Potatoes' Resistance to Late Blight May Be in Their Mexican Genes.(Brief Article)

From: Agricultural Research | Date: September 1, 2000| Author: | Copyright information

All potatoes are related to each other, more or less. Some species are like brothers and sisters; others are distant cousins. One very wild Mexican cousin is Solanum pinnatisectum. Found in central Mexico, this species may be a good source of resistance against Phytophthora infestans--the fungus that causes late blight. This disease resulted in the 19th-century Irish potato famine.

Finding and making use of resistance to late blight is important because the disease costs potato growers worldwide about $3 billion annually, according to the International Potato Center in Lima, ...

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