Abstract: A nuclear maize gene is mutated to result in dominant male sterility. Two mutants are provided which impact signal peptide processing. Restoration constructs and methods are provided for use of the dominant male-sterile mutants in producing hybrid seed for male-sterile hybrid plants. Other signal-peptide modifications are provided. Orthologs of the wild type or mutated gene in various species are provided.

Abstract: A nuclear maize gene is mutated to result in dominant male sterility. Two mutants are provided which impact signal peptide processing. Restoration constructs and methods are provided for use of the dominant male-sterile mutants in producing hybrid seed for male-sterile hybrid plants. Other signal-peptide modifications are provided. Orthologs of the wild type or mutated gene in various species are provided.

Abstract: Compositions and methods are capable of modulating male fertility in a plant. Compositions comprise polynucleotides and polypeptides, and fragments and variants thereof, which modulate male fertility. Expression cassettes comprise a male-fertility polynucleotide, or fragment or variant thereof, operably linked to a promoter, wherein expression of the polynucleotide modulates the male fertility of a plant. Regulatory sequences drive expression in a male-tissue-preferred manner and may be targets to downregulate an operably-linked gene. Mutations that induce nuclear recessive male sterility in subsequent selfing and crossing of wheat lines containing the mutations may be tracked. Male-sterile plants may be maintained by crossing with a maintainer plant. Hybrids can be produced using the male-sterile plants.

Abstract: Compositions and methods are capable of modulating male fertility in a plant. Compositions comprise polynucleotides and polypeptides, and fragments and variants thereof, which modulate male fertility. Expression cassettes comprise a male-fertility polynucleotide, or fragment or variant thereof, operably linked to a promoter, wherein expression of the polynucleotide modulates the male fertility of a plant. Regulatory sequences drive expression in a male-tissue-preferred manner and may be targets to downregulate an operably-linked gene. Mutations that induce nuclear recessive male sterility in subsequent selfing and crossing of wheat lines containing the mutations may be tracked. Male-sterile plants may be maintained by crossing with a maintainer plant. Hybrids can be produced using the male-sterile plants.

Abstract: A nuclear maize gene is mutated to result in dominant male sterility. Two mutants are provided which impact signal peptide processing. Restoration constructs and methods are provided for use of the dominant male-sterile mutants in producing hybrid seed for male-sterile hybrid plants. Other signal-peptide modifications are provided. Orthologs of the wild type or mutated gene in various species are provided.

Abstract: Methods and compositions useful for avoiding plant meiosis and clonal reproduction through seed are provided herein. The present disclosure provides polynucleotides and related polypeptides of Spo11, Rec8, OSD1-1A, and OSD1-3A and methods and compositions for suppressing their expression level or activity.

Abstract: Compositions and methods for modulating male fertility in a plant are provided. Compositions comprise nucleotide sequences, and active fragments and variants thereof, which modulate male fertility. Further provided are expression cassettes comprising the male fertility polynucleotides, or active fragments or variants thereof, operably linked to a promoter, wherein expression of the polynucleotides modulates the male fertility of a plant. Various methods are provided wherein the level and/or activity of the sequences that influence male fertility is modulated in a plant or plant part.

Abstract: Compositions and methods for modulating male fertility in a plant are provided. Compositions comprise nucleotide sequences, and active fragments and variants thereof, which modulate male fertility. Further provided are expression cassettes comprising the male fertility polynucleotides, or active fragments or variants thereof, operably linked to a promoter, wherein expression of the polynucleotides modulates the male fertility of a plant. Various methods are provided wherein the level and/or activity of the sequences that influence male fertility is modulated in a plant or plant part.

Abstract: Nucleotide sequences, amino acid sequences, and an associated promoter sequence are useful in methods of controlling male fertility in plants. Recombinant expression cassettes, vectors, plant cells, and plants comprise a disclosed nucleotide sequence and may encode a disclosed amino acid sequence. The recombinant expression cassettes are useful in controlling fertility, especially male fertility of annual crops. The promoter is useful in driving expression of an operably-linked heterologous polynucleotide. Constructs comprising homology to the promoter sequence are useful for downregulation of a polynucleotide associated with the promoter.

Abstract: Methods and compositions used to prevent or decrease reduction, or reduction and recombination, during meiosis in female sporocyte, female gametophytes, or female gametes are described herein. The compositions and methods may include silencing elements and/or use gene-editing technology to decrease or inhibit Nrf4 expression levels or activity. Further provided are compositions and methods for the production of a plant that has ovules comprising non-reduced, or non-reduced and non-recombined, gametes, and/or seeds that contain clonal maternal embryos.

Abstract: The present invention provides a seed blend comprising pesticidal seed and refuge seed, wherein plants grown from the pesticidal seed type do not pollinate or have reduced pollination of plants grown from the refuge seed type when the seed blend is planted. Methods for deploying the seed blend and for reducing cross-pollination between plants grown from the pesticidal seed and refuge seed are also provided.

Abstract: Genetic male sterile plants are provided in which complementing constructs result in suppression of a parental phenotype in the progeny. Methods to generate and maintain such plants and methods of use of said plants, are provided, including use of parental plants to produce sterile plants for hybrid seed production.

Abstract: Compositions and methods are capable of modulating male fertility in a plant. Compositions comprise polynucleotides and polypeptides, and fragments and variants thereof, which modulate male fertility. Expression cassettes comprise a male-fertility polynucleotide, or fragment or variant thereof, operably linked to a promoter, wherein expression of the polynucleotide modulates the male fertility of a plant. The level and/or activity of a polynucleotide that influences male fertility is modulated in a plant or plant part. Regulatory sequences drive expression in a male-tissue-preferred manner and may be targets to downregulate an operably linked gene. Methods to track mutations that induce nuclear recessive male sterility in subsequent selfing and crossing of wheat lines containing the mutations are also provided. Male-sterile plants may be maintained by pollinating with a maintainer plant.

Abstract: Disclosed are methods of obtaining clonal seeds, methods of plant cloning, methods of screening for maternal plants that produce clonal seeds asexually and methods of increasing yield of clonal seeds. Also disclosed are constructs comprising a nucleic acid that may silence the activity of a RNA-dependent DNA methylation pathway gene. Further disclosed are maternal plants comprising a construct wherein the construct comprises an exogenous nucleic acid sequence, wherein the construct renders the maternal plant defective for RNA-dependent DNA methylation.

Abstract: Isolated polynucleotides and polypeptides and recombinant DNA constructs useful for conferring drought tolerance, compositions (such as plants or seeds) comprising these recombinant DNA constructs, and methods utilizing these recombinant DNA constructs. The recombinant DNA construct comprises a polynucleotide operably linked to a promoter that is functional in a plant, wherein said polynucleotide encodes a DTP21 polypeptide.

Abstract: Compositions and methods are capable of modulating male fertility in a plant. Compositions comprise polynucleotides and polypeptides, and fragments and variants thereof, which modulate male fertility. Expression cassettes comprise a male-fertility polynucleotide, or fragment or variant thereof, operably linked to a promoter, wherein expression of the polynucleotide modulates the male fertility of a plant. Regulatory sequences drive expression in a male-tissue-preferred manner and may be targets to downregulate an operably-linked gene. Mutations that induce nuclear recessive male sterility in subsequent selfing and crossing of wheat lines containing the mutations may be tracked. Male-sterile plants may be maintained by crossing with a maintainer plant. Hybrids can be produced using the male-sterile plants.

Abstract: Nucleotide sequences, amino acid sequences, and an associated promoter sequence are useful in methods of controlling male fertility in plants. Recombinant expression cassettes, vectors, plant cells, and plants comprise a disclosed nucleotide sequence and may encode a disclosed amino acid sequence. The recombinant expression cassettes are useful in controlling fertility, especially male fertility of annual crops. The promoter is useful in driving expression of an operably-linked heterologous polynucleotide. Constructs comprising homology to the promoter sequence are useful for downregulation of a polynucleotide associated with the promoter.

Abstract: Methods and compositions to adapt corn to grow in a geographical location such as northern dry climatic region are disclosed. By modulating phenotypic parameters such as for example flowering time, plant architecture, abiotic stress tolerance in a modular approach, corn is modified to grow in a geographical location that generally does not support growth corn to generate higher yields. Various methods, genes, and compositions are disclosed to improve adaptability and productivity of corn in the desired climatic conditions.

Abstract: Compositions and methods for modulating male fertility in a plant are provided. Compositions comprise nucleotide sequences, and active fragments and variants thereof, which modulate male fertility. Further provided are expression cassettes comprising the male fertility polynucleotides, or active fragments or variants thereof, operably linked to a promoter, wherein expression of the polynucleotides modulates the male fertility of a plant. Various methods are provided wherein the level and/or activity of the sequences that influence male fertility is modulated in a plant or plant part.

Abstract: Nucleotide sequences and amino acid sequences may be useful in methods mediating male fertility in plants, particularly maize, rice, or sorghum. Wild-type and mutant forms are useful for various purposes. Vectors, plant cells, and plants comprise the nucleotide sequences or amino acid sequences. A promoter sequence operably linked to a polynucleotide of interest provides expression preferentially in male reproductive tissue.