Selection Signatures for Fiber Production in Commercial Species: A Review

The review discusses the role of natural fibers derived from various animal species, with a focus on the impact of domestication and selective breeding on the genomes of fiber-producing species. It introduces the concept of selection signatures, unique genomic footprints left due to selection pressures, which can be identified using advanced genomics to understand the genetic basis of traits like fiber diameter, color, length, and strength. The paper reviews various statistical methods and software tools used to detect these signatures, and cites numerous studies that have identified genes associated with fiber production in sheep, goats, llamas, alpacas, rabbits, and yaks. The review concludes by emphasizing the potential of this field in improving fiber production and quality, and suggests that understanding these genomic regions can aid in the adoption of optimal genomic selection and breeding programs for the genetic improvement of the targeted species.