Sampling of Solanum fruits (IMAGE) Penn State Caption Fruits of plants in the genus Solanum are incredibly diverse in color and size. A new family tree of this genus, created by a team led by Penn State researchers, helps explain this striking diversity and how the fruits might have evolved. Credit João Vitor Messeder / Penn State Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.