Genetic Markers Associated with Drought Tolerance in Maize

摘要

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.

主权项

1. 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 of the Maize B73 genome version 3 defined by and including base pair (bp) position 14765640 to base pair (bp) position 14772295 (SEQ ID NO. 22); (b) a chromosome interval on chromosome 3 of the Maize B73 genome version 3 defined by and including base pair (bp) position 171790082 to base pair (bp) position 171797701 (SEQ ID NO. 20); (c) a chromosome interval on chromosome 1 of the Maize B73 genome version 3 defined by and including base pair (bp) position 194963437 to base pair (bp) position 194970347 (SEQ ID NO. 21); (d) a chromosome interval on chromosome 5 of the Maize B73 genome version 3 defined by and including base pair (bp) position 164893210 to base pair (bp) position 164900398 (SEQ ID NO. 23); and (e) any combination of (a) to (d) 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.