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[Genetic diversity in Tibetan chicken]
Zhi-Qiang Du1, Lu-Jiang Qu, Xian-Yao Li
1College of Animal Science and Technology, China Agricultural University, Beijing 100094, China.
Yi Chuan = Hereditas
|January 11, 2005
Summary
Tibetan chickens exhibit high genetic diversity at microsatellite loci, correlating with variations in their morphology and production traits. This genetic richness offers potential for breed resource exploitation.
Area of Science:
- Animal Genetics
- Poultry Science
- Population Genetics
Context:
- Tibetan chicken is an aboriginal breed with unique genetic features, resembling the Red Jungle Fowl.
- Understanding its genetic diversity is crucial for effective resource exploitation.
Purpose:
- To analyze the genetic polymorphism of Tibetan chickens using microsatellite markers.
- To correlate genetic diversity with observed morphological and performance variations.
Summary:
- Multiplex PCR and polyacrylamide gel electrophoresis (PAGE) were employed to assess polymorphism at 20 microsatellite loci.
- High levels of polymorphism were detected, with mean values for Polymorphism Information Content (C(PI)) of 0.67 and Heterozygosity (H) of 0.74.
- Macrochromosomes showed higher polymorphism than microchromosomes.
Impact:
- Findings reveal significant genetic diversity within the Tibetan chicken population.
- This diversity explains the observed discrepancies in individual morphology and production performance.
- Highlights the potential for utilizing Tibetan chickens as a valuable genetic resource.