A simple and reliable assay for detecting specific nucleotide sequences   in plants using optical thin-film biosensor chips

doi:10.1111/j.1365-313X.2006.02951.x

CORC > 北京大学 > 生命科学学院

	A simple and reliable assay for detecting specific nucleotide sequences in plants using optical thin-film biosensor chips
	Bai, Su-Lan ; Zhong, Xiaobo ; Ma, Ligeng ; Zheng, Wenjie ; Fan, Liu-Min ; Wei, Ning ; Deng, Xing Wang
刊名	plant journal
	2007
关键词	optical thin-film biosensor chip microarray nucleotide sequence detection GMO SNP GENETICALLY-MODIFIED ORGANISMS REAL-TIME PCR MODIFIED CROPS MICROARRAY ANALYSIS FOOD-PRODUCTION RAPD MARKERS RICE GENOME ARABIDOPSIS TECHNOLOGY
DOI	10.1111/j.1365-313X.2006.02951.x
英文摘要	Here we report the adaptation and optimization of an efficient, accurate and inexpensive assay that employs custom-designed silicon-based optical thin-film biosensor chips to detect unique transgenes in genetically modified (GM) crops and SNP markers in model plant genomes. Briefly, aldehyde-attached sequence-specific single-stranded oligonucleotide probes are arrayed and covalently attached to a hydrazine-derivatized biosensor chip surface. Unique DNA sequences (or genes) are detected by hybridizing biotinylated PCR amplicons of the DNA sequences to probes on the chip surface. In the SNP assay, target sequences (PCR amplicons) are hybridized in the presence of a mixture of biotinylated detector probes and a thermostable DNA ligase. Only perfect matches between the probe and target sequences, but not those with even a single nucleotide mismatch, can be covalently fixed on the chip surface. In both cases, the presence of specific target sequences is signified by a color change on the chip surface (gold to blue/purple) after brief incubation with an anti-biotin IgG horseradish peroxidase (HRP) to generate a precipitable product from an HRP substrate. Highly sensitive and accurate identification of PCR targets can be completed within 30 min. This assay is extremely robust, exhibits high sensitivity and specificity, and is flexible from low to high throughput and very economical. This technology can be customized for any nucleotide sequence-based identification assay and widely applied in crop breeding, trait mapping, and other work requiring positive detection of specific nucleotide sequences.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000243864500016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Plant Sciences; SCI(E); EI; PubMed; 中国科学引文数据库(CSCD); 21; ARTICLE; 2; 354-366; 49
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/198565]
专题	生命科学学院
推荐引用方式 GB/T 7714	Bai, Su-Lan,Zhong, Xiaobo,Ma, Ligeng,et al. A simple and reliable assay for detecting specific nucleotide sequences in plants using optical thin-film biosensor chips[J]. plant journal,2007.
APA	Bai, Su-Lan.,Zhong, Xiaobo.,Ma, Ligeng.,Zheng, Wenjie.,Fan, Liu-Min.,...&Deng, Xing Wang.(2007).A simple and reliable assay for detecting specific nucleotide sequences in plants using optical thin-film biosensor chips.plant journal.
MLA	Bai, Su-Lan,et al."A simple and reliable assay for detecting specific nucleotide sequences in plants using optical thin-film biosensor chips".plant journal (2007).