Modern rose hybrids have a worrying lack of genetic diversity

Intensive breeding since the 19th century has created thousands of varieties of rose, but a reduction in genetic diversity could leave them vulnerable to diseases and climate change

​Intensive breeding since the 19th century has created thousands of varieties of rose, but a reduction in genetic diversity could leave them vulnerable to diseases and climate change Intensive breeding since the 19th century has created thousands of varieties of rose, but a reduction in genetic diversity could leave them vulnerable to diseases and climate change