Genetic markers associated with drought tolerance in maize
AssigneeSyngenta Participations AG
InventorsShib Sankar Basu, Michael Mahlon Magwire
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Abstract
The present invention relates to methods and compositions for identifying, selecting and/or producing a maize plant or maize plant part having increased yield under non-drought conditions, increased yield stability under drought conditions, and/or increased drought tolerance. A maize plant or maize plant part, 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.
Claims18
A method of identifying and/or selecting a maize plant or plant part having increased yield under non-drought conditions, increased yield stability under drought conditions, and/or increased drought tolerance, comprising:
- detecting, in a maize plant or plant part, an allele of at least one marker locus that is associated with increased yield under non-drought conditions, increased yield stability under drought conditions, and/or increased drought tolerance in a plant, wherein said at least one marker locus is located within a chromosomal interval selected from the group consisting of:
- (a) a chromosome interval on chromosome 10 defined by and including base pair (bp) position 14762443 to base pair (bp) position 14765098 (Gene Model ID No:
- GRMZM2G173669);
- (b) a chromosome interval on chromosome 3 defined by and including base pair (bp) position 171748815 to base pair (bp) position 171752467 (Gene Model ID No:
- GRMZM2G039365);
- (c) a chromosome interval on chromosome 1 defined by and including base pair (bp) position 194932443 to base pair (bp) position 194935353 (Gene Model ID No:
- GRMZM2G368827);
- (d) a chromosome interval on chromosome 8 defined by and including base pair (bp) position 33363546 to base pair (bp) position 33368983 (Gene Model ID No:
- GRMZM2G111926);
- (e) a chromosome interval on chromosome 5 defined by and including base pair (bp) position 164854921 to base pair (bp) position 164858109 (Gene Model ID No:
- GRMZM2G872392);
- and
- (f) any combination of (a) to (e) above,
- thereby identifying and/or selecting a maize plant or plant part having increased yield under non-drought conditions, increased yield stability under drought conditions, and/or increased drought tolerance.
A method of producing a maize plant having increased yield under non-drought conditions, increased yield stability under drought conditions, and/or increased drought tolerance, comprising:
- crossing a first maize plant or germplasm with a second maize plant or germplasm, wherein said first maize plant or germplasm comprises within its genome a marker associated with increased yield under non-drought conditions, increased yield stability under drought conditions, and/or increased drought tolerance in a maize plant, wherein said marker is located within a chromosomal interval selected from the group consisting of:
- (a) a chromosome interval on chromosome 10 defined by and including base pair (bp) position 14762443 to base pair (bp) position 14765098 (Gene Model ID No:
- GRMZM2G173669);
- (b) a chromosome interval on chromosome 3 defined by and including base pair (bp) position 171748815 to base pair (bp) position 171752467 (Gene Model ID No:
- GRMZM2G039365);
- (c) a chromosome interval on chromosome 1 defined by and including base pair (bp) position 194932443 to base pair (bp) position 194935353 (Gene Model ID No:
- GRMZM2G368827);
- (d) a chromosome interval on chromosome 8 defined by and including base pair (bp) position 33363546 to base pair (bp) position 33368983 (Gene Model ID No:
- GRMZM2G111926);
- (e) a chromosome interval on chromosome 5 defined by and including base pair (bp) position 164854921 to base pair (bp) position 164858109 (Gene Model ID No:
- GRMZM2G872392);
- and
- (f) any combination of (a) to (e) above,
- thereby producing a plant having increased yield under non-drought conditions, increased yield stability under drought conditions, and/or increased drought tolerance.
Dependencies are inferred from the claim text.