Lettuce population sequencing

The Lettuce Genetic Variation Detection and Seed Propagation Project of the China National Gene Bank and Wageningen University in the Netherlands. The two parties will jointly promote the research and application of plant genetic resources in food and agriculture. Currently, the project has completed the sequencing of 2500 lettuce , Including all varieties of lettuce and 60% breeding materials. The preliminary work was accepted by "Nature Genetics".

The Centre For Genetic Resources ,The Netherlands(CGN) will share all the existing lettuce germplasm resources with the China National Gene Bank. At the same time, the China National Gene Bank will also take advantage of its "three databases and two platforms" to provide technical support and guarantee for the digitalization and storage of lettuce germplasm resources, lettuce genetic variation detection and breeding. In addition, in the end, all information will be shared with the public for free through the platform of the China National Gene Bank, which truly realizes the China National Gene Bank's concept of “shared, shared and shared” genetic resources.

Molecular marker-assisted selection and whole genome selection are the current mainstream molecular-assisted breeding methods, and the estimation of breeding value mainly depends on the effect of molecular markers obtained by traditional gene chip screening. Since gene chip technology can only screen out known molecular markers, these molecular markers cannot explain all genetic variation, which directly affects the prediction and selection of the target trait phenotype. The resequencing method can also detect existing or develop new ones. Therefore, the resolution of SNPs is increased. Molecular marker-assisted selection or genome-wide selection based on these SNP molecular markers can greatly improve the accuracy of phenotype prediction.

About the Centre For Genetic Resources, The Netherlands(CGN)

The Centre For Genetic Resources, The Netherlands (CGN) is the scientific research department of the Dutch government, which conducts related scientific research on genetic diversity and identification of important agricultural and forestry species. At the same time, CGN is also an independent scientific research institution within the DLO Foundation that assists the government in completing its functions. CGN is committed to ex situ conservation, in situ conservation, and promotion of the use of genetic propagation materials to support scientific research and breeding and make it part of the biological cultural heritage. In addition, CGN also provides policy support to the Dutch government and international organizations. The project involves agricultural and forestry crops, poultry, and livestock.