Assembling, Visualizing, and Analyzing the Tree of Life

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Connecting millions of data points in a graph database

Creating ‘Facebook’ for species

Neo4j screenshotThe Open Tree of Life database is not just a list with about two million species. Information is added about their special characteristics and possible relationships with others as well. “It may become tens or hundreds of million pieces of data when we are all done.”

Stephen Smith, an evolutionary biology professor at the University of Michigan, is working together with the other researchers of the Open Tree of Life project to develop the programs and tools that will be used to construct the full tree of life. Scientists from all over the world can then synthesize all the information in the database.

“We are currently building the back-end of the Open Tree of Life. We need to create software that allows us to put all our information in a graph network, so that we can easily retrieve the information that researchers are specifically looking for.” (more…)


You don’t want to build a new tree from scratch?

‘Let the computer do the work’

Creating a phylogenetic tree is no easy task. It usually involves a complex synthesis of multiple datasets, but it leads to much satisfaction when all work is done—until new data come in.

Then, the process typically starts all over again: building a new tree from scratch.

Mark Holder, a professor of statistical phylogenetics at Kansas University and one of the investigators of the Open Tree of Life project, maintains that there is a real need for scientists to have access to digital tools that save them from doing quite a few labor-intensive procedures.

“In the past, researchers combined information from different trees and then analyzed the data. But they never made good computer systems that allowed for continuous updating. They would not be able to see how an entire tree would look like when they added more data or another individual tree. In that case, they had to start over.”

(more…)


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