Syngenta Participations Ag

Satya P Chintamanani

Brent Delzer

Michael L Nuccio

Robert Arthur Dietrich

Todd Lee Warner

Timothy Kelliher

William Paul Bullock

Suresh Babu Kadaru

David Jay Foster

Molly Dunn

Nicolas Federico Martin

Steven William Ritchie

David Stewart Skibbe

Dominic Michael Tucker

Elhan Sultan Ersoz

Elhan Sultan Ersöz

Provided here are methods of using a mutated patatin-like phospholipase IIα ('pPLAIIα,' renamed here MATRILINEAL) to induce haploid induction in plants, cloning a pPLAIIα to induce haploid induction in plants, and genetically engineering a plant to contain a mutated pPLAIIα. 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.

Haploid induction compositions and methods for use therefor

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.

Provided here are methods of using a mutated patatin-like phospholipase II&#x3b1; ('pPLAII&#x3b1;,' renamed here MATRILINEAL) to induce haploid induction in plants, cloning a pPLAII&#x3b1; to induce haploid induction in plants, and genetically engineering a plant to contain a mutated pPLAII&#x3b1;. 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.

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&#x2014;inducing nucleotide sequences into plants; and methods for selecting parental plants predicted to produce progeny generations with plants that exhibit Haploid Induction trait.

The present invention relates to methods and compositions for identifying, selecting and/or producing a maize plant or plant part having increased fertility. A maize plant or plant part that has been identified, selected and/or produced by any of the methods of the present invention is also provided.

Genetic loci associated with increased fertility in maize

Genetic markers associated with increased fertility in maize

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.

Growing community of inventors

Grimes, IA, United States of America

Satya P Chintamanani