Patents by Inventor Zhaohai Du

Zhaohai Du has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Molecular breeding method for improving cotton fiber strength by using chr.7 single QTL segment substitution line
    Patent number: 10667479
    Abstract: A cotton molecular breeding method includes (1) obtaining a chr.7 single QTL segment substitution line with high fiber strength, and (2) using the obtained chr.7 single QTL segment substitution line as a non-recurrent parent () to cross with a recurrent parent (?) to obtain an F1 generation. Then (3) the F1 generation is back-crossed with the recurrent parent to obtain a BC1F1 generation, and (4) plants of the BC1F1 generation are screened for plants carrying the chr.7 single QTL segment, and then the screened plants are back-crossed with the recurrent parent for 2-4 times to obtain a BCnF1 generation. The method also includes (5) screening plants of the BCnF1 generation for plants carrying the chr.7 single QTL segment, and selfing the screened plants for 1-3 times to obtain a bred line BCnFm having the high cotton fiber strength.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: June 2, 2020
    Assignee: Cotton Research Center of Shandong Academy of Agricultural Sciences
    Inventors: Jun Zhang, Yu Chen, Furong Wang, Chuanyun Zhang, Guodong Liu, Jingxia Zhang, Zhaohai Du
  • MOLECULAR BREEDING METHOD FOR IMPROVING COTTON FIBER STRENGTH BY USING CHR.7 SINGLE QTL SEGMENT SUBSTITUTION LINE
    Publication number: 20190223398
    Abstract: A cotton molecular breeding method includes (1) obtaining a chr.7 single QTL segment substitution line with high fiber strength, and (2) using the obtained chr.7 single QTL segment substitution line as a non-recurrent parent () to cross with a recurrent parent (?) to obtain an F1 generation. Then (3) the F1 generation is back-crossed with the recurrent parent to obtain a BC1F1 generation, and (4) plants of the BC1F1 generation are screened for plants carrying the chr.7 single QTL segment, and then the screened plants are back-crossed with the recurrent parent for 2-4 times to obtain a BCnF1 generation. The method also includes (5) screening plants of the BCnF1 generation for plants carrying the chr.7 single QTL segment, and selfing the screened plants for 1-3 times to obtain a bred line BCnFm having the high cotton fiber strength.
    Type: Application
    Filed: July 24, 2018
    Publication date: July 25, 2019
    Inventors: Jun Zhang, Yu Chen, Furong Wang, Chuanyun Zhang, Guodong Liu, Jingxia Zhang, Zhaohai Du