水稻科学（英文版）
水稻科學（英文版）
수도과학（영문판）
RICE SCIENCE
2007年
1期
21-26
,共6页
simple sequence repeat%residual heterogeneity%within cultivar variation%rice
The phenotypically uniform indica variety IR64 was chosen for study of the source and inheritance of within cultivar residual variation using a set of SSR markers. Residual heterogeneity in IR64 was identified on the short arm of chromosome 2 involving at least 5 SSR loci spanning nearly 30 cM. The SSR variations originated from the parental lines of IR64 (IR5657-33-2 / IR2061-465-1-5-5) and were segregating in the selfed bulk seed stock in a Mendelian manner for more than 20 years. This study verified that the within cultivar variations of SSR in a morphologically uniform variety IR64 of a selfing crop came from its parental lines, which has immediate and commercial applications including test of hybrid seed purity, varietal fingerprinting, and curation and propagation of germplasm collections.
