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Research Project:
BREEDING FOR RESISTANCE TO RENIFORM NEMATODE IN COTTON
Location: Genetics and Precision Agriculture Research
2007 Annual Report
1a.Objectives (from AD-416)
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.
1b.Approach (from AD-416)
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.
3.Progress Report
This report serves to document research conducted under a Reimbursable Cooperative Agreement between ARS and Cotton Incorporated. Additional details of research can be found in the report for in-house project 6406-21000-010-00D, "Germplasm Enhancement and Genetic Improvement in Cotton." Communications involved an annual research plan submitted at the beginning of year and quarterly reports are filed by ARS with Cotton Incorporated. This research is designed to develop reniform nematode resistant plants from a wild photoperiodic source, GB 713.
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Last Modified: 11/07/2008
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