Molecular characterization of global maize breeding germplasm based on genome-wide single nucleotide polymorphisms.
Molecular characterization of global maize breeding germplasm based on genome-wide single nucleotide polymorphisms.
Summary: Characterization of genetic diversity is of great value to assist breeders in parental line selection and breeding system design. We screened 770 maize inbred lines with 1,034 single nucleotide polymorphism (SNP) markers and identified 449 high-quality markers with no germplasm-specific biasing effects. Pairwise comparisons across three distinct sets of germplasm, CIMMYT (394), China (282), and Brazil (94), showed that the elite lines from these diverse breeding pools have been developed with only limited utilization of genetic diversity existing in the center of origin. Temperate and tropical/subtropical germplasm clearly clustered into two separate groups
Publication year: 2009
Types of publication: Journal article
Unit: Embrapa Maize & Sorghum
Observation
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