A PhD graduate research assistantship is available to study the nature and dynamics of interspecific hybridization between Sorghum bicolor (crop sorghum) and its weedy congener S. halepense (johnsongrass), at Texas A&M University, College Station, TX. The position is available immediately, but can wait until the fall term (Sep 2018) for the right candidate. The student will conduct research under laboratory, greenhouse, and field settings aimed at understanding the nature of hybridization between sorghum and johnsongrass as well as evaluate progeny characteristics and fitness. The student will interact and collaborate with breeders, cytogeneticists and molecular biologists within the university. The preferred candidate must hold or be currently working towards an MS degree in ecology, evolutionary biology, weed science or a related field and have a strong research interest in crop-wild hybridization. Application details: Please e-mail your CV, a copy of academic transcript (unofficial), GRE/TOEFL scores (GRE is a must) and contact details of three referees to Dr. Muthu Bagavathiannan (mu...@tamu.edu). For best consideration, please apply by Feb 15, 2018 but the process may continue until a suitable candidate is identified. Please e-mail any queries regarding this position to 'mu...@tamu.edu'.