Breeding Science
Online ISSN : 1347-3735
Print ISSN : 1344-7610
Research papers
Development of mini core collection of Japanese rice landrace
Kaworu EbanaYoichiro KojimaShuichi FukuokaTsukasa NagamineMakoto Kawase
Author information
JOURNALS FREE ACCESS

Volume 58 (2008) Issue 3 Pages 281-291

Details
Download PDF (297K) Contact us
Abstract

A mini core collection of Japanese rice landrace was developed based on a genome-wide SSR polymorphism survey of 236 accessions. The accessions used in the initial survey were selected based on the historical record and passport data from the collection maintained at the Genebank of the National Institute of Agrobiological Sciences (NIAS). These accessions were analyzed using 32 SSR markers. A total of 247 alleles were detected and the number of alleles per locus ranged from 3 to 15 (mean 7.7). Principal coordinate analysis using SSR data enabled classification of the accessions into three major groups, two Japonica groups and one Indica group. To develop a Japanese landrace mini core collection, the SSR data on the 236 accessions were subjected to cluster analysis and 50 groups were recognized at a similarity index of 0.88. A single accession from each of the 50 groups was selected. These 50 accessions retained 87.5% of the alleles detected in the original 236 accessions, and covered the variation of the initial set of accessions in terms of several agro-morphological traits.

Information related to the author
© 2008 by JAPANESE SOCIETY OF BREEDING
Previous article Next article

Recently visited articles
feedback
Top