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Preparation of Primary Myogenic Precursor Cell/Myoblast Cultures from Basal Vertebrate Lineages
Published on: April 30, 2014
Complex microsatellite dynamics in the myostatin gene within ruminants
Asa Tellgren-Roth1, Grigory Kolesov, Ana M Sifuentes-Rincón
1Department of Molecular Biology, University of Wyoming, Laramie, WY 82071, USA.
Journal of Molecular Evolution
|March 6, 2008
Summary
The myostatin microsatellite in cattle may have originated twice or been lost/gained in ruminants. Microsatellite activity is present in deer and bovids but not caprids, ovids, or pigs.
Area of Science:
- Genomics
- Evolutionary Biology
- Molecular Genetics
Background:
- A specific microsatellite was previously identified in the myostatin gene of cattle.
- Microsatellites are repetitive DNA sequences that can evolve rapidly.
Purpose of the Study:
- To investigate the evolutionary origins of the cattle myostatin microsatellite.
- To analyze microsatellite presence and evolution across artiodactyl mammals.
Main Methods:
- Phylogenetic analysis of the myostatin region in various artiodactyl species.
- Comparative genomics to assess microsatellite conservation and activity.
Main Results:
- The myostatin microsatellite appears to have originated independently twice or undergone multiple gain/loss events within ruminants.
- Deer and bovids exhibit microsatellite activity (length polymorphism), while caprids, ovids, pigs, and other mammals retain the ancestral state.
- Evidence suggests dynamic microsatellite evolution, including de novo birth.
Conclusions:
- The evolutionary history of the myostatin microsatellite is complex, involving potential independent origins or recurrent loss/gain.
- Comparative genomic analysis provides insights into microsatellite dynamics and conservation across mammalian genomes.
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