Noah A. Rosenberg

Coalescent theory of the {psi} directionality index

This paper develops theoretical predictions for the directionality index in coalescent models of two populations and analyzes its behavior in Drosophila melanogaster.

Using mathematical constraints to explain narrow ranges for allele-sharing dissimilarities

The paper mathematically analyzes bounds on allele-sharing dissimilarity (ASD) statistics, showing how expected ASD values are constrained by allele frequencies, explaining narrow empirical ranges observed in human populations.

Quantifying compositional variability in microbial communities with FAVA

FAVA quantifies compositional variability across multiple microbiome samples using a normalized index, enabling comparison of taxonomic or functional relative abundances across different conditions and sample numbers.

Record-matching of STR profiles with fragmentary genomic SNP data

The paper evaluates using SNP data from poor-quality DNA to match STR profiles, showing similar accuracy to full-genome data with 5-10% coverage.

A genetic and linguistic analysis of the admixture histories of the islands of Cabo Verde

This study analyzes genetic and linguistic data from Cabo Verde to trace admixture histories, finding early European-African mixing predating the Trans-Atlantic Slave Trade and ongoing effects of socio-cultural dynamics.

Limiting distribution of X-chromosomal coalescence times under first-cousin consanguineous mating

The paper derives the limiting distribution of X-chromosomal coalescence times under first-cousin consanguineous mating, showing different effects based on consanguinity type.

Approximations to the expectations and variances of ratios of tree properties under the coalescent

The paper provides Taylor approximations for expected values and variances of ratios of tree properties under the coalescent, showing good agreement with simulations for expectations but less so for variances.

Mathematical constraints on FST: multiallelic markers in arbitrarily many populations

The paper derives mathematical constraints on FST for multiallelic markers across multiple populations and applies them to explain microsatellite differentiation patterns.

Variance and limiting distribution of coalescence times in a diploid model of a consanguineous population

The paper derives the variance and limiting distribution of coalescence times in a diploid consanguineous population model, showing scaling behavior similar to a standard coalescent.

On the heterozygosity of an admixed population

The paper derives a relationship between heterozygosity and admixture proportions in admixed populations, showing that heterozygosity is at least as high as the least heterozygous source population.

Human-Genetic Ancestry Inference and False Positives in Forensic Familial Searching

This paper demonstrates that using ancestry inference on query profiles can reduce false-positive rates in familial searching by avoiding extreme allele-frequency misspecifications.

Network-based hierarchical population structure analysis for large genomic datasets

The paper introduces a network-based method for analyzing population structure in genomic data, demonstrating its application in Arabidopsis thaliana and human populations.

Coalescent theory of migration network motifs

The paper uses coalescent theory to analyze migration network motifs and their impact on genetic diversity and differentiation in small population networks.

A Genome Scan for Genes Underlying Adult Body Size Differences between Central African Pygmies and their Non-Pygmy Neighbors

The paper identifies genetic associations with body size traits in Central African Pygmies and non-Pygmies using SNP data from a modest sample size.

Linkage disequilibrium connects genetic records of relatives typed with disjoint genomic marker sets

The paper shows linkage disequilibrium can identify relatives using nonoverlapping genetic markers, with 30-36% accuracy for parent-offspring and sib pairs.

Reply To Lazaridis And Reich: Robust Model-Based Inference Of Male-Biased Admixture During Bronze Age Migration From The Pontic-Caspian Steppe

The paper responds to criticism of male-biased admixture estimates from Bronze Age migrations by analyzing X-chromosomal and autosomal ancestry in ancient samples.

Mathematical constraints on FST: biallelic markers in arbitrarily many populations

The paper analyzes mathematical constraints on FST for multiple populations, showing how FST depends on allele frequency and subpopulation number, and applies findings to human genetic data.