Promoter, promoter control elements, and combinations, and uses thereof
The present invention is directed to promoter sequences and promoter control elements, polynucleotide constructs comprising the promoters and control elements, and methods of identifying the promoters, control elements, or fragments thereof. The invention further relates to the use of the present promoters or promoter control elements to modulate transcript levels.
1. An isolated nucleic acid molecule having promoter activity consisting of a nucleotide sequence selected from the group consisting of:
(a) a nucleotide sequence according to SEQ ID NO:19;
(b) a nucleotide sequence consisting of a functional fragment of (a), wherein said fragment has promoter activity; and
(c) a nucleotide sequence having at least 99% sequence identity to one of (a) or (b).
2. A vector construct comprising:
a. a first nucleic acid selected from the group consisting of
i. a nucleotide sequence according to SEQ ID NO:19,
ii. a nucleotide sequence comprising a functional fragment of (i), wherein said fragment has promoter activity; and
iii. a nucleotide sequence having at least 99% sequence identity to one of (i) or (ii); and
b. a second nucleic acid to be transcribed,
wherein said first and second nucleic acid molecules are heterologous to each other and are operably linked together.
3. A host cell comprising an isolated nucleic acid molecule selected from the group consisting of
(a) a nucleotide sequence according to SEQ ID NO:19;
(b) a nucleotide sequence comprising a functional fragment of (a), wherein said fragment has promoter activity; and
(c) a nucleotide sequence having at least 99% sequence identity to one of (a) or (b),
wherein said nucleic acid molecule is flanked by exogenous sequence.
4. A host cell comprising a vector construct of claim 2 .
5. A method of directing transcription in an environment suitable for transcription comprising:
a. introducing a first nucleic acid molecule selected from the group consisting of
i. a nucleotide sequence according to SEQ ID NO: 19,
ii. a nucleotide sequence comprising a functional fragment of (i), wherein said fragment has promoter activity; and
iii. a nucleotide sequence having at least 99% sequence identity to one of (i) or (ii) according to claim 1 ; and
b. introducing a second nucleic acid molecule to be transcribed;
wherein the first and second nucleic acid molecules are heterologous to each other and operably linked together, and wherein the second nucleic acid sequence is transcribed.
6. A plant comprising a vector construct according to claim 2 .
7. The isolated nucleic acid of claim 1 , wherein the promoter activity occurs in response to drought.
8. The isolated nucleic acid of claim 1 , wherein said nucleotide sequence is SEQ ID NO:19 or a functional fragment thereof.
9. The vector construct of claim 6 , wherein said nucleotide sequence is SEQ ID NO:19 or a functional fragment thereof.
10. The method of claim 5 , wherein said nucleotide sequence is SEQ ID NO:19 or a functional fragment thereof.
11. The plant of claim 6 , wherein said nucleotide sequence is SEQ ID NO:19 or a functional fragment thereof.
12. The isolated nucleic acid of claim 1 , wherein said nucleotide sequence is a functional fragment of SEQ ID NO:19.