US 2010/0306874 A1 · YIELD ENHANCEMENT IN PLANTS BY MODULATION OF ZMPKT

Abstract

Compositions and methods for modulating flower organ development, leaf formation, phototropism, apical dominance, fruit development, initiation of roots, and for increasing yield in a plant are provided. The compositions include a ZmPKT sequence. Compositions of the invention comprise amino acid sequences and nucleotide sequences selected from SEQ ID NOS: 1 and 2 as well as variants and fragments thereof. Nucleotide sequences encoding the ZmPKT polypeptides are provided in DNA constructs for expression in a plant of interest are provided for modulating the level of a ZmPKT sequence in a plant or a plant part are provided. The methods comprise introducing into a plant or plant part a heterologous polynucleotide comprising a ZmPKT sequence of the invention. The level of the ZmPKT polypeptide can be increased or decreased. Such method can be used to increase the yield in plants; in one embodiment, the method is used to increase grain yield in cereals.

Claims22

Dependent claims

An isolated polynucleotide comprising a nucleotide sequence selected from the group consisting of:

(a) the nucleotide sequence set forth in SEQ ID NO:
1;
(b) a nucleotide sequence encoding the amino acid sequence of SEQ ID NO:
2;
(c) a nucleotide sequence having at least 90% sequence identity to SEQ ID NO:
1, wherein said nucleotide sequence encodes a polypeptide having ZmPKT protein activity;
(d) a nucleotide sequence comprising at least 50 consecutive nucleotides of SEQ ID NO:
1 or a complement thereof;
and,
(e) a nucleotide sequence encoding a polypeptide comprising an amino acid sequence having at least 80% sequence identity to SEQ ID NO:
2, wherein said nucleotide sequence encodes a polypeptide having ZmPKT protein activity.

8 more elements

Dependencies are inferred from the claim text.

Yield enhancement in plants by modulation of zmpkt

Life of this patent

Yield enhancement in plants by modulation of zmpkt

Life of this patent

Abstract

Claims22