White clover (Trifolium repens L.) is a perennial species, it is part of the Fabaceae family, it grows as a creeping, branched perennial plant. It is widespread in a wide range of climates in the temperate and subtropical regions of the northern and southern hemispheres. Sustainable agricultural practices include the use of white clover or legumes to supply nitrogen to the soil in a crop rotation strategy to limit the use of agrochemicals. The species is frequently used as a cover crop, which serves as manure and is also included in mixtures with other forage plants in cattle feed. Several studies have reported the suppressive effects of white clover on weed and disease pressure or unexplained failure of overseeded grasses in clover-dominated pastures. The polyploidy and genetic diversity of white clover have made it difficult to make rapid progress in genetic and genomic studies. Molecular genetic studies have been carried out for the last quarter of a century, and at the initial stage, segregation, and diversity analyses were performed with restriction fragment length polymorphism (RFLP) markers, random amplified polymorphic DNA (RAPD), and markers by amplified fragment length polymorphism (AFLP). The first linkage map was constructed with 78 SSR and 57 AFLP markers using an F2 mapping population cross between parental inbred lines. A linkage map suggesting homeologous pairing of linkage groups was subsequently reported, which consisted of 493 SSR loci on 16 homeologous linkage groups of 1144 cM.

Trifolium repens, breeding of the productive traits, genetics features

agronomy

Presentation: poster