FGF(Fishing Gene Family) is a useful tool for finding gene family and plotting phylogenetic tree. Besides these, it also gives the gene duplication evolutional information. We named it Fishing Gene Family (FGF), because using a gene as bait you can fish all the gene family and the related information. FGF can be widely used in the analysis of gene duplication and gene family evolution,especially for the research of new functional gene by duplication.
Blast (Basic Local Alignment Search Tool) is a set of similarity search programs designed to explore all of the available sequence database s regardless of whether the query is protein or DNA. It is more than a tool to view sequences aligned with each other or to calculate perce nt homology, but a program to locate regions of sequence similarity with a view to comparing structure and function.