Location: Animal Genomics and Improvement LaboratoryTitle: Genetic diversity and inbreeding in US Jersey population and germplasm collection
|SRIKANTH, KRISHNAMOORTHY - Cornell University|
|JAAFAR, MOHD - Cornell University|
|WOLFE, CARI - American Jersey Cattle Association|
|HUSON, HEATHER - Cornell University|
|Van Tassell, Curtis - Curt|
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. https://doi.org/10.3920/978-90-8686-940-4_243.
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.