1. School of Life Sciences, Nantong University, Nantong, Jiangsu 226019, P.R. China
2. Agricultural Science Institute of Coastal Region of Jiangsu, Yancheng, Jiangsu 224002, P.R. China
3. State Key Laboratory of Cotton Biology, Anyang, Henan 455000, P.R. China
4. Cotton Incorporated, 6399 Weston Parkway, Cary, NC 27513
5. Plant Genome Mapping Laboratory, University of Georgia, Athens, GA 30602, and
6. Department of Crop and Soil Sciences, University of Georgia, Tifton, GA 31793