OLSON ECOLOGICAL GENOMICS LAB
at Texas Tech University
Department of Biological Sciences
RESEARCH
Our work focuses on the interplay between genetics and the environment and how they interact to influence the distribution and abundance of plant species. Underlying this entire endeavor, we contribute to the empirical understanding of the evolutionary process and have developed new insights into understanding adaptation, speciation, and the spread of selfish genetic elements.
Current Projects
Plant Sex Chromosomes and Breeding Systems
We study how large-scale genome structures evolve. Because many plant species have only recently evolved sex chromosomes, investigating plants allows us to study the early stages of sex chromosome evolution and compare sex chromosomes that have evolved independently in different taxonomic groups. Our research is focused on the Salicaceae plant family, which includes poplars, aspens, cottonwoods and willows, which all share a single origin of dioecy. This research uses whole genome sequencing, bioinformatics, and population genetic analyses and is conducted with colleagues our US-China Joint Lab.
Local Adaptation and Climate Change
Local adaptation is a fundamental process generating divergence among populations and diversity within species. Our current work aims to understand the extent of local adaptation in boreal forest trees and how local adaptation may influence species responses to climate change. This research combines the strengths of common garden studies of genetics and genomic analysis for understanding patterns of diversity.
Evolution of Invasive Species
Invasive species present ecological and economic challenges, but also present the opportunity to study evolutionary factors that influence range expansion after the colonization of a new geographic region. Saltcedar (Tamarix) is among the most successful plant invasions in the American southwest. We study how genetic factors have influenced this invasion and use genetic analyses to uncover factors that influenced its invasion history.
JOIN US!
We welcome new motivated graduate students interested in exploring topics in plant ecological genetics. We are now recruiting for next fall. Undergraduate opportunities are available most semesters. We currently do not have postdoctoral opportunities, but are willing to work with you to apply for fellowships. Please contact us adjoin our endeavors.
