Julie Blommaert

ORCID: 0000-0003-1411-2313
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About
Contact & Profiles
Research Areas
  • Chromosomal and Genetic Variations
  • Genetic diversity and population structure
  • Genomics and Phylogenetic Studies
  • Evolution and Genetic Dynamics
  • Identification and Quantification in Food
  • Genetic and phenotypic traits in livestock
  • Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
  • Genetic and Environmental Crop Studies
  • Plant Reproductive Biology
  • Animal Genetics and Reproduction
  • Protist diversity and phylogeny
  • Plant and animal studies
  • Aquaculture Nutrition and Growth
  • Animal Behavior and Reproduction
  • Aquatic Invertebrate Ecology and Behavior
  • Bat Biology and Ecology Studies
  • Academic Publishing and Open Access
  • Silkworms and Sericulture Research
  • Gene expression and cancer classification
  • Genetics and Plant Breeding
  • Viral Infections and Vectors
  • Insect and Arachnid Ecology and Behavior
  • thermodynamics and calorimetric analyses
  • Hemiptera Insect Studies
  • interferon and immune responses

Plant & Food Research
2022-2024

Uppsala University
2020-2023

Science for Life Laboratory
2022-2023

Universität Innsbruck
2019-2022

University of Otago
2015

Genome size (GS) variation is a fundamental biological characteristic; however, its evolutionary causes and consequences are the topic of ongoing debate. Whether GS neutral trait or one subject to selective pressures, how strong these pressures are, may remain open questions. Fundamentally, genomic sequences responsible for this directly impact potential outcomes and, equally, targets different pressures. For example, duplications deletions genic regions (large small) can have immediate...

10.1098/rspb.2020.1441 article EN Proceedings of the Royal Society B Biological Sciences 2020-08-26

It is a broadly observed pattern that the non-recombining regions of sex-limited chromosomes (Y and W) accumulate more repeats than rest genome, even in species like birds with low genome-wide repeat content. Here, we show highly heteromorphic sex chromosomes, W chromosome has transposable element (TE) density greater 55% compared to less 10%, contains over half all full-length (thus potentially active) endogenous retroviruses (ERVs) entire genome. Using RNA-seq protein mass spectrometry...

10.1098/rstb.2020.0186 article EN cc-by Philosophical Transactions of the Royal Society B Biological Sciences 2021-07-25

Abstract Background The Australian black swan ( Cygnus atratus ) is an iconic species with contrasting plumage to that of the closely related northern hemisphere white swans. relative geographic isolation may have resulted in a limited immune repertoire and increased susceptibility infectious diseases, notably diseases from which Australia has been largely shielded. Unlike mallard ducks mute olor ), extremely sensitive highly pathogenic avian influenza. Understanding this impaired by absence...

10.1186/s13059-022-02838-0 article EN cc-by Genome biology 2023-01-23

The causes and consequences of genome size variation across Eukaryotes, which spans five orders magnitude, have been hotly debated since before the advent sequencing. Previous studies mostly examined among larger taxonomic units (e.g., orders, or genera), while comparisons closely related species are rare. Rotifers Brachionus plicatilis complex exhibit a seven-fold in thus represent unique opportunity to study such changes on relatively short evolutionary timescale. Here, we sequenced...

10.1186/s12864-019-5859-y article EN cc-by BMC Genomics 2019-06-07

Even before genome sequencing, genetic resources have supported species management and breeding programs. Current technologies, such as long-read resolve complex genomic regions, like those rich in repeats or high GC content. Improved contiguity enhances accuracy identifying structural variants (SVs) transposable elements (TEs). We present an improved assembly SV catalogue for the Australasian snapper (Chrysophrys auratus). The new is more contiguous, allowing putative identification of 14...

10.1016/j.ygeno.2024.110929 article EN cc-by-nc Genomics 2024-08-29

Abstract Background Eukaryotic genomes are known to display an enormous variation in size, but the evolutionary causes of this phenomenon still poorly understood. To obtain mechanistic insights into such variation, previous studies have often employed comparative genomics approaches involving closely related species or geographically isolated populations within a species. Genome comparisons among individuals same population remained so far understudied—despite their great potential providing...

10.1186/s12915-021-01134-w article EN cc-by BMC Biology 2021-09-16

Summary It is a broadly observed pattern that the non-recombining regions of sex-limited chromosomes (Y and W) accumulate more repeats than rest genome, even in species like birds with low genome-wide repeat content. Here we show highly heteromorphic sex chromosomes, W chromosome has transposable element (TE) density >55% compared to <10%, contains over half all full-length (thus potentially active) endogenous retroviruses (ERVs) entire genome. Using RNA-seq protein mass spectrometry...

10.1101/2020.07.31.230854 preprint EN cc-by-nd bioRxiv (Cold Spring Harbor Laboratory) 2020-07-31

Abstract Background: The causes and consequences of genome size variation across Eukaryotes, which spans five orders magnitude, have been hotly debated since before the advent sequencing. Previous studies mostly examined among larger taxonomic units (e.g., orders, or genera), while comparisons closely related species are rare. Rotifers Brachionus plicatilis complex exhibit a seven-fold in thus represent unique opportunity to study such changes on relatively short evolutionary timescale....

10.21203/rs.2.9135/v2 preprint EN cc-by Research Square (Research Square) 2019-05-21

ABSTRACT The Australian black swan ( Cygnus atratus ) is an iconic species with contrasting plumage to that of the closely related Northern Hemisphere white swans. relative geographic isolation may have resulted in a limited immune repertoire and increased susceptibility infectious disease, notably diseases from which Australia has been largely shielded. Indeed, unlike Mallard ducks mute olor ), extremely sensitive severe highly pathogenic avian influenza (HPAI). Understanding this impaired...

10.1101/2022.05.02.490350 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2022-05-03

Abstract Eukaryotic genomes vary greatly in size due to variation the proportion of non-coding DNA, a pattern that emerges both comparisons at larger taxonomic scale and level individuals within species. The rotifer Brachionus asplanchnoidis represents one most extreme cases intraspecific genome among Eukaryotes, displaying almost 2-fold geographic population. Here we used whole-genome sequencing approach identify underlying DNA sequence differences by assembling high-quality reference draft...

10.1101/2021.03.09.434534 preprint EN cc-by-nd bioRxiv (Cold Spring Harbor Laboratory) 2021-03-10

Abstract Background The causes and consequences of genome size variation across Eukaryotes, which spans five orders magnitude, have been hotly debated since before the advent sequencing. Previous studies mostly examined among larger taxonomic units (e.g., orders, or genera), while comparisons closely related species are rare. Rotifers Brachionus plicatilis complex exhibit a seven-fold in thus represent unique opportunity to study such changes on relatively short evolutionary timescale. Here,...

10.21203/rs.2.9135/v1 preprint EN cc-by Research Square (Research Square) 2019-04-12

Abstract Background: The causes and consequences of genome size variation across Eukaryotes, which spans five orders magnitude, have been hotly debated since before the advent sequencing. Previous studies mostly examined among larger taxonomic units (e.g., orders, or genera), while comparisons closely related species are rare. Rotifers Brachionus plicatilis complex exhibit a seven-fold in thus represent unique opportunity to study such changes on relatively short evolutionary timescale....

10.21203/rs.2.9135/v3 preprint EN cc-by Research Square (Research Square) 2019-06-05

Preprints are research articles shared in the public domain before formal publication an academic journal. They housed online repositories known as preprint servers, largest and most well-established of which include arXiv (physical sciences), bioRxiv (biological SSRN (social Research Square (multidisciplinary). In early 2020, servers had to adjust huge volumes pandemic-related submissions. Many services adjusted their approach screening imposed new restrictions on type content they would...

10.31219/osf.io/vwtc4 preprint EN 2022-07-29

Abstract Intraspecific genome size (GS) variation in Eukaryotes is often mediated by additional, nonessential genomic elements. Physically, such additional elements may be represented supernumerary (B-)chromosomes or large heterozygous insertions into the regular chromosome set. Here we analyze meiotic transmission patterns of Megabase-sized, independently segregating (ISEs) Brachionus asplanchnoidis , a planktonic rotifer that displays an up to two-fold intraspecific GS due and number these...

10.1038/s41598-022-25566-8 article EN cc-by Scientific Reports 2022-12-03

The COVID-19 pandemic transformed the practice of preprinting from a niche activity in life sciences to mainstream one, encouraged by large funders and publishers alike. In early 2020, preprint servers had adjust huge volumes pandemic-related research being produced submitted new challenges these outputs introduced. Like all servers, Research Square was inundated with submissions during months become more vigilant its approach screening them. From this experience, we have learned lot about...

10.14293/s2199-ssp-am22-0002 preprint EN cc-by 2022-06-01
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