Du Xiongming, Liu Fang, Wang Kunbo, Jia Yinhua, Zhou Zhongli, He Shoupu, Gong Wenfang, Pan Zhao’e, Wang Liru, Geng Xiaoli, Pang Baoyin
During the 12th Five-Year-Plan period, 1220 cotton accessions including 986 Gossypium hirsutum L. accessions, 176 G. barbadense L. accessions and 58 G. aboreum L. accessions were collected through exploring in the southwest China, islands of South China Sea, and foreign origin center of wild cotton. All the accessions have been preserved in the National Medium-term Gene Bank of Cotton in China. Evaluation of main agronomic traits were carried out in the fields and labs of Anyang, Sanya and Alaer. SSR markers and resequencing were used to evaluate these collected accessions. Abundant of genes were found to be associated with the fiber quality, verticillium wilt resistance, drought tolerance and glyphosate-resistance. New accessions with high yield, excellent fiber quality and stress resistance, were also developed through radiation mutation, interspecific and multiple hybridization. All the accessions were totally released 19 191 times to the researchers in the colleges, institutes and companies after field display.