maize-teosinte hybrid (IMAGE) Cold Spring Harbor Laboratory Caption Teosinte Pollen Drive (TPD) is a selfish genetic system in maize-teosinte hybrids, which allows only pollen with both toxin and antidote to survive. Here, we see the pollen-producing part of the maize-teosinte hybrid. Image: Jon Cahn/Martienssen lab Credit Jon Cahn/Martienssen lab Usage Restrictions Attribution required License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.