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Related Experiment Video

Updated: Jul 6, 2026

Visualizing the Beating Heart in Drosophila

Visualizing the Beating Heart in Drosophila

Published on: September 28, 2009

A genomic-systems biology map for cardiovascular function.

M Stoll¹, A W Cowley, P J Tonellato

¹Department of Physiology, Bioinformatics Research Center, and, Human and Molecular Genetics Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226-0509, USA.

Science (New York, N.Y.)

|November 27, 2001

Summary

This summary is machine-generated.

Researchers mapped 81 cardiovascular and renal traits in rats, identifying trait aggregates on specific chromosomes. This systems biology approach aids gene discovery and translation to human genomics.

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Area of Science:

Genomics
Systems Biology
Physiology

Background:

The availability of the human genome sequence necessitates advanced methods for defining gene function within a systems biology framework.
Understanding complex trait genetics requires integrating phenotypic data with genomic information.

Purpose of the Study:

To map cardiovascular and renal phenotypes in a rat model to identify genetic loci associated with these traits.
To utilize a systems biology approach by analyzing physiological correlations for gene discovery and comparative genomics.

Main Methods:

Studied 239 cardiovascular and renal phenotypes in 113 male rats from an F2 intercross.
Performed genome-wide mapping of 81 identified traits.
Analyzed patterns of correlations among traits to establish "physiological profiles".

Main Results:

Successfully mapped 81 cardiovascular and renal traits to the rat genome.
Identified significant aggregates of traits on chromosomes 1, 2, 7, and 18.
Established "physiological profiles" demonstrating trait interrelationships.

Conclusions:

The identified trait aggregates and physiological profiles provide a foundation for gene hunting in cardiovascular and renal systems.
This study facilitates mechanism-based physiological research.
The findings support the translation of rat genomic data to the human genome through comparative genomics.