ArticleJournal of animal science2022
Genetic architecture of a composite beef cattle population.
Article in Journal of animal science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 13 citations in OpenAlex.
- Genomic analysis of breed composition and population structure in Montana composite cattle.Mammalian genome : official journal of the International Mammalian Genome Society · 2026Article
- A comparative study of runs of homozygosity islands common among 12 Australian beef cattle breeds.Journal of animal science · 2026Article
- A genome-wide assessment of the population structure of thirteen admixed and pure Australian beef cattle breeds.Journal of animal science · 2026Article
- Genomic diversity of Cameroonian Gudali and Gudali-cross cattle.Scientific reports · 2025Article
- Uncovering genomic diversity and signatures of selection in red Angus × Chinese red steppe crossbred cattle population.Scientific reports · 2025Article
- Integrating Genomic Selection and a Genome-Wide Association Study to Improve Days Open in Thai Dairy Holstein Cattle: A Comprehensive Genetic Analysis.Animals : an open access journal from MDPI · 2024Article
- Selective signatures in composite MONTANA TROPICAL beef cattle reveal potential genomic regions for tropical adaptation.PloS one · 2024Article
- The effects of genotype-by-environment interactions on body condition score across three winter supplemental feed environments in a composite beef cattle breed in Montana.Translational animal science · 2024Article
- A gene bank's collection of genetic diversity among minor chicken breeds.Poultry science · 2023Article
- Genome-wide association study for carcass weight in pasture-finished beef cattle in Hawai'i.Frontiers in genetics · 2023Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Composite breeds are widely used in the beef industry. Composites allow producers to combine desirable traits from the progenitor breeds and simplify herd management, without repeated crossbreeding and maintenance of purebreds. In this study, genomic information was used to evaluate the genetic composition and characteristics of a three-breed beef cattle composite. This composite population referred to as Composite Gene Combination (CGC) consisted of 50% Red Angus, 25% Charolais, and 25% Tarentaise. A total of 248 animals were used in this study: CGC (n = 79), Red Angus (n = 61), Charolais (n = 79), and Tarentaise (n = 29). All animals were genotyped with 777k HD panel. Principal component and ADMIXTURE analyses were carried out to evaluate the genetic structure of CGC animals. The ADMIXTURE revealed the proportion of Tarentaise increased to approximately 57%, whereas Charolais decreased to approximately 5% and Red Angus decreased to 38% across generations. To evaluate these changes in the genomic composition across different breeds and in CGC across generations, runs of homozygosity (ROH) were conducted. This analysis showed Red Angus to have the highest total length of ROH segments per animal with a mean of 349.92 Mb and lowest in CGC with a mean of 141.10 Mb. Furthermore, it showed the formation of new haplotypes in CGC around the sixth generation. Selection signatures were evaluated through Fst and HapFlk analyses. Several selection sweeps in CGC were identified especially in chromosomes 5 and 14 which have previously been reported to be associated with coat color and growth traits. The study supports our previous findings that progenitor combinations are not stable over generations and that either direct or natural selection plays a role in modifying the progenitor proportions. Furthermore, the results showed that Tarentaise contributed useful attributes to the composite in a cool semi-arid environment and suggests a re-exploration of this breed's role may be warranted.
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