Regulatory Nucleic Acid Molecules for Reliable Gene Expression in Plants
AssigneeBASF Plant Science GmbH
InventorsJulia Verena Hartig, Maarten Hendrik Stuiver, Josef Martin Kuhn, Alrun Nora Burgmeier
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Abstract
The invention relates to methods and means for enhancing the reliability of expression in transgenic plants by reducing the coefficient of variation of expression and/or the number of no- or low-expressing plants in a population of plants.
Claims20
A method for reducing the coefficient of variation of expression in a population of plants comprising the steps of:
- a) providing a recombinant nucleic acid comprising at least one Reliability Enhancing Nucleic Acid (RENA) molecule selected from the group consisting of:
- i) a nucleic acid molecule having a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- ii) a nucleic acid molecule having a sequence with an identity of at least 80% to a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- iii) a fragment of at least 100 consecutive bases of a nucleic acid molecule of i) or ii) which has reliability enhancing activity as the corresponding nucleic acid molecule having the sequence of selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- iv) a nucleic acid molecule hybridizing under conditions equivalent to hybridization in 7% sodium dodecyl sulfate (SDS), 0.5 M NaPO4, 1 mM EDTA at 50° C. with washing in 2×SSC, 0.1% SDS at 50° C. to a nucleic acid molecule comprising at least 50 consecutive nucleotides of the complement of a reliability enhancing nucleic acid having a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- or
- v) a nucleic acid molecule which is the complement or reverse complement of any of the previously mentioned nucleic acid molecules under i) to iv);
- b) functionally linking the RENA molecule as defined under i) to v) to a promoter and/or a nucleic acid molecule of interest wherein at least the promoter is heterologous to the RENA molecule;
- c) integrating the RENA molecule functionally linked to a promoter and/or a nucleic acid molecule of interest in the genome of plant cells, plants or parts thereof;
- and
- d) regenerating a population of plants from the transgenic plant cells, plants or parts thereof produced in step c);
- wherein the molecules as defined under ii) to v) reduce the variation of expression at by least 10% of the corresponding nucleic acid molecule having the sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- and
- wherein the population of independent primary transformant plants exhibit an at least 10% lower coefficient of variation of expression of the nucleic acid molecule of interest compared to a population of independent primary transformant plants comprising in their genome a respective recombinant nucleic acid construct not comprising the respective RENA molecule as defined in i) to v).
A method for producing a population of plants with reduced percentage of low-expressing plants comprising the steps of:
- a) providing a recombinant nucleic acid construct comprising at least one RENA molecule selected from the group consisting of:
- i) a nucleic acid molecule having a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- ii) a nucleic acid molecule having a sequence with an identity of at least 80% to a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- iii) a fragment of at least 100 consecutive bases of a nucleic acid molecule of i) or ii) which has reliability enhancing activity as the corresponding nucleic acid molecule having the sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- iv a nucleic acid molecule hybridizing under conditions equivalent to hybridization in 7% sodium dodecyl sulfate (SDS), 0.5 M NaPO4, 1 mM EDTA at 50° C. with washing in 2×SSC, 0.1% SDS at 50° C. to a nucleic acid molecule comprising at least 50 consecutive nucleotides of the complement of a reliability enhancing nucleic acid having a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- and
- v) a nucleic acid molecule which is the complement or reverse complement of any of the previously mentioned nucleic acid molecules under i) to iv);
- functionally linked to a promoter and/or a nucleic acid molecule of interest wherein at least the promoter is heterologous to the RENA molecule;
- b) integrating said recombinant nucleic acid construct in the genome of plant cells, plants or parts thereof;
- and
- c) regenerating a population of independent primary transformant plants from the transgenic plant cells, plants or parts thereof produced in step b);
- wherein the population of plants has an at least 5% reduced percentage of plants exhibiting low expression of the nucleic acid of interest compared to a population of plants comprising in their genome a respective recombinant nucleic acid construct not comprising the respective RENA molecule as defined in a) i) to v).
A method for reducing the number of low expressing plants in a population of independent primary transformant plants, comprising the steps of
- a) providing a recombinant nucleic acid construct comprising at least one RENA molecule selected from the group consisting of:
- i) a nucleic acid molecule having a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- ii) a nucleic acid molecule having a sequence with an identity of at least 80% to a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- iii) a fragment of at least 100 consecutive bases of a nucleic acid molecule of i) or ii) which has reliability enhancing activity as the corresponding nucleic acid molecule having the sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- iv) a nucleic acid molecule hybridizing under conditions equivalent to hybridization in 7% sodium dodecyl sulfate (SDS), 0.5 M NaPO4, 1 mM EDTA at 50° C. with washing in 2×SSC, 0.1% SDS at 50° C. to a nucleic acid molecule comprising at least 50 consecutive nucleotides of the complement of a reliability enhancing nucleic acid having a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- and
- v) a nucleic acid molecule which is the complement or reverse complement of any of the previously mentioned nucleic acid molecules under i) to iv);
- functionally linked to a promoter and/or a nucleic acid molecule of interest wherein at least the promoter is heterologous to the RENA molecule;
- b) integrating said recombinant nucleic acid construct in the genome of plant cells, plants or parts thereof;
- and
- c) regenerating independent primary transformant plants from the transgenic plant cells, plants or parts thereof produced in step b);
- wherein the number of low expressing independent primary transformant plants is reduced by at least 5% compared to a population of independent primary transformant plants comprising in their genome a respective recombinant nucleic acid not comprising the respective RENA molecule as defined in a) i) to v).
A recombinant expression construct comprising at least one RENA molecule selected from the group consisting of:
- i) a nucleic acid molecule having a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- ii) a nucleic acid molecule having a sequence with an identity of at least 80% to a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- iii) a fragment of at least 100 consecutive bases of a nucleic acid molecule of i) or ii) which has reliability enhancing activity as the corresponding nucleic acid molecule having the sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- iv) a nucleic acid molecule hybridizing under conditions equivalent to hybridization in 7% sodium dodecyl sulfate (SDS), 0.5 M NaPO4, 1 mM EDTA at 50° C. with washing in 2×SSC, 0.1% SDS at 50° C. to a nucleic acid molecule comprising at least 50 consecutive nucleotides of the complement of a reliability enhancing nucleic acid having a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- and
- v) a nucleic acid molecule which is the complement or reverse complement of any of the previously mentioned nucleic acid molecules under i) to iv);
- functionally linked to a promoter and/or a nucleic acid molecule of interest wherein at least the promoter is heterologous to the RENA molecule.
A transgenic cell or transgenic plant or part thereof comprising:
- at least one RENA molecule selected from the group consisting of:
- i) a nucleic acid molecule having a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- ii) a nucleic acid molecule having a sequence with an identity of at least 80% to a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- iii) a fragment of at least 100 consecutive bases of a nucleic acid molecule of i) or ii) which has reliability enhancing activity as the corresponding nucleic acid molecule having the sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- iv) a nucleic acid molecule hybridizing under conditions equivalent to hybridization in 7% sodium dodecyl sulfate (SDS), 0.5 M NaPO4, 1 mM EDTA at 50° C. with washing in 2×SSC, 0.1% SDS at 50° C. to a nucleic acid molecule comprising at least 50 consecutive nucleotides of the complement of a reliability enhancing nucleic acid having a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- and
- v) a nucleic acid molecule which is the complement or reverse complement of any of the previously mentioned nucleic acid molecules under i) to iv);
- functionally linked to a heterologous promoter and/or a heterologous nucleic acid of interest to be expressed.
(canceled)
A method for the production of an agricultural product by introducing a RENA molecule selected from the group consisting of:
- i) a nucleic acid molecule having a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- ii) a nucleic acid molecule having a sequence with an identity of at least 80% to a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- iii) a fragment of at least 100 consecutive bases of a nucleic acid molecule of i) or ii) which has reliability enhancing activity as the corresponding nucleic acid molecule having the sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- iv) a nucleic acid molecule hybridizing under conditions equivalent to hybridization in 7% sodium dodecyl sulfate (SDS), 0.5 M NaPO4, 1 mM EDTA at 50° C. with washing in 2×SSC, 0.1% SDS at 50° C. to a nucleic acid molecule comprising at least 50 consecutive nucleotides of the complement of a reliability enhancing nucleic acid having a sequence selected from SEQ ID NOS:
- 1 to 16 or 94 to 116666;
- and
- v) a nucleic acid molecule which is the complement or reverse complement of any of the previously mentioned nucleic acid molecules under i) to iv);
- into a plant, growing the plant, harvesting and processing the plant or parts thereof.
Dependencies are inferred from the claim text.