User profiles for Hanna Sigeman
 | Hanna SigemanPostdoctoral researcher, Ecology and Genetics Research Unit, University of Oulu, Oulu … Verified email at oulu.fi Cited by 737 |
Dense sampling of bird diversity increases power of comparative genomics
Whole-genome sequencing projects are increasingly populating the tree of life and
characterizing biodiversity 1 , 2 , 3 – 4 . Sparse taxon sampling has previously been proposed to …
characterizing biodiversity 1 , 2 , 3 – 4 . Sparse taxon sampling has previously been proposed to …
Why do sex chromosomes stop recombining?
It is commonly assumed that sex chromosomes evolve recombination suppression because
selection favours linkage between sex-determining and sexually antagonistic genes. …
selection favours linkage between sex-determining and sexually antagonistic genes. …
Avian neo-sex chromosomes reveal dynamics of recombination suppression and W degeneration
H Sigeman, M Strandh, E Proux-Wéra… - Molecular biology …, 2021 - academic.oup.com
How the avian sex chromosomes first evolved from autosomes remains elusive as 100
million years (My) of divergence and degeneration obscure their evolutionary history. The …
million years (My) of divergence and degeneration obscure their evolutionary history. The …
Repeated sex chromosome evolution in vertebrates supported by expanded avian sex chromosomes
Sex chromosomes have evolved from the same autosomes multiple times across vertebrates,
suggesting that selection for recombination suppression has acted repeatedly and …
suggesting that selection for recombination suppression has acted repeatedly and …
Genetic differences between willow warbler migratory phenotypes are few and cluster in large haplotype blocks
It is well established that differences in migratory behavior between populations of songbirds
have a genetic basis but the actual genes underlying these traits remains largely unknown. …
have a genetic basis but the actual genes underlying these traits remains largely unknown. …
The genomic architecture of the passerine MHC region: High repeat content and contrasting evolutionary histories of single copy and tandemly duplicated MHC genes
H Westerdahl, S Mellinger, H Sigeman… - Molecular Ecology …, 2022 - Wiley Online Library
The major histocompatibility complex (MHC) is of central importance to the immune system,
and an optimal MHC diversity is believed to maximize pathogen elimination. Birds show …
and an optimal MHC diversity is believed to maximize pathogen elimination. Birds show …
Whole-genome analysis across 10 songbird families within Sylvioidea reveals a novel autosome–sex chromosome fusion
Sex chromosomes in birds have long been considered to be extremely stable. However, this
notion has lately been challenged by findings of independent autosome–sex chromosome …
notion has lately been challenged by findings of independent autosome–sex chromosome …
[HTML][HTML] Genomic trajectories of a near-extinction event in the Chatham Island black robin
Background Understanding the micro-evolutionary response of populations to demographic
declines is a major goal in evolutionary and conservation biology. In small populations, …
declines is a major goal in evolutionary and conservation biology. In small populations, …
Contrasting results from GWAS and QTL mapping on wing length in great reed warblers
A major goal in evolutionary biology is to understand the genetic basis of adaptive traits. In
migratory birds, wing morphology is such a trait. Our previous work on the great reed warbler (…
migratory birds, wing morphology is such a trait. Our previous work on the great reed warbler (…
[HTML][HTML] FindZX: an automated pipeline for detecting and visualising sex chromosomes using whole-genome sequencing data
Background Sex chromosomes have evolved numerous times, as revealed by recent genomic
studies. However, large gaps in our knowledge of sex chromosome diversity across the …
studies. However, large gaps in our knowledge of sex chromosome diversity across the …