Microarray

A microarray is a glass slide or silicon chip that has had a library (a collection of DNA sequences) of single stranded DNA fragments laid down on its surface. The size of the libraries can be very large from 1000 to 150,000 with the highest density slides. The set of single stranded DNA fragments laid out on the surface are known as the probes, and these can be arrayed as a series of spots or squares in a grid depending on the procedure used to laid the DNA down. Robotic printing with pins or an inkjet printer gives rise to circular spots of DNA, and in situ creation of the DNA will create squares, as seen in Affymetrix chips. The DNA library can be created in various manners, as either complementary DNA (cDNA) that has been captured from cells as messenger RNA (mRNA) and sequenced to create expressed sequence tags (ESTs), or artificial sequences of DNA known as oligionucleotides (oligios).  Oligios of a given length are often called n-mers, so for example an oligionucleotides of 25 bases as used on Affymetrix chips is a 25-mer…………..read more about microarray analysis and design of experiments in GenStat in the documentation.

GenStat’s microarray capabilities

See what John Wass of Scientific Computing thinks about GenStat’s microarray analytical techniques.

Microarray Example files

Here are the microarray files for GenStat 14th Edition. Installation notes: please read. If you do not have administration rights for your computer, you will need to contact your IT department to install these files to the correct location. If you do have administration rights: 1. Download the zip file 2. Locate the folder Data within your GenStat installation (normally within Program Files) 3. Create a folder in the Data directory called Microarrays 4. Extract all the files from microarray.zip to the Microarrays folder you have created. GenStat will now be able to access the data when using the microarray examples. If you have GenStat, you can download the microarray example files and learn how you can analyse your microarray data using GenStat.

Previous Microarray files:

13th Edition

File name: marray13ed.exe
Date published: 13th July 2010
Download size: 73 MB
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12th Edition

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File name: marray12ed.exe
Date published: 20th July 2009
Download size: 73 MB

11th Edition

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File name: marray11ed.exe
Date published: 17th June 2008
Download size: 73 MB

10th Edition

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File name: marray10.exe
Date published: 17th June 2008
Download size: 75 MB

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