QTL regulating ear productivity traits in maize

摘要

The present invention relates to a method for determining an ear productivity trait in maize, which involves analyzing genomic DNA from a maize plant, germplasm, pollen, or seed for the presence of a molecular marker linked to a QTL associated with an ear productivity trait in maize. Also disclosed are methods of selecting a maize plant with a desired ear productivity trait; reliably and predictably introgressing an improved ear productivity trait into a maize line; and producing a maize line having a desired ear productivity trait. A kit for selecting a maize plant by marker assisted selection of a QTL associated with a desired ear productivity trait; an isolated nucleic acid comprising a QTL associated with an ear productivity trait in maize; and a transgenic plant comprising a recombinant nucleic acid genetically linked to a locus in maize, are also disclosed.

主权项

1. A method for determining an ear productivity trait in maize, said method comprising:
isolating genomic DNA from a maize plant, germplasm, pollen, or seed; analyzing genomic DNA from the maize plant, germplasm, pollen, or seed for the presence of a molecular marker linked to a quantitative trait locus (QTL) associated with an ear productivity trait in maize, wherein the molecular marker is selected from the group consisting of L00401, L004011, c 1.loc28, L01176, c 2.loc70, c 2.loc66, L01157, L00033, L000331, L00198c, L00198c1, c 3.loc52, L01138, L011381, c 4.loc126, c 4.loc1261, L00280, L00133, c 4.loc106, L01028, L010281, L00576, L005761, c 4.loc52, c 4.loc521, c 4.locl 14, L00589, L00134, c 5.loc47, c 5.loc471, L00221, L002211, c 5.loc73, L00110, c10.loc51, c10.loc50, SNP—35511, SNP—98111, SNP—23951, SNP—79262, SNP—19249, SNP—9084, SNP—99055, SNP—77055, SNP—45551, SNP—30953, SNP—84678, SNP—89298—2, SNP—32823, SNP—4623, SNP—90941, SNP—81248, SNP—82913, SNP—93907, SNP—90380, SNP—49724, SNP—51496, SNP—11948, SNP—18689, SNP—61221, SNP—105143, SNP—84372, SNP—27764, SNP—95039, SNP—75795, SNP—70805, SNP—43846, SNP—98032, SNP—63437, SNP—94161, SNP—34738, SNP—88270, SNP—2880, SNP—36300, and SNP—77712; detecting at least one molecular marker that is associated with an ear productivity trait; and selecting a maize plant having the ear productivity trait.