Population genetic structure of two herds of Aberdeen Angus cattle breed in Colombia

IF 0.2 4区农林科学 Q4 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Revista Colombiana De Ciencias Pecuarias Pub Date : 2020-11-06 DOI:10.17533/udea.rccp.v34n4a05

Alejandra M Moreno-Sierra, M. Cerón-Muñoz, I. D. Soto-Calderón

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Abstract

Background: Two biotypes of Aberdeen Angus cattle breed, known as Old Type and New Type , that differ in their origin and beef production are formally recognized. In Colombia, this breed has been commercialized for approximately 80 years. Studies on the origin, kinship and levels of genetic diversity of this breed in Colombian herds are scarce, yet important for planning crossing and management strategies. Objective: To measure the genetic diversity and structure of two Colombian herds of Old Type and New Type biotypes of Aberdeen Angus from Huila and Cundinamarca provinces and assess mitochondrial introgression with other breeds. Methods: A set of ten microsatellites and sequences of the Mitochondrial Control Region were characterized. Estimators of genetic diversity and population differentiation along with tests of population assignment were applied. Results: Nuclear loci were highly polymorphic as shown by the Polymorphic Information Content (0.599) and the Probability of Identity (1.896 10 -08 ). Both populations were highly diverse and clearly differentiated into two groups corresponding to the Old Type and New Type phenotypes. In contrast, mitochondrial data failed to distinguish these two groups and showed extensive admixture

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哥伦比亚阿伯丁安格斯牛两个品种的群体遗传结构

背景：阿伯丁安格斯牛品种的两种生物型，即老型和新型，其起源和牛肉生产不同，已被正式承认。在哥伦比亚，这种品种已经商业化了大约80年。关于哥伦比亚畜群中该品种的起源、亲缘关系和遗传多样性水平的研究很少，但对规划杂交和管理策略很重要。目的：测定来自辉拉省和昆迪纳马卡省的两个哥伦比亚阿伯丁安格斯老型和新型生物群的遗传多样性和结构，并评估其与其他品种的线粒体渗入情况。方法：对一组10个微卫星和线粒体控制区序列进行鉴定。应用遗传多样性和群体分化的估计以及群体分配的检验。结果：核位点具有高度多态性，多态信息含量（0.599）和同一性概率（1.896 10-08）。两个群体都高度多样化，并明显分化为两组，分别对应于旧型和新型表型。相反，线粒体数据未能区分这两组，并显示出广泛的混合

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来源期刊

Revista Colombiana De Ciencias Pecuarias AGRICULTURE, DAIRY & ANIMAL SCIENCE-

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： The editors of Revista Colombiana de Ciencias Pecuarias (RCCP) welcome the submission of original manuscripts on experimental and clinical studies associated with the broad areas of animal sciences and veterinary medicine as they interface with biochemistry, molecular biology, physiology, pharmacology, toxicology, pathology, microbiology, parasitology, immunology and epidemiology. The scope of the journal includes studies of basic and applied research in animal management and production, feeding and nutrition, reproduction, breeding, genetics, animal welfare and behavior; as well as animal production focussed from biotechnology, soil science, agrostology, silvopastoral systems, livestock economics and the environment. The criteria for acceptance of papers submitted for publication are originality, quality and clarity of the content. Each contribution must be based on original, unpublished research that has not been simultaneously submitted to other journals. All papers will be peer reviewed. All authors bear responsibility for ensuring the integrity and quality of their reported research. It is the author''s responsibility to secure permission to use figures or tables that have been published elsewhere. Contributions may be classified as original research, review, rapid communication, clinical case studies or methodological articles, as well as news/commentaries or letters to the editor. Most review articles are invited by the editor. Authors interested in submitting a review article should contact the corresponding editor. Rapid publication of original manuscripts is a goal of the journal. Manuscripts must be written in English. Each manuscript is considered for publication with the understanding that it has not been simultaneously submitted to any other journal. Upon acceptance for publication, papers are subject to editorial review and revision.