Invention Grant
- Patent Title: Regulatory element conferring tapetum specificity
- Patent Title (中): 赋予绒毡层特异性的调节元素
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Application No.: US477978Application Date: 1995-06-07
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Publication No.: US5837850APublication Date: 1998-11-17
- Inventor: Gary A. Huffman
- Applicant: Gary A. Huffman
- Applicant Address: IA Des Moines
- Assignee: Pioneer Hi-Bred International, Inc.
- Current Assignee: Pioneer Hi-Bred International, Inc.
- Current Assignee Address: IA Des Moines
- Main IPC: A01H5/00
- IPC: A01H5/00 ; C07K14/415 ; C12N5/10 ; C12N15/09 ; C12N15/29 ; C12N15/82 ; A01H1/00 ; C12N15/00
Abstract:
A 94 base pair DNA regulatory element that confers anther tapetum-specific gene expression has been discovered, isolated, and characterized. Additional tapetum-specific regulatory elements have been developed by mutating the 94 base pair anther box. These tapetum-specific regulatory elements can be used to control the expression of a foreign gene that disrupts the function of tapetal cells. Similarly, the combination of at least one tapetum-specific regulatory element and at least one anther-specific regulatory element can be used to disrupt pollen production in anthers. Thus, the control of maize pollen production can be achieved by using a tapetum-specific regulatory element to produce male-sterile plants. Various methods can be used to restore male fertility in the F1 generation of such male-sterile plants.
Public/Granted literature
- US5113334A High efficiency converter Public/Granted day:1992-05-12
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