David Nield, Science Alert, 9 September 2017, https://www.sciencealert.com/now-scientists-are-using-crispr-to-change-the-colour-of-flowers
The Japanese morning glory plant has traditionally had violet flowers, however using CRISPR to disrupt a single gene, scientists have altered the flower color to white. White morning glories can be found; however, it took 850 years for the white version to appear. CRISPR accomplished the task in less than 12 months. This is the first time CRISPR has been used to alter flower color in higher plants.