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In order to see in different wavelengths, there needs to be enough light around and thats one of the arguments for why we can see in the dark really wellwe have this enzymatic recycling system that many invertebrates dont seem to have, said Daugherty, a researcher in the Department of Molecular Biology. Eyes are diverse and complicated, and weve gone down this path because of this system.

With more genomes from more organisms becoming available, the researchers believe that other critical functions and systems will similarly trace their roots to bacteria.

This reshapes the way that we think about evolution and the way we think about complex structures that seem like theyve emerged out of nowhere, said Daugherty.

In addition to Kalluraya, a Selma and Robert Silagi Award for Undergraduate Excellence winner at UC San Diego and now a graduate student at MIT, Weitzel, Tsu and Daugherty coauthored the paper. The research was supported by the National Institutes of Health (R35 GM133633 and T32 GM007240), the Pew Biomedical Scholars program, Burroughs Wellcome Fund Investigators in the Pathogenesis of Infectious Disease program, UC San Diegos Halcolu Data Science Institute and the UC San Diego Triton Research and Experimental Learning Scholars program.

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Eye-opening Origin Story: Scientists Trace Key Innovation in Our ... - University of California San Diego