Musa is the crop wild relatives (CWRs, crop wild relatives) of cultivated banana. The taxonomy and phylogeny of the genus Musa are of great significance for the collection and conservation of banana germplasm. China and the Pan-Himalayan region is the center of species diversity for the genus Musa. With the publishment of a large number of new Musa species in the past twenty years, the genus Musa in this region is urgently needed to be revised. The main problems of Musa taxonomy are: 1) specimens collection difficult; 2) lack of enough specimens when many new species published; 3) lack of statistics for morphological trait variation for many new species. The phylogenetic resolution of the genus Musa remains poor due to generally limited molecular data and incomplete taxon sampling of previous studies. This project intends to systematically revise the genus Musa in China and Pan-Himalayas region through field investigation, specimen collection and trait analysis. And, Hyb-seq sequencing technology and comprehensive sampling will be used to establish a framework for future studies on Musa classification, evolution, and diversification.