9123 Development of New Cotton Genotypes Resistant to the Reniform Nematode Utilizing Marker BNL 3279

Thursday, January 8, 2009: 11:30 AM
Conf. Rooms 1-4 (Marriott Rivercenter Hotel)
Ted P. Wallace1, Peggy Thaxton2, Brian Scheffler3, Jodi Scheffler4, Alois A. Bell5, Jim Nichols2 and Susan Shi2, (1)Mississippi State University, Mississippi State, MS, (2)Mississippi State University, Stoneville, MS, (3)USDA-ARS-CGRU, Stoneville, MS, (4)USDA-ARS, Stoneville, MS, (5)USDA-ARS, College Station, TX
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Six cross combinations and BC1 populations were made at Stoneville, MS and College Station, TX between reniform resistant line LONREN-1 and highly adapted germplasm lines including nectariless and root-knot nematode resistance lines developed at Mississippi State University.  In 2008, segregating populations were evaluated for presence of the gene for resistance to reniform nematodes utilizing public domain marker BNL 3279.  Selected plants will be evaluated for agronomic performance with the goal of releasing adapted reniform nematode resistant germplasm lines.