探索食肉植物基因组水平上的分子趋同进化

探索基因组水平上的分子趋同进化是现代进化生物学的研究热点之一。食肉植物起源是宏观趋同进化的经典案例之一。石竹目、杜鹃花目与唇形目中的食肉植物类群，因其丰富的物种数量与多样的捕食方式，是现存食肉植物类群中最具有代表性的3个类群。因此，本项目选取了来自于这3个目的6个代表性物种，即阿帝露茅膏菜、印度猪笼草、紫瓶子草、美杜莎捕虫树、圆切捕虫堇与长叶狸藻，作为研究对象；并将从3个方面，即基因氨基酸位点趋同、基因家族变化趋同以及基因表达模式趋同，来探索发现食肉植物基因组水平上的分子趋同证据。

Exploration of molecular convergent evolution at the genome-level is one of the hot topics in modern evolutionary biology. The evolution of the plant carnivory is one of the classic examples in macroscopic convergence evolution. The groups of the carnivorous plants from Caryophyllales, Ericales and Lamiales are the most representative groups of the existing carnivorous plants, due to their abundant species and various trap patterns. Therefore, six representative species from above three orders, i.e., Drosera adelae, Nepenthes khasiana, Sarracenia purpurea, Roridula gorgonias, Pinguicula cyclosecta and Utricularia longifolia, are chosen as the research objects in this study for performing comparative genome analysis to explore the molecular convergennt evolution of the plant carnivory, based on the following three aspects, genic amino acid site convergence, gene family change convergence and gene expression pattern convergence.