Estimating admixture pedigrees of recent hybrids without a contiguous reference genome

How to infer the ancestry of an admixed individuals pedigree.

Genís Garcia-Erill📨, Kristian Hanghøj, Rasmus Heller, Carsten Wiuf, Anders Albrechtsen

Mol Ecol Resour 23(7) 2023

software website


Evaluation of population structure inferred by principal component analysis or the admixture model.

When do distances in a PCA reflex genetic ancestry? if two individuals cluster togeather does that mean they are some the same populations? Here we present a method that you can use to interpret you genetic PCA plot.

Jan van Waaij* 📨, Song Li* , Genís Garcia-Erill* , Anders Albrechtsen, Carsten Wiuf📨;

Genetics: 2023, 225(2);

software website


Fast and accurate out-of-core PCA framework for large scale biobank data.

A method for accurate PCA for large scale genetic data. Analyse millions of sites for all 500000 individuals in UKbiobank on your labtop

Zilong Li📨, Jonas Meisner, Anders Albrechtsen📨

Genome Res: 2023, 33(9);1599-1608

software website


Haplotype and population structure inference using neural networks in whole-genome sequencing data.

Using sequencing data from simulations and closely related human populations, we show that our approach is better at distinguishing closely related populations than standard admixture and principal component analysis software. We further show that HaploNet is fast and highly scalable by applying it to genotype array data of the UK Biobank. U

Jonas Meisner📨, Anders Albrechtsen

Genome Res: 2022, 32(8);1542-52

software website


Joint identification of sex and sex-linked scaffolds in non-model organisms using low depth sequencing data

Framework for joint determination of individual sex and sex-linked scaffolds for non-model organism based on depth of coverage

Nursyifa C.* ; Brüniche-Olsen A.* ; Garcia-Erill G.; Heller R.📨; Albrechtsen A.📨

Mol. Eco. res(2022)

software website


Estimation of site frequency spectra from low-coverage sequencing data using stochastic EM reduces overfitting, runtime, and memory usage

Inference of the site frequency spectrum (SFS) from low-depth sequencing data.

Rasmussen M.S.; Garcia-Erill G.; Korneliussen T.S.; Wiuf C.; Albrechtsen A.


software website


Large-scale inference of population structure in presence of missingness using PCA

PCA with rampant missingness including having samples with non overlapping data

Meisner J.; Liu S.; Huang M.; Albrechtsen A.


software website


NGSremix: A software tool for estimating pairwise relatedness between admixed individuals from next-generation sequencing data

Estimating relatedness coefficients for admixture samples with low depth sequencing. Also works for F1 and other recently admixed indivudals.

Nøhr A.K.; Hanghøj K.; Garcia-Erill G.; Li Z.; Moltke I.; Albrechtsen A.


software website


Evaluation of model fit of inferred admixture proportions

Evaluation your estimated admixture proportions. When running ADMIXTURE or NGSadmix you can evaluate the results.

Garcia-Erill G.; Albrechtsen A.

Mol. Eco. res(2020)

software website


Ancestry-specific association mapping in admixed populations

Genetic association of ancestry specific effects when you do not have information about local ancestry.

Skotte L.; Jørsboe E.; Korneliussen T.S.; Moltke I.; Albrechtsen A.

Genetic Epidemiology(2019)

software website


Allele frequency-free inference of close familial relationships from genotypes or low-depth sequencing data

KING, RO, R1, statistics for relatedness based only two individuals. No reference panel or allele frequencies needed

Waples R.K.; Albrechtsen A.; Moltke I.

Mol. Eco.(2019)

software website


Inferring population structure and admixture proportions in low-depth NGS data

PCAngsd: PCA, admixture proportions, HWE or selection scans from low depth sequencings data while accomidating population structure

Meisner J.; Albrechtsen A.


software website


FastNGSadmix: Admixture proportions and principal component analysis of a single NGS sample

Jørsboe E.; Hanghøj K.; Albrechtsen A.


software website


ANGSD: Analysis of Next Generation Sequencing Data

Software for population genetic and medical genetic analysis of low depth sequencing data.

Korneliussen T.S.; Albrechtsen A.; Nielsen R.

BMC Bioinformatics(2014)

software website


Estimating individual admixture proportions from next generation sequencing data

Skotte L.; Korneliussen T.S.; Albrechtsen A.


software website


Relatedness mapping and tracts of relatedness for genome-wide data in the presence of linkage disequilibrium

Albrechtsen A.; Korneliussen T.S.; Moltke I.; van Overseem Hansen T.; Nielsen F.C.; Nielsen R.

Genetic Epidemiology(2009)

software website