Publications by authors named "G Brem"
The paternally inherited, male-specific part of the Y chromosome (MSY) is an ideal marker for studying the origin, genealogies, and historical connections of horse patrilines. Here, we performed fine-scaled MSY haplotype (HT) analysis in two Baroque horse breeds, the Lipizzaner and the Kladruber, both known for their long-standing tradition of sire line breeding and interconnected genealogies. We genotyped 95 MSY markers using KASP technology in 90 stallions representing all patrilines of both breeds.
View Article and Find Full Text PDFThe global spread of Oriental Horses in the past 1,500 years through the lens of the Y chromosome.
Proc Natl Acad Sci U S A
December 2024
Article Synopsis
- Horses have been shaped by human needs through selective breeding, leading to a very uniform male-specific portion of the Y chromosome (MSY) across modern breeds.
- The study analyzed 1,517 males from 189 horse breeds, revealing the significant influence of Oriental stallions, especially Arabian and English Thoroughbred, over the past few centuries.
- Additionally, the research uncovered two major historical waves of horse dissemination, including the "Spanish influence" from the Iberian Peninsula and the spread during the Ottoman Empire's expansion, highlighting the complex ancestry of modern horses.
In this study, a flash pyrolysis process is developed using an entrained flow reactor for recycling of waste tires. The flash pyrolysis system is tested for process stability and reproducibility of the products under similar operating conditions when operated continuously. The study is performed with two different feedstock materials, i.
View Article and Find Full Text PDFArticle Synopsis
- The growing demand for eco-friendly and diverse pig feeding systems highlights the importance of rearing and conserving local pig breeds, like the Livni pig, which is well-adapted to Russia's environment.
- A study analyzed the genetic diversity of Livni pigs using SNP data from different populations and compared it to commercial breeds like Landrace and Large White.
- Results showed that Livni pigs have higher genetic diversity, lower inbreeding, and a unique population structure, indicating less selection pressure compared to mainstream commercial breeds.
Article Synopsis
- - Horses transformed human mobility, but the timeline of their domestication and integration as transport is debated, with new genetic data being used to clarify this history.
- - Analysis of 475 ancient horse genomes indicates that modern domestic horses were shaped by human intervention around 2200 BCE, after a domestication bottleneck began around 2700 BCE, leading to a significant expansion across Eurasia.
- - Evidence also suggests that there was early horse husbandry in central Asia at Botai around 3500 BCE, prior to the establishment of contemporary horse bloodlines, challenging the notion of large herds being linked to migrations around 3000 BCE.