Unraveling the Threads of Cotton: A Genomic Journey

Cotton, the world's leading nonfood crop, has a long history of domestication tracing back over 4,000 years in the Yucatan peninsula. Researchers have identified the genomic origins of modern upland cotton, highlighting its reduced genetic diversity compared to wild species and its global economic significance.

A team of scientists has decoded the evolutionary history of cotton, the world's most widespread natural fiber. Known for its economic significance, cotton originates from the ancient domestication of wild cotton species in the Yucatan Peninsula over 4,000 years ago, according to new genomic research.

This study, led by botanist Jonathan Wendel and his team, utilized genetic comparisons to pinpoint upland cotton, Gossypium hirsutum, as domesticated in Mexico. This species constitutes about 90% of global cotton production today. Despite its widespread use, domesticated cotton displays less genetic diversity than wild counterparts, impacting its adaptability.

Scientists highlighted the indispensable role of early civilizations in selecting traits that enhanced productivity, leading to the cotton variety we know today. The research underscores the importance of wild cotton species in preserving genetic traits potentially lost during domestication, which are valuable for modern agricultural improvements.