Arid
DOI10.1016/j.rama.2015.02.001
Genetic Influences on Cattle Grazing Distribution: Association of Genetic Markers with Terrain Use in Cattle
Bailey, Derek W.1; Lunt, Steven1; Lipka, Adrienne1; Thomas, Milt G.2; Medrano, Juan F.3; Canovas, Angela3; Rincon, Gonzalo3; Stephenson, Mitch B.1; Jensen, Delyn4
通讯作者Bailey, Derek W.
来源期刊RANGELAND ECOLOGY & MANAGEMENT
ISSN1550-7424
EISSN1551-5028
出版年2015
卷号68期号:2页码:142-149
英文摘要

Eighty-seven cows were GPS (Global Positioning System) tracked for 1 to 3 months in mountainous and/or extensive pastures at five ranches located in New Mexico, Arizona, and Montana. The Illumina Bovine HD SNP array, which evaluates approximately 770,000 genetic markers (i.e., single nucleotide polymorphisms; SNPs) across the 30 bovine chromosomes, was used to genotype DNA from these cows and to examine genetic associations with grazing distribution. Terrain use indexes were calculated from tracking data based on normalized averages of slope use, elevation use, and distance travelled from water. Genetic analyses identified a chromosomal region, known as a quantitative trait locus (QTL), associated with these traits. One genetic marker on chromosome 29 identified a gene that has been reported to be involved in locomotion, motivation, and spatial memory. This locus accounted for 24% of the phenotypic variation in use of steep slopes and high elevations, while another QTL on chromosome 17 accounted for 23% of the phenotypic variation. Three other QTLs accounted for 10% to 20% of the variation in terrain use indexes. Using results from the initial high-density genetic marker analyses, a smaller 50-SNP panel was developed targeting previously identified QTL regions and was used to evaluate the 85 cows tracked previously with an additional 73 cows from four ranches. With the 50-SNP panel analyses, multiple genetic markers near or within the gene identified on chromosome 29 confirmed the association with indexes of terrain use. In addition, genetic markers on chromosomes 4, 8, 12, and 17 accounted for a significant portion of the phenotypic variation in terrain use indexes. The associations between terrain use indexes and genetic markers near candidate genes demonstrate that grazing distribution can be inherited and provide a new approach to associate genetic variation with cattle grazing behavior of range beef cattle. (C) 2015 Society for Range Management. Published by Elsevier Inc. All rights reserved.


英文关键词genotype global positioning system grazing behavior single-nucleotide polymorphism
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000353217600004
WOS关键词FOOTHILL RANGELAND ; CHIHUAHUAN DESERT ; GROWTH-HORMONE ; SPATIAL MEMORY ; BRANGUS BULLS ; COWS ; LIVESTOCK ; PATTERNS ; IDENTIFICATION ; PERFORMANCE
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
来源机构New Mexico State University ; University of California, Davis ; Colorado State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/190112
作者单位1.New Mexico State Univ, Dept Anim & Range Sci, Las Cruces, NM 88003 USA;
2.Colorado State Univ, Dept Anim Sci, Ft Collins, CO 80523 USA;
3.Univ Calif Davis, Dept Anim Sci, Davis, CA 95616 USA;
4.Montana State Univ, Northern Agr Res Ctr, Havre, MT 59501 USA
推荐引用方式
GB/T 7714
Bailey, Derek W.,Lunt, Steven,Lipka, Adrienne,et al. Genetic Influences on Cattle Grazing Distribution: Association of Genetic Markers with Terrain Use in Cattle[J]. New Mexico State University, University of California, Davis, Colorado State University,2015,68(2):142-149.
APA Bailey, Derek W..,Lunt, Steven.,Lipka, Adrienne.,Thomas, Milt G..,Medrano, Juan F..,...&Jensen, Delyn.(2015).Genetic Influences on Cattle Grazing Distribution: Association of Genetic Markers with Terrain Use in Cattle.RANGELAND ECOLOGY & MANAGEMENT,68(2),142-149.
MLA Bailey, Derek W.,et al."Genetic Influences on Cattle Grazing Distribution: Association of Genetic Markers with Terrain Use in Cattle".RANGELAND ECOLOGY & MANAGEMENT 68.2(2015):142-149.
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