Grass genome reveals ancient origins of key crops
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An international team of scientists assembled a detailed genome for Streptochaeta spicata, a tropical grass from Guyana, to study the early evolution of the grass family.
This grass holds a key position on the grass family tree, allowing researchers to examine the genetic makeup of their common ancestor. Grasses include vital food crops like rice, wheat, and maize, and understanding their history helps scientists improve food security and sustainability.
The researchers compared the Streptochaeta genome to other grass genomes and found new details about genetic events that shaped the family. They determined that an ancient doubling of genes still influences modern grasses, explaining why discoveries in one grass species often apply to others. Kellogg explained that reconstructing the early history of grasses has been challenging, but this research provides a clearer picture of how the family diversified.
The team’s work gives scientists a basis for understanding the development of important traits in grasses over time.
