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Conditional sterility in plants

Patent ·
OSTI ID:1015196
The present disclosure provides methods, recombinant DNA molecules, recombinant host cells containing the DNA molecules, and transgenic plant cells, plant tissue and plants which contain and express at least one antisense or interference RNA specific for a thiamine biosynthetic coding sequence or a thiamine binding protein or a thiamine-degrading protein, wherein the RNA or thiamine binding protein is expressed under the regulatory control of a transcription regulatory sequence which directs expression in male and/or female reproductive tissue. These transgenic plants are conditionally sterile; i.e., they are fertile only in the presence of exogenous thiamine. Such plants are especially appropriate for use in the seed industry or in the environment, for example, for use in revegetation of contaminated soils or phytoremediation, especially when those transgenic plants also contain and express one or more chimeric genes which confer resistance to contaminants.
Research Organization:
Univ. of Georgia, Athens, GA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG07-96ER20257
Assignee:
University of Georgia Research Foundation, Inc. (Athens, GA)
Patent Number(s):
7,667,096
Application Number:
10/559,301
OSTI ID:
1015196
Country of Publication:
United States
Language:
English

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