sentence: All the plant material was grown perennially at National Wild Cotton Nursery in Sanya city , Hainan Island , China , which is supervised by the Institute of Cotton Research of Chinese Academy of Agricultural Sciences located in Anyang City , Henan Province , China.The Pima 90-53 BAC library that was screened in this paper was provided by Prof. Zhiying Ma ( Hebei Agricultural University , China ) .