The invention provides novel recombinant DNA molecules, compositions, and methods for selectively regulating the expression of a transcribable polynucleotide molecule or recombinant protein in a male reproductive tissue of a transgenic plant. The invention also provides transgenic plants, plant cells, plant parts, seeds, and commodity products comprising such DNA molecules and compositions.

Compositions and methods for modulating male fertility in a plant are provided. Compositions comprise nucleotide sequences, and fragments and variants thereof, which modulate male fertility. Further provided are expression cassettes comprising the male fertility polynucleotides, or 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. In certain embodiments, the plant is polyploid.

Methods of making haploid plants.

The invention provides novel recombinant DNA molecules, compositions, and methods for selectively regulating the expression of a transcribable polynucleotide molecule or recombinant protein in a male reproductive tissue of a transgenic plant. The invention also provides transgenic plants, plant cells, plant parts, seeds, and commodity products comprising such DNA molecules and compositions.

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.

The present invention provides an inbred corn line designated IJ7877, methods for producing a corn plant by crossing plants of the inbred line IJ7877 with plants of another corn plant. The invention further encompasses all parts of inbred corn line IJ7877, including culturable cells. Additionally provided herein are methods for introducing transgenes into inbred corn line IJ7877, and plants produced according to these methods.

The present invention provides an inbred corn line designated IJ7877, methods for producing a corn plant by crossing plants of the inbred line IJ7877 with plants of another corn plant. The invention further encompasses all parts of inbred corn line IJ7877, including culturable cells. Additionally provided herein are methods for introducing transgenes into inbred corn line IJ7877, and plants produced according to these methods.

The present disclosure relates to a fertility gene and the use thereof, and relates to the biotechnology field, particularly to a method of plant hybrid breeding including creation of a sterile line and preparation of hybrid seeds, more particularly to a fertility gene FL2, a mutant thereof and use thereof in hybrid breeding.

The present disclosure relates to an expression vector for restoring male sterility in a plant. The expression vector comprises a regulatory region sequence operably linked to a heterologous nucleotide sequence.

Compositions and methods for modulating male fertility in a plant are provided. Compositions comprise nucleotide sequences, and fragments and variants thereof, which modulate male fertility. Further provided are expression cassettes comprising the male fertility polynucleotides, or 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. In certain embodiments, the plant is polyploid. Also provided herein are wheat MS45 promoter sequences.