Journal
ANIMAL GENETICS
Volume 54, Issue 1, Pages 3-23Publisher
WILEY
DOI: 10.1111/age.13272
Keywords
fiber attributes; genomic footprints; natural fibers; selection signature
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This article introduces natural fibers derived from diverse animal species, which have gained increased attention recently due to their favorable environmental effects, long-term sustainability benefits, and remarkable physical and mechanical properties. Domestication and selective breeding play an imperative role in shaping the genomes and positively impacting the overall productivity of fiber-producing species. Recent advances in genomics have enabled the discovery of selection signatures across the genome. Therefore, a detailed investigation of the genomes of various fiber-producing species is crucial for identifying candidate genes associated with important fiber attributes. The objective of this review is to provide a comprehensive overview of selection signatures and selective sweeps, discuss the main methods used for their detection, and address the selection signature studies conducted in fiber-producing animal species.
Natural fibers derived from diverse animal species have gained increased attention in recent years due to their favorable environmental effects, long-term sustainability benefits, and remarkable physical and mechanical properties that make them valuable raw materials used for textile and non-textile production. Domestication and selective breeding for the economically significant fiber traits play an imperative role in shaping the genomes and, thus, positively impact the overall productivity of the various fiber-producing species. These selection pressures leave unique footprints on the genome due to alteration in the allelic frequencies at specific loci, characterizing selective sweeps. Recent advances in genomics have enabled the discovery of selection signatures across the genome using a variety of methods. The increased demand for 'green products' manufactured from natural fibers necessitates a detailed investigation of the genomes of the various fiber-producing plant and animal species to identify the candidate genes associated with important fiber attributes such as fiber diameter/fineness, color, length, and strength, among others. The objective of this review is to present a comprehensive overview of the concept of selection signature and selective sweeps, discuss the main methods used for its detection, and address the selection signature studies conducted so far in the diverse fiber-producing animal species.
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