Pigeon Breed Divergence and Feral Ancestry¶
English title: Divergence, convergence, and the ancestry of feral populations in the domestic rock pigeon
Authors: Sydney A. Stringham et al. (2012)
Journal: Current Biology
DOI: 10.1016/j.cub.2011.12.045
Plain-language take (an analogy)¶
This study is like tracing the family tree of domestic pigeons with DNA - working out how hundreds of breeds diverged from the wild rock pigeon, and which domestic breeds feral pigeons are closer kin to. For breeders, it helps explain the genetics behind "bloodline" and "strain".
Summary¶
Using genomic analysis, the study examined divergence between domestic pigeon breeds, convergent evolution, and the ancestral origins of feral populations. It revealed the genetic basis of breed diversification in domestic pigeons, and the relatedness of feral populations to different domestic breeds.
Research question¶
How did the many breeds of domestic pigeon diverge from the wild rock pigeon (Columba livia)? What is the relationship between feral populations and domestic breeds?
Background¶
Domestic pigeons comprise hundreds of morphologically distinct breeds, and the history of their divergence together with the origins of feral populations has long been a question in evolutionary genetics. Understanding the genetic relationships among breeds helps clarify the role of artificial selection.
Methods¶
The team collected samples from several domestic pigeon breeds and feral populations, then used genomic markers for population genetic analysis to infer breed divergence and population relatedness.
Findings¶
The study revealed marked genetic divergence among domestic pigeon breeds and found signs of convergent evolution between some breeds; feral populations are more closely related to particular domestic breeds.
What the results mean¶
The study deepens our understanding of the origins and genetic diversity of domestic pigeon breeds. For racing pigeon breeding, understanding the genetic relationships and divergence history among breeds supports a scientific view of bloodline, strain and genetic diversity.
Evidence grade¶
Population genetics study - reveals population divergence and relatedness and provides a genetic basis for understanding breed ancestry, but it does not address causation for any single performance trait.
Testing services on the main site¶
Testing services built on the scientific literature - visit the SENO Testing Center main site → Knowledge Center.