Drought tolerance in corn
AssigneesKWS SAAT SE & Co. KGaA, Technische Universität München
InventorsClaude URBANY, Milena OUZUNOVA, Thomas PRESTERL, Daniela SCHEUERMANN, Chris-Carolin SCHÖN, Svenja ALTER, Viktoriya AVRAMOVA, Eva BAUER, Sebastian GRESSET
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Abstract
The present invention relates to a QTL allele in maize associated with drought resistance and carbon isotope composition as well as specific marker alleles associated with the QTL allele. The present invention further relates methods for identifying maize plants based on screening for the presence of the QTL allele or marker alleles. The invention also relates to methods for modifying drought resistance and carbon isotope composition in maize plants.
Claims12
1-6. (canceled)
A method of modifying a maize plant, comprising altering the expression level and/or activity of one or more genes located in a QTL located on chromosome 7, the QTL comprising a QTL allele, wherein the QTL allele is located on a chromosomal interval comprising molecular markers A and/or B, wherein molecular markers A and B are SNPs which are respectively C corresponding to position 125861690 and A corresponding to position 126109267 or which are respectively T corresponding to position 125861690 and G corresponding to position 126109267, referenced to the B73 reference genome AGPv2, optionally wherein the QTL allele is flanked by molecular markers A and/or B.
The method according to 7, wherein the one or more genes is selected from Abh4, CSLE1, WEB1, GRMZM2G397260, and Hsftf21.
A method for generating a maize plant, comprising introducing into the genome of a plant a QTL located on chromosome 7, the QTL comprising a QTL allele, wherein the QTL allele is located on a chromosomal interval comprising molecular markers A and/or B, wherein molecular markers A and B are SNPs which are respectively C corresponding to position 125861690 and A corresponding to position 126109267 or which are respectively T corresponding to position 125861690 and G corresponding to position 126109267, referenced to the B73 reference genome AGPv2, optionally wherein the QTL allele is flanked by molecular markers A and/or B.
A method for obtaining a maize plant part, comprising:
- (a) providing a first maize plant having a QTL or one or more molecular markers,
- (b) crossing the first maize plant with a second maize plant,
- (c) selecting progeny plants having the QTL or the one or more molecular markers, and
- (d) harvesting the plant part from the progeny,
- wherein the QTL is located on chromosome 7 and comprises a QTL allele, wherein the QTL allele is located on a chromosomal interval comprising molecular markers A and/or B, wherein molecular markers A and B are SNPs which are respectively C corresponding to position 125861690 and A corresponding to position 126109267 or which are respectively T corresponding to position 125861690 and G corresponding to position 126109267, referenced to the B73 reference genome AGPv2, optionally wherein the QTL allele is flanked by molecular markers A and/or B.
12-15. (canceled)
Dependencies are inferred from the claim text.