Deletions in the KAP6-1 gene are associated with fiber traits in cashmere-producing goats
Deletions in the KAP6-1 gene are associated with fiber traits in cashmere-producing goats
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DOI：
10.1080/10495398.2021.1881529
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发表时间：
2021-02
影响因子：
3.7
通讯作者：
Jin Zhao;Q. Ding;Lan Li;P. Kalds;Shiwei Zhou;Jiayuan Sun;Shuhong Huang;Xiaolong Wang;Yulin Chen
中科院分区：
文献类型：
--
作者：
Jin Zhao;Q. Ding;Lan Li;P. Kalds;Shiwei Zhou;Jiayuan Sun;Shuhong Huang;Xiaolong Wang;Yulin Chen
Abstract Keratin-associated proteins (KAPs) are important structural components of fibers that predominantly present in the ortho-cortex. These proteins form a cross-linked network with keratin intermediate filaments (KIFs), thus producing a strong hair shaft. The keratin-associated protein 6-1 gene (KAP6-1) is a member of the KAPs family that has a potential correlation with fiber traits. In this study, we investigated the influence of KAP6-1 sequence polymorphisms on the fiber characteristics of a Chinese cashmere-producing goat breed (n = 844). Two main variants were found, including a three base pair (bp) deletion (namely B) and a 36-bp deletion (namely C), while the reference genotype of KAP6-1 was named A. Among them, the B variant was first reported on cashmere goats. This study then correlated these genotypes with the collected fiber data to investigate the potential association of these variants. The results showed that variant A is associated with decreased fiber diameter (p < 0.01), while variant C is associated with deceased fiber length (p < 0.01). These two related variants of the KAP6-1 gene have potential applications as gene-makers to improve the fiber diameter and length in cashmere-producing goats.
