TLDR Certain gene mutations are linked to wool quality in sheep and could help in breeding for better wool.
In a study conducted on 418 Chinese Merino (Xinjiang type) sheep, researchers identified 20 mutation sites within six keratin (KRT) genes and analyzed their association with wool traits. Twelve of these mutations were silent, five were missense mutations leading to amino acid changes, two were nonsense mutations, and one was a same-sense mutation. The study found significant associations between specific genotypes of KRT31, KRT36, KRT38, and KRT85 genes and various wool characteristics such as fiber diameter, wool fineness score, and the number of crimps. Additionally, certain combinations of genotypes at KRT36, KRT38, and KRT85 loci showed a greater effect on wool traits. These findings suggest that these KRT genes and their combinations are important for determining wool quality in sheep and could be used to inform breeding programs for improved wool traits.
5 citations
,
March 2017 in “Gene” CAP1 decreases the expression of a hair-related protein in young Tan sheep's skin.
83 citations
,
May 2011 in “Experimental Dermatology” Sheep have 17 keratin genes, similar to humans, but with different expression patterns affecting wool and hair.
95 citations
,
March 2009 in “Differentiation” Gene expression in wool follicles changes with growth cycles, offering insights into wool and human hair growth.
62 citations
,
August 2006 in “Journal of Chromatography B” Modern techniques have improved the understanding of keratin proteins, revealing their roles in various cells and potential in disease diagnosis.
686 citations
,
February 2002 in “Current Opinion in Cell Biology” Keratin filaments are crucial for cell structure and protection, with ongoing discoveries about their genes and functions.
26 citations
,
December 1999 in “Journal of Investigative Dermatology” 235 citations
,
July 1999 in “Journal of biological chemistry/The Journal of biological chemistry” Human hair is made up of different keratins, some strong and some weak, with specific types appearing at various stages of hair growth.
40 citations
,
February 1994 in “Journal of Investigative Dermatology” 65 citations
,
February 1992 in “Development” Type II keratin genes are crucial for hair follicle differentiation and have a conserved structure and expression pattern.
83 citations
,
May 2011 in “Experimental Dermatology” Sheep have 17 keratin genes, similar to humans, but with different expression patterns affecting wool and hair.
The KRT84 gene is linked to better wool quality in Gansu Alpine Fine-wool sheep.
22 citations
,
April 2020 in “Scientific reports” Changthangi goats have specific genes that help produce Pashmina wool.
211 citations
,
April 2018 in “Cold Spring Harbor Perspectives in Biology” Keratins are crucial for cell structure, growth, and disease risk.
54 citations
,
November 2015 in “Methods in enzymology on CD-ROM/Methods in enzymology” Keratins are important for skin cell health and their problems can cause diseases.