This site describes some rare and threatened tree species native to the eastern United States. For each species, there is a description of its characteristics, its ecology, its native range, and its conservation status.

Interleukin, imgenex corp. develops novel reagents, including antibodies, gene and protein expression systems, and arrays of various cells and tissues for use in studies of functional genomics.

Learn about epigenetics, epigenomics and the histone code, and techniques and protocols to study these changes. Protocols and links on DNA methylation specific PCR, chromatin immunoprecipitation, microarray, bisulfite DNA, 5-aza-2'-deoxycytidine treatments and sodium bisulfite DNA sequencing.