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[Identification and registration of corn genotypes using molecular markers]
1South Biotechnological Center of Plant Breeding, Ukrainian Academy of Agricultural Sciences, Odessa, 65036 Ukraine.
Genetika
|March 19, 2004
Summary
Simple sequence repeat (SSR) markers precisely identify maize genotypes and parental lines. This research proposes a genetic formula system for cataloging maize germplasm for effective breeding applications.
Area of Science:
- Plant genetics and breeding
- Molecular biology
- Genomics
Context:
- Advanced molecular markers are crucial for detailed plant genotype characterization.
- Simple sequence repeat (SSR) analysis is a powerful second-generation molecular marker technique.
Purpose:
- To characterize unique genotypes of 40 maize accessions using SSR markers.
- To develop a system for registering maize genotypes based on allelic states for germplasm management.
Summary:
- Polymerase chain reaction (PCR) was used to establish unique genotypes at ten SSR loci for 40 maize accessions.
- SSR analysis identified heterozygotes in simple hybrids, enabling high-probability identification of parental forms and exclusion of nonparental forms.
- A novel system for registering maize genotypes as genetic formulas, reflecting microsatellite loci allelic states, was proposed.
Impact:
- Facilitates the cataloging and preservation of the maize gene pool.
- Enhances the effective utilization of maize germplasm in breeding programs.
- Provides a robust method for parentage verification in maize hybrids.