发明名称 |
IDENTICAL-BY-DESCENT FRAGMENT ENRICHMENT |
摘要 |
Methods of identifying DNA fragments comprising DNA that is identical by descent for two individuals are disclosed. The methods comprise obtaining a sample of genomic DNA from each of two individuals; contacting the samples of genomic DNA with a restriction endonuclease; methylating one of the DNA samples; mixing the methylated DNA sample and the unmethylated DNA sample, and incubating the DNA sample mixture under denaturing conditions; further incubating the DNA sample mixture under conditions which allow re-annealing of the DNA samples to form a mixture comprising homohybrid DNA fragments and heterohybrid DNA fragments; contacting the mixture with restriction endonuclease(s) which digest homohybrid DNA fragments; contacting the mixture with an endonuclease(s) which cleaves both strands of a mismatch-containing heterohybrid DNA fragment, to form a DNA sample mixture comprising perfectly-matched heterohybrid DNA fragments which are enriched in DNA fragments that are identical by descent for the two individuals.
|
申请公布号 |
WO0131060(A3) |
申请公布日期 |
2002.04.18 |
申请号 |
WO2000IB01645 |
申请日期 |
2000.10.18 |
申请人 |
DECODE GENETICS EHF.;GRANT, STRUAN;BLONDAL, THORARINN |
发明人 |
GRANT, STRUAN;BLONDAL, THORARINN |
分类号 |
G01N33/53;C12N15/09;C12Q1/68;G01N33/566;(IPC1-7):C12Q1/68 |
主分类号 |
G01N33/53 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|