US-12616132-B2 - Plants and seeds of hybrid corn variety CH010438

US12616132B2US 12616132 B2US12616132 B2US 12616132B2US-12616132-B2

Abstract

According to the disclosure, there is provided seed and plants of the hybrid corn variety designated CH010438. The disclosure thus relates to the plants, seeds, and tissue cultures of the variety CH010438, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010438 with itself or with another corn plant, such as a plant of another variety. The disclosure further relates to genetic complements of plants of variety CH010438.

Inventors

Fufa H. Birru
Alexandre-Brice Cazenave
Rafael A. Mateo
Silvano Assanga OCHEYA

Assignees

MONSANTO TECHNOLOGY LLC

Dates

Publication Date: 20260505
Application Date: 20231227

Claims (18)

1 . A seed of hybrid corn variety CH010438, produced by crossing a first plant of variety CV613535 with a second plant of variety CV850024, wherein representative seeds of said varieties CV613535 and CV850024 are deposited under NCMA Accession No. 202306047 and NCMA Accession No. 202306050, respectively.
2 . A plant of the hybrid corn variety CH010438 grown from said seed of claim 1 .
3 . A plant part of the plant of claim 2 , wherein said plant part comprises a cell of said hybrid corn variety CH010438.
4 . A composition comprising the seed of claim 1 in plant seed growth media.
5 . The composition of claim 4 , wherein said growth media is soil or a synthetic cultivation medium.
6 . A method of producing the seed of claim 1 , the method comprising crossing a plant of variety CV613535 with a plant of variety CV850024.
7 . A seed of hybrid corn variety CH010438 further comprising a single locus conversion, wherein a plant grown from said seed comprises a trait conferred by said single locus conversion and wherein said seed comprises said trait and otherwise comprises all of the morphological and physiological characteristics of hybrid corn variety CH010438 when grown under the same environmental condition, and wherein said seed is produced by crossing a first plant selected from the group consisting of variety CV613535 and selfed progeny thereof with a second plant selected from a second group consisting of variety CV850024 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 CV613535 and CV850024 are deposited under NCMA Accession No. 202306047 and NCMA Accession No. 202306050, respectively.
8 . The seed of claim 7 , 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.
9 . A plant grown from the seed of claim 7 .
10 . A method of introducing a heritable trait into hybrid corn variety CH010438, the method comprising the steps of: (a) introducing at least said heritable trait into a first inbred corn variety CV613535, a second inbred corn variety CV850024, or both inbred corn varieties CV613535 and CV850024 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 CV613535 and CV850024 are deposited under NCMA Accession No. 202306047 and NCMA Accession No. 202306050, respectively; and (b) producing a plant of hybrid corn variety CH010438 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 CV613535 and CV850024, 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.
11 . The method of claim 10 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.
12 . The method of claim 10 further comprising repeating step (a) at least once to introduce at least a second heritable trait into hybrid corn variety CH010438, 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.
13 . A plant produced by the method of claim 10 , wherein said plant comprises said heritable trait and otherwise comprises all the morphological and physiological characteristics of corn variety CH010438 when grown under the same environmental conditions.
14 . A method of producing a progeny corn plant derived from hybrid corn variety CH010438, 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 CH010438.
15 . A method of producing a progeny corn plant derived from hybrid corn variety CH010438, wherein the method comprises applying at least one technique selected from the group consisting of backcrossing, marker assisted breeding, pedigree breeding, selfing, outcrossing, haploid production, doubled haploid production, and transformation to the plant of claim 2 to produce said progeny corn plant derived from hybrid corn variety CH010438.
16 . The method of claim 14 , further comprising the steps of: (a) crossing said progeny corn plant derived from hybrid corn variety CH010438 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 CH010438.
17 . 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.
18 . The method of claim 17 , wherein said commodity plant product is grain, starch, seed oil, corn syrup, or protein.

Description

BACKGROUND Field The present disclosure relates to the field of corn breeding. In particular, the disclosure relates to corn seed and plants of the hybrid variety designated CH010438, and derivatives and tissue cultures thereof. Description of Related Art The goal of field crop breeding is to combine various desirable traits in a single variety/hybrid. Such desirable traits include greater yield, better stalks, better roots, resistance to insecticides, herbicides, pests, and disease, tolerance to heat and drought, reduced time to crop maturity, better agronomic quality, higher nutritional value, and uniformity in germination times, stand establishment, growth rate, maturity, and fruit size. Plant breeding techniques take advantage of how a plant is naturally pollinated. There are two general methods of pollination. A plant is self-pollinated when pollen from one flower is transferred to the same flower or another flower of the same plant. A plant is cross-pollinated when pollen comes to it from a flower of a different plant. Corn plants (Zea mays L.) can be bred by both self-pollination and cross-pollination. Both types of pollination involve the corn plant's flowers. Corn has separate male and female flowers on the same plant, which are located on the tassel and the ear, respectively. Natural pollination occurs in corn when the wind blows pollen from the tassels to the silks that protrude from the tops of the ear shoot. Plants that have been self-pollinated and selected for type over many generations become homozygous at almost all gene loci and produce a uniform population of true breeding progeny, i.e., a homozygous plant. A cross between two such homozygous plants produces a uniform population of hybrid plants that are heterozygous for many gene loci and phenotypically uniform. The development of uniform corn plant hybrids requires developing homozygous inbred plants, crossing these inbred plants, and evaluating these crosses. Pedigree breeding and recurrent selection are examples of breeding methods used to develop hybrid parent plants from breeding populations. Those breeding methods combine the genetic backgrounds from two or more inbred plants or various other broad-based sources into breeding pools from which new inbred plants are developed by selfing combined with phenotypic or genotypic selection. The new inbred plants are crossed with other inbred plants and the hybrids produced by these crosses are evaluated for commercial potential. North American farmers plant tens of millions of acres of corn at the present time and there are extensive national and international commercial corn breeding programs. A continuing goal of these corn breeding programs is to develop corn hybrids that are based on stable inbred plants and have one or more desirable characteristics. To accomplish this goal, the corn breeder must select and develop superior inbred parental plants. SUMMARY In one aspect, the present disclosure provides a corn plant of the hybrid variety designated CH010438. Also provided are corn plants having all the physiological and morphological characteristics of the hybrid corn variety CH010438. A hybrid corn plant disclosed herein may further comprise a cytoplasmic or nuclear factor that may confer male sterility or otherwise preventing self-pollination, such as by self-incompatibility. Parts of the corn plant of the present disclosure are also provided, for example, pollen obtained from a hybrid plant and an ovule of the hybrid plant. The disclosure also concerns seed of the hybrid corn variety CH010438. The hybrid corn seed disclosed herein may be provided as a population of corn seed of the variety designated CH010438. In a further aspect, the disclosure provides a composition comprising a seed of corn variety CH010438 comprised in plant seed growth media. In certain embodiments, the plant seed growth media is a soil or synthetic cultivation medium. In specific embodiments, the growth medium may be comprised in a container or may, for example, be soil in a field. In another aspect, the hybrid corn variety CH010438 comprising an added heritable trait or genetic modification is provided. The heritable trait may comprise a genetic locus that comprises a dominant or recessive allele. In certain embodiments, the genetic locus confers traits such as, for example, male sterility, waxy starch, herbicide resistance, insect resistance, resistance to bacterial, fungal, nematode, or viral disease, and altered fatty acid, phytate or carbohydrate metabolism. In certain embodiments, the genetic locus that confers herbicide resistance may confer resistance to herbicides such as, for example, imidazolinone herbicides, sulfonylurea herbicides, triazine herbicides, phenoxy herbicides, cyclohexanedione herbicides, benzonitrile herbicides, 4-hydroxyphenylpyruvate dioxygenase-inhibiting herbicides, protoporphyrinogen oxidase-inhibiting herbicides, acetolactate synthase-inhibiting herbicides, 1-aminocyclopropane-1-