User profiles for L. Speidel

Leo Speidel

UCL and Francis Crick Institute
Verified email at ucl.ac.uk
Cited by 1044

Multi-ancestry genetic study of type 2 diabetes highlights the power of diverse populations for discovery and translation

…, LE Petty, H Kitajima, GZ Yu, S Rüeger, L Speidel… - Nature …, 2022 - nature.com
We assembled an ancestrally diverse collection of genome-wide association studies (GWAS)
of type 2 diabetes (T2D) in 180,834 affected individuals and 1,159,055 controls (48.9% non…

A method for genome-wide genealogy estimation for thousands of samples

L Speidel, M Forest, S Shi, SR Myers - Nature genetics, 2019 - nature.com
… After applying the HMM, at a focal SNP , each of the other haplotypes j therefore has some
probability \(p_{ij\ell }\) of being copied from, to generate haplotype i. After rescaling \(\log p_{…

[HTML][HTML] Grey wolf genomic history reveals a dual ancestry of dogs

…, L Girdland-Flink, DM Fernandes, M Ollivier, L Speidel… - Nature, 2022 - nature.com
The grey wolf (Canis lupus) was the first species to give rise to a domestic population, and
they remained widespread throughout the last Ice Age when many other large mammal …

Bone loss after kidney transplantation: a longitudinal study in 115 graft recipients

…, FA Mundinger, J Rasenack, L Speidel… - Nephrology Dialysis …, 1995 - academic.oup.com
Background. Bone loss is an important problem in renal transplant recipients immediately
after surgery. No data are available about the bone loss beyond the first post-transplantation …

[HTML][HTML] The selection landscape and genetic legacy of ancient Eurasians

…, T Vimala, H McColl, AH Vaughn, L Speidel… - Nature, 2024 - nature.com
The Holocene (beginning around 12,000 years ago) encompassed some of the most significant
changes in human evolution, with far-reaching consequences for the dietary, physical …

[PDF][PDF] Disentangling selection on genetically correlated polygenic traits via whole-genome genealogies

AJ Stern, L Speidel, NA Zaitlen, R Nielsen - The American Journal of …, 2021 - cell.com
We present a full-likelihood method to infer polygenic adaptation from DNA sequence variation
and GWAS summary statistics to quantify recent transient directional selection acting on …

Inferring population histories for ancient genomes using genome-wide genealogies

L Speidel, L Cassidy, RW Davies… - Molecular Biology …, 2021 - academic.oup.com
… we denote by an indicator variable S i j (⁠ indexing SNPs). We multiply … ∏ i , j P S i
j a , θ ) ⁠, where θ denotes piecewise-constant coalescence rates and a is the age of the

Trans-ancestry genetic study of type 2 diabetes highlights the power of diverse populations for discovery and translation

…, LE Petty, H Kitajima, GZ Yu, S Rüeger, L Speidel… - MedRxiv, 2020 - medrxiv.org
We assembled an ancestrally diverse collection of genome-wide association studies of type
2 diabetes (T2D) in 180,834 cases and 1,159,055 controls (48.9% non-European descent). …

[HTML][HTML] Detection of chromosomal aneuploidy in ancient genomes

K Anastasiadou, M Silva, T Booth, L Speidel… - Communications …, 2024 - nature.com
Ancient DNA is a valuable tool for investigating genetic and evolutionary history that can
also provide detailed profiles of the lives of ancient individuals. In this study, we develop a …

Balancing selection on genomic deletion polymorphisms in humans

A Aqil, L Speidel, P Pavlidis, O Gokcumen - Elife, 2023 - elifesciences.org
A key question in biology is why genomic variation persists in a population for extended
periods. Recent studies have identified examples of genomic deletions that have remained …