Genetic Analysis and Gene Mapping of Short Root Mutant Rice ksr1

作     者：NING Yong-qiang DING Wo-na ZHU Shi-hua Yu Hang-wei Yu Hang Lu Kai-xing NING Yong-qiang, DING Wo-na, ZHU Shi-hua, YU Hang-wei, YU Hang, LU Kai-xing (Laboratory of Plant Molecular Biology, Ningbo University, Ningbo 315211, China)

作者机构：Laboratory of Plant Molecular Biology Ningbo University Ningbo 315211 China 

出 版 物：《Rice science》 (水稻科学（英文版）)

年 卷 期：2011年第18卷第1期

页      面：67-70页

学科分类：09[农学] 0901[农学-作物学] 

基　　金：supported by the Science and Technology Development of Zhejiang Province, China (Grant No. Z306401) the Science and Technology Foundation of Ningbo, China (Grant No. 2008A610070) Wong Kuancheng Education Foundation 

主　　题：rice short root gene mapping molecular marker 

摘      要：A short root mutant ksrl with the Kasalath background was isolated from an EMS-mutagenized population in rice. The root length of 6-day-old ksr1 seedlings was only about 20% of the wild type. Genetic analysis indicated that the short root phenotype of ksrl was controlled by a recessive mutation in a single nuclear-encoded gene. To map the ksrl mutation, an F2 population was generated by crossing the ksrl mutant with Nipponbare. The KSR1 locus was linked to the SSR marker RM1223 on rice chromosome 4. Eight new SSR markers and two InDel markers were developed around this marker. KSR1 gene was further mapped to a 155 kb region, flanked by the InDel marker 4-24725K and the SSR marker RM17182.