# US 11,439,089 B2 · Plants and seeds of hybrid corn variety CH011023

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- Number: US 11,439,089 B2
- Document ID: US11439089B2
- Status: Granted
- Kind: B2
- Application number: 17/027,062
- Filed: 2020-09-21
- Published: 2022-03-24
- Granted: 2022-09-13
- Earliest claimed: 2020-09-21
- Assignees: Monsanto Technology LLC
- Applicants: Monsanto Technology LLC
- Inventors: Christian J. Buffard; Jeffrey M. Sernett; Gary R. Stangland
- Web page: https://patentgrep.com/patent/US11439089B2

## CPC

- A01H 6/4684: {Zea mays [maize]}
- A01H 5/10: Seeds
- A01H: NEW PLANTS OR {NON-TRANSGENIC} PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES

## Abstract

According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011023. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011023, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011023 with itself or with another corn plant, such as a plant of another variety. The invention further relates to genetic complements of plants of variety CH011023.

## Claims

### Claim 1

A seed of hybrid corn variety CH011023, produced by crossing a first plant of variety CV409079 with a second plant of variety CV892622, wherein representative seeds of said varieties CV409079 and CV892622 are deposited under NCMA Accession No. 202005022 and NCMA Accession No. 202005024, respectively.

### Claim 2 (depends on 1)

A plant of the hybrid corn variety CH011023 grown from said seed of claim 1.

### Claim 3 (depends on 2)

A plant part of the plant of claim 2, wherein said plant part comprises a cell of said hybrid corn variety CH011023.

### Claim 4 (depends on 1)

A composition comprising the seed of claim 1 comprised in plant seed growth media.

### Claim 5 (depends on 4)

The composition of claim 4, wherein said growth media is soil or a synthetic cultivation medium.

### Claim 6 (depends on 1)

The seed of claim 1, further comprising a transgene, wherein said transgene is introduced by backcrossing or genetic transformation into said variety CV409079, said variety CV892622, or both varieties CV409079 and CV892622, wherein a plant grown from the seed comprises the transgene and otherwise comprises all of the physiological and morphological characteristics of a plant of hybrid corn variety CH011023.

### Claim 7 (depends on 6)

The seed of claim 6, wherein the transgene confers a trait selected from the group consisting of male sterility, herbicide tolerance, insect resistance, disease resistance, waxy starch, modified fatty acid metabolism, modified phytic acid metabolism, modified carbohydrate metabolism and modified protein metabolism.

### Claim 8 (depends on 1)

A method of producing the seed of claim 1, the method comprising crossing a plant of variety CV409079 with a plant of variety CV892622.

### Claim 9

A seed of hybrid corn variety CH011023 further comprising a single locus conversion, wherein a plant grown from said seed comprises a trait conferred by said single locus conversion and otherwise comprises all of the morphological and physiological characteristics of hybrid corn variety CH011023, and wherein said seed is produced by crossing a first plant selected from the group consisting of variety CV409079 and selfed progeny thereof with a second plant selected from a second group consisting of variety CV892622 and selfed progeny thereof, wherein said first plant, said second plant, or both further comprise said single locus conversion, and wherein representative seeds of said varieties CV409079 and CV892622 are deposited under NCMA Accession No. 202005022 and NCMA Accession No. 202005024, respectively.

### Claim 10 (depends on 9)

The seed of claim 9, wherein said single locus conversion confers a trait selected from the group consisting of male sterility, herbicide tolerance, insect resistance, disease resistance, waxy starch, modified fatty acid metabolism, modified phytic acid metabolism, modified carbohydrate metabolism and modified protein metabolism.

### Claim 11 (depends on 9)

A plant grown from the seed of claim 9, wherein said plant comprises said trait and otherwise comprises all of the morphological and physiological characteristics of hybrid corn variety CH011023.

### Claim 12

A method of introducing a heritable trait into hybrid corn variety CH011023, the method comprising the steps of:
(a) introducing at least said heritable trait into a first inbred corn variety CV409079, a second inbred corn variety CV892622, or both inbred corn varieties CV409079 and CV892622 to produce plants of said inbred corn varieties that heritably carry said heritable trait, wherein said heritable trait is introduced into said inbred corn varieties by backcrossing, wherein said backcrossing is sufficient to produce an inbred corn variety further comprising said heritable trait, and wherein representative seeds of said inbred corn varieties CV409079 and CV892622 are deposited under NCMA Accession No. 202005022 and NCMA Accession No. 202005024, respectively; and
(b) producing a plant of hybrid corn variety CH011023 further comprising said heritable trait by crossing a plant of said first or said second inbred corn variety that heritably carries said heritable trait with a plant of a different inbred corn variety selected from a group consisting of inbred corn varieties CV409079 and CV892622, or crossing a plant of said first inbred corn variety and a plant of said second inbred corn variety that both heritably carry said heritable trait.

### Claim 13 (depends on 12)

The method of claim 12 wherein said heritable trait is selected from the group consisting of male sterility, herbicide tolerance, insect resistance, disease resistance, waxy starch, modified fatty acid metabolism, modified phytic acid metabolism, modified carbohydrate metabolism and modified protein metabolism.

### Claim 14 (depends on 12)

The method of claim 12 further comprising repeating step (a) at least once to introduce at least a second heritable trait into hybrid corn variety CH011023, wherein the second heritable trait is selected from the group consisting of male sterility, herbicide tolerance, insect resistance, disease resistance, waxy starch, modified fatty acid metabolism, modified phytic acid metabolism, modified carbohydrate metabolism and modified protein metabolism.

### Claim 15 (depends on 12)

A plant produced by the method of claim 12, wherein said plant comprises said heritable trait and otherwise comprises all of the morphological and physiological characteristics of corn variety CH011023 when grown under the same environmental conditions.

### Claim 16 (depends on 2)

A method of producing a progeny corn plant derived from hybrid corn variety CH011023, wherein the method comprises applying plant breeding techniques to the plant of claim 2 to produce said progeny corn plant derived from hybrid corn variety CH011023.

### Claim 17 (depends on 16)

The method of claim 16, wherein said plant breeding techniques comprise backcrossing, marker assisted breeding, pedigree breeding, selfing, outcrossing, haploid production, doubled haploid production, or transformation.

### Claim 18 (depends on 16)

The method of claim 16, further comprising the steps of:
(a) crossing said progeny corn plant derived from hybrid corn variety CH011023 with itself or a second plant to produce a seed of a progeny plant of a subsequent generation;
(b) growing the progeny plant of the subsequent generation from said seed of the progeny plant of the subsequent generation; and
(c) repeating steps (a) and (b) for at least an additional 3-10 generations to produce a progeny corn plant further derived from the hybrid corn variety CH011023.

### Claim 19 (depends on 2)

A method of producing a commodity plant product, the method comprising obtaining the plant of claim 2 or a part thereof and producing said commodity plant product therefrom, wherein said plant part comprises a cell of hybrid corn variety CH011023.

### Claim 20 (depends on 19)

The method of claim 19, wherein said commodity plant product is grain, starch, seed oil, corn syrup, or protein.
