绒山羊绒毛品质遗传研究进展

发布时间：2018-06-09 05:01

本文选题：绒毛品质 + 表型选择　；参考：《中国畜牧兽医》2016年12期

【摘要】：绒毛品质不仅影响绒山羊养殖的经济效益,还影响绒毛纺织品的质量。近年来,随着产绒量的提高,绒毛品质有下降趋势,为了提高生产效益,在生产过程中提高绒毛品质势在必行。绒毛品质是绒山羊育种中重要的选择参数,而控制绒毛品质的主要性状是数量性状,通过数量遗传学和分子遗传学寻找控制数量性状的主效基因,从而研究其生长机理和控制绒毛生长的基因的表达机制。作者综述了近年来有关绒毛品质的研究成果,其中包括通过表型选择来提高绒毛品质,且找到控制绒毛品质性状的HOX、BMP、KAP基因和色素基因等,还有寻找控制目标性状相应的QTL和对不同序列的SNPs进行GWAS分析,通过基因型的选择来提高绒毛品质,这些研究为提高绒毛品质奠定了理论基础,也为今后研究绒毛品质的遗传因素提供借鉴。
[Abstract]:The quality of wool not only affects the economic benefit of cashmere goat breeding, but also affects the quality of wool textiles. In recent years, with the increase of wool yield, the quality of wool has a downward trend. In order to improve the production efficiency, it is imperative to improve the quality of wool in the process of production. Villous quality is an important selection parameter in cashmere goat breeding, and the main character controlling villi quality is quantitative trait. The main genes controlling quantitative traits are found by quantitative genetics and molecular genetics. Therefore, the growth mechanism and the expression mechanism of genes controlling the growth of villi were studied. The authors reviewed the recent studies on villus quality, including phenotypic selection to improve the quality of villi, and to find out the Hoxo BMPP KAP gene and pigment gene that control the villi quality traits, and so on. The QTL for controlling target traits and Gwas analysis for SNPs of different sequences were also found to improve the quality of villi by selecting genotypes. These studies have laid a theoretical foundation for improving the quality of villi. It also provides reference for the study of genetic factors of wool quality in the future.
【作者单位】：内蒙古农业大学动物科学学院动物遗传育种与繁殖自治区重点实验室;
【基金】：国家绒毛用羊现代农业产业技术体系(CARS-40-05) 国家公益性行业(农业)科研专项(20130305903、20100319)
【分类号】：S827

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