Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Source and Inheritance of within Cultivar Residual Variation Detected in an indica Rice Variety IR64

WU Jian-li1,2,SHI Yong-feng1,CHEN Jie1,Casiana VERA CRUZ 2,ZHUANG Jie-yun1,Hei LEUNG 2,ZHENG Kang-le1,(1Chinese National Center for Rice Improvement /State Key Laboratory of Rice Biology,China National Rice Research Institute,Hangzhou 310006,China;2Entomology and Plant Pathology Division,International Rice Research Institute,DAPO BOX 7777,Metro Manila,Philippines)  
The phenotypically uniform indica rice variety IR64 was chosen for study of the source and inheritance of within cultivar residual variation using a set of SSR markers.Molecular heterogeneity in IR64 was identified on the short arm of chromosome 2 involving at least five 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 was one of few examples to verify successfully that within cultivar variations of SSR in morphologically uniform selfing crops came from its parental lines,which has immediate and commercial applications including test of seed purity,varietal fingerprinting,and curation and propagation of germplasm collections.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved