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用磁珠富集法分离亚麻基因组微卫星分子标记

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成果类型:
期刊论文
作者:
邓欣;陈信波;龙松华;王孝纯;高原;...
通讯作者:
CHEN, X.-B.
作者机构:
[王进; 王玉富; 邓欣; 龙松华] Key Laboratory of Genetic Improvement and Engineering Microbiology for Bast Fiber Crops, Ministry of Agriculture, Institute of Bast Fiber Crops, Changsha, 410128, China
Crop Gene Engineering Key Laboratory of Hunan Province, Hunan Agricultural University, Changsha, 410128, China
[王孝纯] College of Agricultural Resources and Environmental Sciences, Heilongjiang University, Harbin, 150080, China
[陈信波; 何东锋; 高原] Key Laboratory of Genetic Improvement and Engineering Microbiology for Bast Fiber Crops, Ministry of Agriculture, Institute of Bast Fiber Crops, Changsha, 410128, China, Crop Gene Engineering Key Laboratory of Hunan Province, Hunan Agricultural University, Changsha, 410128, China
通讯机构:
[CHEN, X.-B.] K
Key Laboratory of Genetic Improvement and Engineering Microbiology for Bast Fiber Crops, , Changsha, 410128, China
语种:
中文
关键词:
亚麻;微卫星;磁珠富集
关键词(英文):
enrichment with magnetic beads;flax;microsatellite
期刊:
Acta Agronomica Sinica
ISSN:
1875-2780
年:
2008
卷:
34
期:
12
页码:
2099-2105
基金类别:
中国农业科学院杰出人才科研启动经费资助
机构署名:
本校为其他机构
院系归属:
生物科学技术学院
摘要:
应用Dynal磁珠一生物素标记的微卫星探针(CT)15与亚麻基因组DNA酶切片段杂交,捕获300~1500bp含有微卫星序列的DNA片段,连接到pMD18.T载体中,构建富集微卫星序列的小片段插入文库。利用接头引物和根据微卫星核心序列设计的引物VRV(CT)15使用PCR方法直接对文库筛选,从422个转化子中获得了104个阳性克隆,对其进行测序分析,获得了97个微卫星序列,微卫星序列的富集效率达到22.99%,PCR扩增筛选效率93.27%。对97个微卫星序列进行比对分析,其中51个重复序列的两端序列高度相似,据其设计的特异引物对阳性克隆进行2次筛选,能淘汰相似度高的同类序列,提高筛选亚麻微卫星标记的效率。...
摘要(英文):
Flax (Linum usitatissimum L.) is one of the important oil and fiber crops in the world and can be used as a model plant for bast fiber genomics. The objectives of this study were to set up an efficient protocol to develop microsatellite markers for flax genetic linkage map construction, gene mapping, and marker-assisted selection (MAS). The 300-1 500 bp flax DNA fractions containing microsatellite sequences were captured by hybridizating the digested genomic DNA fragments with the oligonucleotide probes (CT)15 attached to streptavadin coa...

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