Tobacco plant and method for manufacturing same
First Claim
1. A tobacco plant comprising a mutation which causes functional suppression ofat least one of a gene containing, as a coding region, a polynucleotide encoding a polypeptide having a sequence identity of 90% or higher with an amino acid sequence represented by SEQ ID NO. 1 and a gene containing, as a coding region, a polynucleotide encoding a polypeptide having a sequence identity of 90% or higher with an amino acid sequence represented by SEQ ID NO. 3;
- wherein the functional suppression of said at least one gene,a) suppresses development of secondary axillary buds which develop after removal of primary axillary buds, without suppressing development of primary axillary buds,b) decreases the abundance of said polypeptide in comparison with a wild-type plant, andc) promotes degradation of mRNA transcribed from said at least one gene;
and wherein the mutation is an insertion, into a region of the plant'"'"'s genome outside of the region of the said at least one gene, of a polynucleotide expressing a factor which promotes the degradation of said mRNA, said factor being an antisense RNA molecule or an RNAi molecule.
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Abstract
The present invention provides a tobacco plant which is suitable for cultivation for harvesting leaf tobaccos. The present invention includes (i) a tobacco plant in which a mutation for suppressing the development of axillary buds is introduced and (ii) a method of producing the tobacco plant.
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Citations
30 Claims
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1. A tobacco plant comprising a mutation which causes functional suppression of
at least one of a gene containing, as a coding region, a polynucleotide encoding a polypeptide having a sequence identity of 90% or higher with an amino acid sequence represented by SEQ ID NO. 1 and a gene containing, as a coding region, a polynucleotide encoding a polypeptide having a sequence identity of 90% or higher with an amino acid sequence represented by SEQ ID NO. 3; -
wherein the functional suppression of said at least one gene, a) suppresses development of secondary axillary buds which develop after removal of primary axillary buds, without suppressing development of primary axillary buds, b) decreases the abundance of said polypeptide in comparison with a wild-type plant, and c) promotes degradation of mRNA transcribed from said at least one gene; and wherein the mutation is an insertion, into a region of the plant'"'"'s genome outside of the region of the said at least one gene, of a polynucleotide expressing a factor which promotes the degradation of said mRNA, said factor being an antisense RNA molecule or an RNAi molecule. - View Dependent Claims (3, 10, 19, 23, 27)
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2. A tobacco plant in which a mutation is introduced into a genome, which mutation causes functional suppression of
at least one of a gene containing, as a coding region, a polynucleotide encoding a polypeptide having a sequence identity of 90% or higher with an amino acid sequence represented by SEQ ID NO. 1 and a gene containing, as a coding region, a polynucleotide encoding a polypeptide having a sequence identity of 90% or higher with an amino acid sequence represented by SEQ ID NO. 3; -
wherein the functional suppression of said at least one gene suppresses development of secondary axillary buds, which develop after removal of primary axillary buds, without suppressing development of primary axillary buds, and the mutation is introduced into the at least one gene. - View Dependent Claims (4, 5, 6, 7, 8, 9, 11, 20, 24, 28)
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12. A method of producing a tobacco plant, comprising the step of:
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(a) introducing a mutation that causes functional suppression of at least one of a gene containing, as a coding region, a polynucleotide encoding a polypeptide having a sequence identity of 90% or higher with an amino acid sequence represented by SEQ ID NO. 1 and a gene containing, as a coding region, a polynucleotide encoding a polypeptide having a sequence identity of 90% or higher with an amino acid sequence represented by SEQ ID NO. 3; wherein the functional suppression of said at least one gene, suppresses development of secondary axillary buds, which develop after removal of primary axillary buds, without suppressing development of primary axillary buds, and wherein step (a), further including inserting, into a region of the plant'"'"'s genome outside of the region of the said at least one gene, of a polynucleotide expressing a factor which promotes degradation of an mRNA transcribed from the said at least one gene, and said factor being an antisense RNA molecule or an RNAi molecule. - View Dependent Claims (14, 16, 21, 25, 29)
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13. A method of producing a tobacco plant, comprising the step of:
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(a) introducing a mutation that causes functional suppression of at least one of a gene containing, as a coding region, a polynucleotide encoding a polypeptide having a sequence identity of 90% or higher with an amino acid sequence represented by SEQ ID NO. 1 and a gene containing, as a coding region, a polynucleotide encoding a polypeptide having a sequence identity of 90% or higher with an amino acid sequence represented by SEQ ID NO. 3; wherein the functional suppression of said at least one said gene suppresses development of secondary axillary buds, which develop after removal of primary axillary buds, without suppressing development of primary axillary buds, and step (a) further including introducing the mutation into the said at least one gene. - View Dependent Claims (15, 17, 18, 22, 26, 30)
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Specification