In Vitro Regeneration Capacity of Corn and Teosinte Genotypes
Germplasm sources from the Maydea Tribe are being utilized for maize improvement. Several species of this Tribe have been introduced into a research program and are being exploited through conventional breeding, tissue culture, and techniques of molecular biology, with the aim of gaining access to new corn genotypes. Teosinte species, as well as isogenic lines and commercial hybrids of Zea mays, are being used for tissue culture screening for regeneration capacity. Among teosinte materials, Zea diploperennis seems very attractive due to its perennial habit, whereas the annual Zea mexicana is the closest relative to domesticated corn. Interspecific hybrids from corn and teosinte species are also being utilized in this program.