Abstract: Provided here are methods of using a mutated patatin-like phospholipase II? (“pPLAII?,” renamed here MATRILINEAL) to induce haploid induction in plants, cloning a pPLAII? to induce haploid induction in plants, and genetically engineering a plant to contain a mutated pPLAII?. Also provided are methods of applying topical and spray chemicals, lipids, and RNAi molecules to plants during pollination in order to induce haploid production. Further provided are methods of chemically treating plants during pollination to induce haploids while also reducing embryo abortion and increasing seed set.

Abstract: Provided here are methods of using a mutated patatin-like phospholipase II? (“pPLAII?,” renamed here MATRILINEAL) to induce haploid induction in plants, cloning a pPLAII? to induce haploid induction in plants, and genetically engineering a plant to contain a mutated pPLAII?. Also provided are methods of applying topical and spray chemicals, lipids, and RNAi molecules to plants during pollination in order to induce haploid production. Further provided are methods of chemically treating plants during pollination to induce haploids while also reducing embryo abortion and increasing seed set.

Abstract: Provided are isolated cDNAs comprising a nucleotide sequence having at least 90% identity to SEQ ID NO: 33, SEQ ID NO: 37, SEQ ID NO: 52 or SEQ ID NO: 53. Also provided are expression cassettes; vectors; transgenic plant cells; plants, plant parts, and seeds; isolated polypeptides; amplicons and informative fragments of the presently disclosed nucleic acids; compositions that include amplification primer pairs; methods for producing plants that exhibit HI; methods for identifying the presence or absence of an allele associated with HI in a plant; methods for introgressing Haploid-inducing nucleotide sequences into plants; and methods for selecting parental plants predicted to produce progeny generations with plants that exhibit Haploid Induction trait.

Abstract: Provided here are methods of using a mutated patatin-like phospholipase II? (“pPLAII?,” renamed here MATRILINEAL) to induce haploid induction in plants, cloning a pPLAII? to induce haploid induction in plants, and genetically engineering a plant to contain a mutated pPLAII?. Also provided are methods of applying topical and spray chemicals, lipids, and RNAi molecules to plants during pollination in order to induce haploid production. Further provided are methods of chemically treating plants during pollination to induce haploids while also reducing embryo abortion and increasing seed set.

Abstract: Provided here are methods of using a mutated patatin-like phospholipase II? (“pPLAII?,” renamed here MATRILINEAL) to induce haploid induction in plants, cloning a pPLAII? to induce haploid induction in plants, and genetically engineering a plant to contain a mutated pPLAII?. Also provided are methods of applying topical and spray chemicals, lipids, and RNAi molecules to plants during pollination in order to induce haploid production. Further provided are methods of chemically treating plants during pollination to induce haploids while also reducing embryo abortion and increasing seed set.

Abstract: Provided are isolated cDNAs comprising a nucleotide sequence having at least 90% identity to SEQ ID NO: 33, SEQ ID NO: 37, SEQ ID NO: 52 or SEQ ID NO: 53. Also provided are expression cassettes; vectors; transgenic plant cells; plants, plant parts, and seeds; isolated polypeptides; amplicons and informative fragments of the presently disclosed nucleic acids; compositions that include amplification primer pairs; methods for producing plants that exhibit HI; methods for identifying the presence or absence of an allele associated with HI in a plant; methods for introgressing Haploid-inducing nucleotide sequences into plants; and methods for selecting parental plants predicted to produce progeny generations with plants that exhibit Haploid Induction trait.

Abstract: Provided are isolated cDNAs comprising a nucleotide sequence having at least 90% identity to SEQ ID NO: 33, SEQ ID NO: 37, SEQ ID NO: 52 or SEQ ID NO: 53. Also provided are expression cassettes; vectors; transgenic plant cells; plants, plant parts, and seeds; isolated polypeptides; amplicons and informative fragments of the presently disclosed nucleic acids; compositions that include amplification primer pairs; methods for producing plants that exhibit HI; methods for identifying the presence or absence of an allele associated with HI in a plant; methods for introgressing Haploid—inducing nucleotide sequences into plants; and methods for selecting parental plants predicted to produce progeny generations with plants that exhibit Haploid Induction trait.

Abstract: The present invention relates to methods and compositions for identifying, selecting and/or producing a plant or germplasm having root increased drought tolerance and/or increased yield under non-drought conditions as compared to a control plant. A maize plant, part thereof and/or germplasm, including any progeny and/or seeds derived from a maize plant or germplasm identified, selected and/or produced by any of the methods of the present invention is also provided.

Abstract: Provided here are methods of using a mutated patatin-like phospholipase II? (“pPLAII?,” renamed here MATRILINEAL) to induce haploid induction in plants, cloning a pPLAII? to induce haploid induction in plants, and genetically engineering a plant to contain a mutated pPLAII?. Also provided are methods of applying topical and spray chemicals, lipids, and RNAi molecules to plants during pollination in order to induce haploid production. Further provided are methods of chemically treating plants during pollination to induce haploids while also reducing embryo abortion and increasing seed set.

Abstract: Provided are isolated cDNAs comprising a nucleotide sequence having at least 90% identity to SEQ ID NO: 33, SEQ ID NO: 37, SEQ ID NO: 52 or SEQ ID NO: 53. Also provided are expression cassettes; vectors; transgenic plant cells; plants, plant parts, and seeds; isolated polypeptides; amplicons and informative fragments of the presently disclosed nucleic acids; compositions that include amplification primer pairs; methods for producing plants that exhibit HI; methods for identifying the presence or absence of an allele associated with HI in a plant; methods for introgressing Haploid—inducing nucleotide sequences into plants; and methods for selecting parental plants predicted to produce progeny generations with plants that exhibit Haploid Induction trait.

Abstract: Provided are isolated cDNAs comprising a nucleotide sequence having at least 90% identity to SEQ ID NO: 33, SEQ ID NO: 37, SEQ ID NO: 52 or SEQ ID NO: 53. Also provided are expression cassettes; vectors; transgenic plant cells; plants, plant parts, and seeds; isolated polypeptides; amplicons and informative fragments of the presently disclosed nucleic acids; compositions that include amplification primer pairs; methods for producing plants that exhibit HI; methods for identifying the presence or absence of an allele associated with HI in a plant; methods for introgressing Haploid-inducing nucleotide sequences into plants; and methods for selecting parental plants predicted to produce progeny generations with plants that exhibit Haploid Induction trait.

Abstract: Provided are isolated cDNAs comprising a nucleotide sequence having at least 90% identity to SEQ ID NO: 33, SEQ ID NO: 37, SEQ ID NO: 52 or SEQ ID NO: 53. Also provided are expression cassettes; vectors; transgenic plant cells; plants, plant parts, and seeds; isolated polypeptides; amplicons and informative fragments of the presently disclosed nucleic acids; compositions that include amplification primer pairs; methods for producing plants that exhibit HI; methods for identifying the presence or absence of an allele associated with HI in a plant; methods for introgressing Haploid-inducing nucleotide sequences into plants; and methods for selecting parental plants predicted to produce progeny generations with plants that exhibit Haploid Induction trait.

Abstract: Provided are expression cassettes; vectors; transgenic plant cells; plants, plant parts, and seeds; isolated polypeptides; amplicons and informative fragments of the presently disclosed nucleic acids; compositions that include amplification primer pairs; methods for producing plants that exhibit haploid induction (HI); methods for identifying the presence or absence of an allele associated with HI in a plant; methods for introgressing Haploid-inducing nucleotide sequences into plants; and methods for selecting parental plants predicted to produce progeny generations with plants that exhibit Haploid Induction trait.

Abstract: Provided are isolated cDNAs. In some embodiments, the isolated cDNA are selected from the group consisting of: (a) a nucleic acid having at least 90% identity to SEQ ID NO: 33, SEQ ID NO: 37, SEQ ID NO: 52 or SEQ ID NO: 53, optionally wherein the percent identity is calculated over the entire length of SEQ ID NO: 33, SEQ ID NO: 37, SEQ ID NO: 52 or SEQ ID NO: 53; (b) a nucleic acid having at least 95% identity over nucleotides 91-1452 of SEQ ID NO: 33; (c) a nucleic acid that is the reverse complement of either of (a) or (b); and (d) a nucleic acid that encodes a polypeptide comprising an amino acid sequence that is at least 95% identical to SEQ ID NO: 54, or SEQ ID NO: 55, or SEQ ID NO: 56, or SEQ ID NO: 57 optionally wherein the percent identity is calculated over the entire length of SEQ ID NO: 54, or SEQ ID NO: 55, or SEQ ID NO: 56, or SEQ ID NO: 57.

Abstract: Provided herein are methods for mapping quantitative trait loci in a connected population of organisms. The invention includes evaluating associations between markers and a trait of interest using network population mapping (NPM). The methods include assembling a network of individual members for association mapping, wherein the members are connected at the allelic level. Members of the network are grouped according to a shared haplotype at one or more marker loci, and the network can be used to identify or validate QTL within the chromosomal region surrounding or flanked by the marker loci. The methods further include a means for estimating and ranking the effects of multiple alleles across the mapping population. Further provided is a novel simple interval mapping model as well as a novel composite interval mapping model for evaluating allele-specific associations across a connected mapping population.