A database is defined as a structured collection of data which is managed to meet the needs of a community of users.
Biological databases are libraries of life sciences information, collected from scientific experiments, published literature, high throughput experiment technology, and computational analyses. They contain information from research areas including genomics, proteomics, metabolomics, microarray gene expression, and phylogenetics.
Conventional taxonomic databases are databases consisting of scientific and common names for species of taxa from all biological kingdoms
Modern Taxonomic database is hierarchical and sequence-based, aiming to centralize the classification of all organisms represented in the databases with at least one nucleotide or protein sequence.
Phylogenetic Principles:
Evolution is regarded as a branching process, whereby populations are altered over time and may speciate into separate branches, hybridize together, or terminate by extinction.
The problem posed by phylogenetics is that genetic data are only available for the present, and fossil records (osteometric data) are sporadic and less reliable and our knowledge of how evolution operates is used to reconstruct the full tree.
Various other efforts exist at different places and different portals to create a taxonomy resource, such as:
NEWT
NCBI taxonomy browser
The Tree of Life project
Species 2000
International Organization for Plant Information
Integrated Taxonomic Information System to reconstruct the full tree.
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