当前位置: 首页 > 文章 > 利用四引物扩增受阻突变体系PCR技术检测水稻低直链淀粉含量基因Wx-mq 中国水稻科学 2013 (5) 529-534
Position: Home > Articles > Detection of Wx-mq Gene for Low-amylose Content by Tetra-primer Amplification Refractory Mutation System PCR in Rice Chinese Journal of Rice Science 2013 (5) 529-534

利用四引物扩增受阻突变体系PCR技术检测水稻低直链淀粉含量基因Wx-mq

作  者:
陈涛;骆名瑞;张亚东;朱镇;赵凌;赵庆勇;周丽慧;姚姝;于新;王才林
单  位:
江苏省农业科学院粮食作物研究所/江苏省优质水稻工程技术研究中心/国家水稻改良中心南京分中心
关键词:
水稻;低直链淀粉含量;Wx-mq基因;四引物扩增受阻突变体系PCR
摘  要:
根据Wx-mq基因存在的单核苷酸变异,利用四引物扩增受阻突变体系PCR(Tetra-primer ARMS-PCR)的方法设计特异引物,对12个水稻品种(或品系)以及武育粳3号(不含Wx-mq基因)/关东194(含Wx-mq基因)的F2分离群体进行扩增,依据其PCR产物的带型,可以准确区分出Wx-mq基因纯合、非Wx-mq基因纯合以及杂合基因型三种类型,其电泳结果与成熟后对胚乳外观特性鉴定完全一致。因此,作为一种简单、低成本的实用技术,四引物ARMS-PCR可以广泛用于Wxmq基因水稻的资源鉴定和分子标记辅助育种。
译  名:
Detection of Wx-mq Gene for Low-amylose Content by Tetra-primer Amplification Refractory Mutation System PCR in Rice
作  者:
CHEN Tao;LUO Ming-rui;ZHANG Ya-dong;ZHU Zhen;ZHAO Ling;ZHAO Qing-yong;ZHOU Li-hui;YAO Shu;YU Xin;WANG Cai-lin;Institute of Food Crops,Jiangsu Academy of Agricultural Sciences,Jiangsu High Quality Rice R&D Center,Nanjing Branch of China National Center for Rice Improvement;
关键词:
rice;;low-amylose content;;Wx-mq gene;;tetra-primer ARMS-PCR
摘  要:
To improve the efficiency of selection for Wx-mq gene in breeding,we designed specific primers by tetraprimer Amplification Refractory Mutation System PCR(ARMS-PCR) method,according to the single nucleotide mutation in Wx-mq gene to analyze 12 rice varieties(or lines) and the F2 segregation population derived from the cross of low-amylose content variety Kanto 194(with Wx-mq gene) and normal variety Wuyujing 3(without Wx-mq gene).The results of PCR detection indicated that three genotypes including the homozygous genotype with Wx-mq,the homozygous genotype without Wx-mq and the heterozygous genotype could be clearly distinguished according to band types,and it was completely consistent with the result of phenotypic analysis.Therefore,as a simple and low-cost technique,the tetra-primer ARMS-PCR could be widely used to identify rice resources with Wx-mq gene and applied in molecular marker-assisted breeding.

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