ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2009
Molecular characterization of global maize breeding germplasm based on genome-wide single nucleotide polymorphisms.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers.
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Who cites it
101 citing papers in PubMed.
- Genome-Wide Association Studies of Agronomic and Yield Traits in Sweet Corn (Plants (Basel, Switzerland) · 2026Article
- Achieving High-Density and Stress-Resilient Maize Breeding Via Germplasm Innovation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- Divergent genetic and phenotypic trajectories in China' s maize hybrids.BMC genomics · 2026Article
- Genetic diversity and population structure of early-maturing yellow and orange maize inbred lines for improved breeding applications.PloS one · 2026Article
- Decades' progress and prospects on maize functional genomics and molecular breeding.Science China. Life sciences · 2025Review
- Genetic Resources of Cereal and Oilseed Crops for Heterotic Hybrid Breeding.Plants (Basel, Switzerland) · 2025Review
- Insights into the genomic divergence of maize heterotic groups in China.Journal of integrative plant biology · 2025Article
- SPDC-HG: An accelerator of genomic hybrid breeding in maize.Plant biotechnology journal · 2025Article
- Integrative mapping in large inbred and hybrid association panels along with an FTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Development of Genome-Wide SSR Markers inInternational journal of molecular sciences · 2025Article
- Genetic diversity and population structure analyses of tropical maize inbred lines using Single Nucleotide Polymorphism markers.PloS one · 2025Article
- Genetic diversity and population structure of sweet corn in China as revealed by mSNP.Molecular breeding : new strategies in plant improvement · 2025Article
- SeqSNP-based genic markers reveal genetic architecture and candidate genes for low nitrogen tolerance in tropical maize inbred lines.Frontiers in plant science · 2025Article
- DArTseq-based SNP markers reveal high genetic diversity among early generation fall armyworm tolerant maize inbred lines.PloS one · 2024Article
- Molecular markers and molecular basis of plant type related traits in maize.Frontiers in genetics · 2024Article
- Genetic diversity and population structure of modern wheat (Triticum aestivum L.) cultivars in Henan Province of China based on SNP markers.BMC plant biology · 2023Article
- Genetic analysis of global faba bean diversity, agronomic traits and selection signatures.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Genomic analysis of a new heterotic maize group reveals key loci for pedigree breeding.Frontiers in plant science · 2023Article
- Molecular characterization of doubled haploid lines derived from different cycles of the Iowa Stiff Stalk Synthetic (BSSS) maize population.Frontiers in plant science · 2023Article
- Genetic Variation Among Tropical Maize Inbred Lines from NARS and CGIAR Breeding Programs.Plant molecular biology reporter · 2023Article
41 more citing papers are in PubMed but not listed here.
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Authors and funding
18 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
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. The temperate germplasm could be further divided into six groups consistent with known heterotic patterns. The greatest genetic divergence was observed between temperate and tropical/subtropical lines, followed by the divergence between yellow and white kernel lines, whereas the least divergence was observed between dent and flint lines. Long-term selection for hybrid performance has contributed to significant allele differentiation between heterotic groups at 20% of the SNP loci. There appeared to be substantial levels of genetic variation between different breeding pools as revealed by missing and unique alleles. Two SNPs developed from the same candidate gene were associated with the divergence between two opposite Chinese heterotic groups. Associated allele frequency change at two SNPs and their allele missing in Brazilian germplasm indicated a linkage disequilibrium block of 142 kb. These results confirm the power of SNP markers for diversity analysis and provide a feasible approach to unique allele discovery and use in maize breeding programs.
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