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Updated: Jul 16, 2026

Accurate and Phenol Free DNA Sexing of Day 30 Porcine Embryos by PCR

Accurate and Phenol Free DNA Sexing of Day 30 Porcine Embryos by PCR

Published on: February 14, 2016

Advances in QTL mapping in pigs.

Max F Rothschild¹, Zhi-liang Hu, Zhihua Jiang

¹Department of Animal Science and the Center for Integrated Animal Genomics, Iowa State University, Ames, IA 50011, USA. mfrothsc@iastate.edu

International Journal of Biological Sciences

|March 27, 2007

Summary

Advances in porcine genetics have identified 1,675 quantitative trait loci (QTL) linked to economically important traits. Marker-assisted selection is improving pig breeding, with ongoing research in genomics and new trait discovery.

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Area of Science:

Animal Genetics
Quantitative Genetics
Genomic Selection

Background:

Significant progress in porcine genetic linkage maps and candidate gene discovery over 15 years.
Utilized exotic and commercial breed crosses for quantitative trait loci (QTL) scans and candidate gene analyses.

Purpose of the Study:

To review developments in porcine genetic research and their impact on the swine industry.
To highlight the discovery of genes associated with economically important traits in pigs.

Main Methods:

Analysis of 110 publications identifying 1,675 QTL.
Development and utilization of the PigQTLdb database.
Incorporation of marker-assisted selection in the commercial pig industry.

Main Results:

Identification of 1,675 QTL associated with growth rate, leanness, feed intake, meat quality, litter size, and disease resistance.
PigQTLdb serves as a valuable tool for in silico research.
Commercial pig industry actively uses marker-assisted selection for trait improvement.

Conclusions:

Ongoing sequencing efforts provide data for comparative genomics and large-scale single nucleotide polymorphism (SNP) association studies.
Continued development of novel trait families and measurement techniques are crucial for future discoveries in swine genetics.