Project Number: 6406-21000-012-28
Project Type: Reimbursable

Start Date: Jan 01, 2007
End Date: Dec 31, 2008

Objective:
Develop germplasm lines of upland cotton with resistance to reniform nematode from a Gossypium barbadense source. Discover the genetics of this resistance trait and develop DNA based markers for the resistance trait that can be used in marker assisted breeding programs designed to develop cultivars with resistance to reniform nematode.

Approach:
A high level of resistance to reniform nematode exists in GB-713, a Gossypium barbadense wild line of cotton. This line will be crossed with upland cotton and the resistance trait will be transferred to upland cotton germplasm. The inheritance of this resistance trait in upland cotton will be determined through crosses and backcrosses. Molecular markers will be discovered that are linked to this trait for use in marker assisted selection in breeding programs. Resistant upland cotton germplasm lines will be developed that are useful as parents in breeding programs.