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DOI	10.1016/j.livsci.2019.04.012
	Evaluation of genetic structure across US climate zones using prominent AI sires of Red Angus cattle
	Krehbiel, Bethany C.1,2; Thomas, Milton G.2; Wilson, Carrie S.1; Speidel, Scott E.2; Enns, R. Mark 2; Paiva, Samuel R.3; Blackburn, Harvey D.1
通讯作者	Blackburn, Harvey D.
来源期刊	LIVESTOCK SCIENCE
ISSN	1871-1413
EISSN	1878-0490
出版年	2019
卷号	225 页码:26-31
英文摘要	Climate variability can influence cattle performance. Therefore, the objective of this research was to determine fine-scale genetic diversity in Red Angus cattle in relation to climate zones. One hundred and seventy-five prominent Red Angus artificial insemination (AI) sires were sampled from five conterminous U.S. climate regions (Cool Arid, Cool Humid, Transition Zone, Warm Arid, and Warm Humid). Quantitative and molecular genetic approaches were used to evaluate genetic diversity for the cattle. The first method utilized neutral SNP to determine the genetic structure of the population. The second method used 66 SNP associated with traits potentially influenced by climate (body weight, heat stress, milk yield, heifer conception rate, and early embryonic survival) to detect loci under selection in each zone. Using 13,961 SNP, the genetic structure analysis revealed that there were eight sub-populations present within Red Angus. Furthermore, 23 of the 66 SNP were not in Hardy-Weinberg Equilibrium and loci under selection tests (P < 0.05). Chi-square tests revealed 7 of the 23 SNP to differ (P < 0.008) among climate zones. In conclusion, fine genetic substructure observed in Red Angus corresponded to U.S. climate zones. By identifying the genetic diversity within a prominent Bos taws beef breed in relation to climate, management strategies can be implemented to utilize the genetic diversity of this breed to adapt to changing climates.
英文关键词	Climate Genetic diversity Red Angus SNP
类型	Article
语种	英语
国家	USA ; Brazil
收录类别	SCI-E
WOS记录号	WOS:000472698000004
WOS关键词	HEREFORD CATTLE ; ENVIRONMENT INTERACTION ; POPULATION-STRUCTURE ; GENOTYPE ; PROGRAMS
WOS类目	Agriculture, Dairy & Animal Science
WOS研究方向	Agriculture
来源机构	Colorado State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217514
作者单位	1.ARS, Natl Anim Germplasm Program, Natl Lab Genet Resources Preservat, USDA, 1111 S Mason St, Ft Collins, CO 80521 USA; 2.Colorado State Univ, Dept Anim Sci, 350W Pitkin St, Ft Collins, CO 80523 USA; 3.EMBRAPA Recursos Genet & Biotechnol Brasilia, Brasilia, DF, Brazil
推荐引用方式 GB/T 7714	Krehbiel, Bethany C.,Thomas, Milton G.,Wilson, Carrie S.,et al. Evaluation of genetic structure across US climate zones using prominent AI sires of Red Angus cattle[J]. Colorado State University,2019,225:26-31.
APA	Krehbiel, Bethany C..,Thomas, Milton G..,Wilson, Carrie S..,Speidel, Scott E..,Enns, R. Mark.,...&Blackburn, Harvey D..(2019).Evaluation of genetic structure across US climate zones using prominent AI sires of Red Angus cattle.LIVESTOCK SCIENCE,225,26-31.
MLA	Krehbiel, Bethany C.,et al."Evaluation of genetic structure across US climate zones using prominent AI sires of Red Angus cattle".LIVESTOCK SCIENCE 225(2019):26-31.