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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » Animal Genomics and Improvement Laboratory » Research » Publications at this Location » Publication #391044

Research Project: Enhancing Genetic Merit of Ruminants Through Improved Genome Assembly, Annotation, and Selection

Location: Animal Genomics and Improvement Laboratory

Title: Genetic diversity and inbreeding in US Jersey population and germplasm collection

item SRIKANTH, KRISHNAMOORTHY - Cornell University
item Neupane, Mahesh
item JAAFAR, MOHD - Cornell University
item WOLFE, CARI - American Jersey Cattle Association
item HUSON, HEATHER - Cornell University
item Van Tassell, Curtis - Curt
item Blackburn, Harvey

Submitted to: World Congress of Genetics Applied in Livestock Production
Publication Type: Proceedings
Publication Acceptance Date: 2/18/2022
Publication Date: 7/7/2022
Citation: Srikanth, K., Neupane, M., Jaafar, M.A., Wolfe, C.W., Huson, H.J., Van Tassell, C.P., Blackburn, H.D. 2022. Genetic diversity and inbreeding in US Jersey population and germplasm collection. World Congress of Genetics Applied in Livestock Production. Front Matter, Commun. 243, pp. 1029-1032.

Interpretive Summary:

Technical Abstract: Genetic diversity is needed to improve health, production traits and for breed conservation. Germplasm collection conserves diversity and enables population reconstruction or corrective mating as needed. The objective of this study was to evaluate genetic diversity in US Jersey cattle and identify animals for germplasm preservation to capture population diversity. Genotype and pedigree information on 36,179 Jersey bulls were obtained from the Council on Dairy Cattle Breeding (CDCB), including the 782 Jersey bulls preserved by the USDA-ARS National Animal Germplasm Program (NAGP). Genetic diversity indices (Ho, He, MAF) were similar in both the groups. Admixture results suggested some differences in the genetic composition between the groups. The pedigree and genomic inbreeding ranged between 7.68 (F_PED) and 15.77 (F_ROH) for CDCB animals, and between 6.30 (F_PED) and 14.43 (F_ROH) in the NAGP collected animals. The average correlation between genomic and pedigree inbreeding was 0.63, while between genomic inbreeding estimates was 0.94.