Combining signals from spotted cDNA microarrays 1 obtained at different scanning intensities

نویسنده

  • H. P. Piepho
چکیده

3 H. P. Piepho* 4 5 Bioinformatics Unit, Institute for Crop Production and Grassland Research, University 6 of Hohenheim, Fruwirthstr. 23, 70599 Stuttgart, Germany 7 8 B. Keller 9 10 Bioinformatics Unit, Institute for Crop Production and Grassland Research, University 11 of Hohenheim, Fruwirthstr. 23, 70599 Stuttgart, Germany 12 13 N. Hoecker 14 15 Center for Plant Molecular Biology, Department of General Genetics, University of 16 Tuebingen, Auf der Morgenstelle 28, 72076 Tuebingen, Germany 17 18 F. Hochholdinger 19 20 Center for Plant Molecular Biology, Department of General Genetics, University of 21 Tuebingen, Auf der Morgenstelle 28, 72076 Tuebingen, Germany 22 23 24 *To whom correspondence should be sent 25 © The Author (2006). Published by Oxford University Press. All rights reserved. For Permissions, please email: [email protected]

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Combining signals from spotted cDNA microarrays obtained at different scanning intensities

MOTIVATION The analysis of spotted cDNA microarrays involves scanning of color signals from fluorescent dyes. A common problem is that a given scanning intensity is not usually optimal for all spotted cDNAs. Specifically, some spots may be at the saturation limit, resulting in poor separation of signals from different tissues or conditions. The problem may be addressed by multiple scans with va...

متن کامل

Measuring absolute expression with microarrays with a calibrated reference sample and an extended signal intensity range.

Gene expression ratios derived from spotted-glass microarray experiments have become invaluable to researchers by providing sensitive and comprehensive indicators of the molecular underpinnings of cell behaviors and states. However, several drawbacks to this form of data have been noted, including the inability to relate ratios to absolute expression levels or to compare experimental conditions...

متن کامل

Analysis of repeatability in spotted cDNA microarrays.

We report a strategy for analysis of data quality in cDNA microarrays based on the repeatability of repeatedly spotted clones. We describe how repeatability can be used to control data quality by developing adaptive filtering criteria for microarray data containing clones spotted in multiple spots. We have applied the method on five publicly available cDNA microarray data sets and one previousl...

متن کامل

Concerns about unreliable data from spotted cDNA microarrays due to cross-hybridization and sequence errors.

We discuss our concerns regarding the reliability of data generated by spotted cDNA microarrays. Two types of error we highlight are cross-hybridization artifact due to sequence homologies and sequence errors in the cDNA used for spotting on microarrays. We feel that statisticians who analyze microarray data should be aware of these sources of unreliability intrinsic to cDNA microarray design a...

متن کامل

Hybridization cross-reactivity within homologous gene families on glass cDNA microarrays.

Glass cDNA microarrays can be used to profile the expression of thousands of gene targets in a single experiment. However, the potential for hybridization cross-reactivity needs to be considered when interpreting the results. Here, we describe hybridization experiments with a model array representing four distinct functional classes (families): chemokines, cytochrome P-450 isozymes, G proteins,...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005