These genetically modified limes, which contain genes from the blood orange, might represent the first step towards developing a new type of blood orange that could grow in Florida's warm, humid climate. Adding blood oranges to the list of Florida citrus could provide a bright spot in a bleak prognosis for the industry. As Florida's citrus crops are increasingly threatened by bacteria, farmers are more open to disease-resistant versions of the fruit. That could make them welcome to modified versions of blood oranges, which, if they could thrive in Florida's hot and humid conditions, would increase the farmers' yields and income. However, it's still not clear if consumers will be as enthusiastic.