Rice Germplasm Search and Summary
Germplasm Source: Oryza sativa Variety Group:
Source Description Number
Germplasm DB:
IRRI International Rice Research Institute 100659
Agridata China National Agricultural Science Data Sharing Center 5052
Oryzabase Rice Database, National BioResource Project (NBRP), Japan 5043
Germplasm Book:
WanJM Wan J M. Rice Genetic Breeding and Variety Pedigree in China (1986-2005). China Agriculture Press, 2010 2416
LinSC Lin S C. China Rice Varieties and Pedigree (1957-1986). Shanghai Science Technology Publishers, 1991 2198
WGS Germplasm Study:
Rice3k The 3,000 Rice Genomes Project 2964
MBK1287 Molecular Module-based Designer Breeding Systems, Molecular Breeding Knowledgebase 1213
ISG575 Molecular Module-based Designer Breeding Systems, Institute of Subtropical Agriculture, Chinese Academy of Sciences. 575
In addition to the data source listed above, the basic information of rice germplasm was also collected from the following public databases: CNRRI and CGRIS.
The redundant germplasm items were merged which were identified based on variety name, accession ID, variety group and breeding parent. Now a total of 130578 Oryza sativa (Asian cultivated rice) and 1730 Oryza glaberrima (African cultivated rice) germplasms were stored in the database.

In the database, 115975 Oryza sativa germplasms have classic variety group information. This grouping follows the IRRI standards which are based mainly on the morphologic features. Hybrid and Sterile accessions that do not belong to the classification system are listed separately.
Oryza sativa Ecotype Group:

Besides, based on SNP phylogenetic analyses, the accessions in WGS population have been classified into two major groups - Indica and Japonica, and five small groups - the Aus/boro, Basmati/sadri, Temperate japonicas, Tropical japonicas and Intermediate. Subsequent population structure analysis follows this classification method.