Top > NIAS Core Collection
A core collection is a limited set of accessions representing, with a minimum of repetitiveness, the genetic diversity of a crop species and its wild relatives (Frankel 1984).
We modify the concept, and have developed the NIAS Core Collections. The each collection is set for diversity research, and consists of the minimum number of accessions retained genetic diversity of whole accessions maintained at the NIAS Genebank, respectively. The collections are suitable for breeding, allele screening, linkage disequilibrium, crop evolution, etc.
The core collections of rice cultivar, Japanese rice landrace and Japanese maize landrace are available now. We have developed more core collections as follows: Japanese azuki bean landrace, amaranth, sorghum, etc.
Now Available
- NIAS Global Rice Core Collection
The Collection consists of 69 accessions. It retained 90% of RFLP alleles detected in about 300 accessions selected based on the passport data from the whole rice collection (about 30 thousands accessions) maintained at the NIAS Genebank.
Reference: Kojima et al. (2005) Development of an RFLP-based Rice Diversity Research Set of Germplasm. Breeding Science 55 p431-440. - NIAS Rice Core Collection of Japanese Landraces
The Collection consists of 50 accessions. It retained 95% of SSR alleles detected in about 240 accessions selected based on the passport data from the whole Japanese landrace collections (about two thousands accessions) maintained at the NIAS Genebank.
Reference: Ebana K. et al. (2008) Development of mini core collection of Japanese rice landrace. Breeding Science 58 p281-291. - NIAS Maize Core Collection of Japanese Landraces
The Collection consists of 17 Hokkaido and 69 other accessions (86 accessions in total). They were respectively selected based on AFLP polymorphism from 300 and 1000 accessions maintained at the NIAS Genebank.
Distribution
Each collection's price is 15,000 yen per set. For more detail, please refer “distribution”.
