Chinese Bulletin of Botany ›› 2017, Vol. 52 ›› Issue (5): 560-567.DOI: 10.11983/CBB16129

• EXPERIMENTAL COMMUNICATIONS • Previous Articles     Next Articles

Effect of Cytoplasmic Male Sterility on Main Characters of Cotton

Cunpeng Zhao, Zhaoxiao Wang, Kaihui Wang, Suen Liu, Junyi Geng, Baosheng Guo*   

  1. Key Laboratory of Biology and Genetic Improvement of Cotton in Huanghuaihai Semiarid Area, Ministry of Agriculture, National Cotton Improvement Center Hebei Branch, Cotton Research Institute of Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
  • Received:2016-06-12 Accepted:2016-11-11 Online:2017-09-01 Published:2017-07-10
  • Contact: Baosheng Guo

Abstract: The use of a cotton cytoplasmic male sterility (CMS) line can lead to breeding high-quality cotton seeds and also improve the efficiency of the preparation and decrease the cost of seed production. This study used the JI 2658 and JI 2658A cotton lines, which have the same nuclear background but different cytoplasm as female parents, with another six restorer lines as the male parent; 12 crosses were made according to one-to-one correspondence. The F1 hybrids were used to study the cotton cytoplasmic effects on agronomic traits, disease resistance, fat and protein content, fiber quality and yield. The CMS cytoplasm effects of the 2658A line on cotton hybrids mainly involve lint yield, verticillium wilt resistance and fat content-related characters. As compared with controls, crosses showed reduced lint yield and fat content of seeds by 1.61% and 2.88% and verticillium wilt resistant increased by 18.29%. These results are preliminary in understanding the CMS cytoplasm effects on upland cotton and will be important for using upland cotton CMS.

Key words: cytoplasmic male sterility (CMS), cotton, cytoplasmic effect, JI 2658A