Loren Rieseberg

Dr. Loren Rieseberg is a Professor in the Department of Botany at the University of British Columbia (UBC), affiliated with the Biodiversity Research Centre. His research focuses on evolutionary genomics, speciation, and plant adaptation, particularly in sunflowers and other Compositae species. He leads the Rieseberg Lab, which integrates genomic, computational, and ecological approaches to study plant evolution, hybridization, and crop improvement.

Key research areas include:

• Evolutionary processes driving speciation and adaptation
• Role of hybridization in plant evolution and invasiveness
• Genomic basis of ecotype divergence and crop domestication
• Climate resilience and genetic resources for sunflower improvement

His work highlights how structural variants like chromosomal inversions contribute to adaptation and reproductive isolation. Recent studies emphasize the genomic mechanisms underlying invasive species success and the application of evolutionary principles to crop breeding. Dr. Rieseberg collaborates globally, with projects spanning North America, South America, and Europe.

Notable achievements include sequencing the sunflower genome and identifying genomic regions critical for stress tolerance and hybrid vigor. His lab’s pre-bred lines for agronomic traits have been widely adopted in sunflower breeding programs worldwide.