Genetic markers associated with drought tolerance in maize

Patent metadata

Field	Value
Publication number	US-10231399-B2
Application number	US-201615343510-A
Country	US
Kind code	B2
Filing date	Nov 4, 2016
Priority date	Dec 23, 2009
Publication date	Mar 19, 2019
Grant date	Mar 19, 2019

Abstract

The presently disclosed subject matter relates to methods and compositions for identifying, selecting, and/or producing drought tolerant maize plants or germplasm. Maize plants or germplasm that have been identified, selected, and/or produced by any of the methods of the presently disclosed subject matter are also provided.

First claim

What is claimed is:

1. A elite Zea mays plant having introgressed into its genome a ZmDr4 water optimization locus wherein, said ZmDr4 water optimization locus is obtained from maize line CML322 and further wherein the water optimization locus consists of a deletion that corresponds to positions 4497-4498 of SEQ ID NO: 7; a G nucleotide at the position that corresponds to position 4505 of SEQ ID NO: 7, a T nucleotide at the position that corresponds to position 4609 of SEQ ID NO: 7, an A nucleotide at the position that corresponds to position 4641 of SEQ ID NO: 7, a T nucleotide at the position that corresponds to position 4792 of SEQ ID NO: 7, a T nucleotide at the position that corresponds to position 4836 of SEQ ID NO: 7, a C nucleotide at the position that corresponds to position 4844 of SEQ ID NO: 7, a G nucleotide at the position that corresponds to position 4969 of SEQ ID NO: 7, and a TCC trinucleotide at the position that corresponds to positions 4979-4981 of SEQ ID NO: 7.

2. The elite Zea mays plant of claim 1 , wherein said introgression of the water optimization locus confers increased or stabilized yield in a water stressed environment as compared to a control plant.

3. The Zea mays plant of claim 1 , wherein the Zea mays plant further comprises any of haplotypes A, or C-M.

4. The Zea mays plant of claim 1 , wherein the plant is a stiff stalk maize variety or a non-stiff stalk maize variety.

5. The Zea mays plant of claim 4 , wherein the plant is any one of NP2391, NP2460 or a progeny of NP2391 or NP2460.

6. The Zea mays plant of claim 1 , wherein the plant further comprises a transgene that encodes a gene product that provides resistance to a herbicide selected from among glyphosate, Sulfonylurea, imidazolinione, dicambia, glufosinate, phenoxy proprionic acid, cycloshexome, traizine, benzonitrile, and broxynil.

7. A plant cell, plant seed or plant part obtained from the plant of claim 1 wherein said plant cell, plant seed or plant part comprises said water optimization locus.

8. A progeny plant obtained from the plant of claim 1 wherein said progeny plant comprises said ZmDr4 water optimization locus, wherein said progeny plant is not CML322.

Assignees

• Syngenta Participations Ag

Inventors

• Kishore Venkata Krishna
• Altendorf Paul
• Prest Thomas Joseph
• Zinselmeier Chris
• Wang Daolong
• Briggs William
• Gandhi Sonali
• Foster David
• Chaulk-Grace Christine
• Clarke V Joseph Dallas
• Sessions Allen
• Kust Kari Denise
• Reinders Jon Aaron Tucker
• Gutierrez Rojas Libardo Andres
• Li Meijuan
• Warner Todd
• Martin Nicolas
• Miller Robert Lynn
• Arbuckle John
• Skalla Dale Wayne
• Dunn Molly
• Dace Gayle
• Kramer Vance Cary

Classifications

• C12N15/8274

  for herbicide resistance · CPC title

• C12N15/8275

  Glyphosate · CPC title

• C12Q2600/172

  Haplotypes · CPC title

• Y02A40/132

  Plants tolerant to drought · CPC title

• C12Q2600/13

  Plant traits · CPC title