Results 111 to 120 of about 2,151,922 (308)

General lack of global dosage compensation in ZZ/ZW systems? Broadening the perspective with RNA-seq [PDF]

open access: yes, 2011
Background Species with heteromorphic sex chromosomes face the challenge of large-scale imbalance in gene dose. Microarray-based studies in several independent male heterogametic XX/XY systems suggest that dosage compensation mechanisms are in place to ...
Bryk, Jaroslaw,   +9 more
core   +2 more sources

A Living Multi‐Omics PDX Biobank of High‐Risk Sarcomas Reveals ecDNA‐Driven Oncogene Amplification in Osteosarcoma and Enables Preclinical Precision Oncology

open access: yesAdvanced Science, EarlyView.
A living multi‐omics sarcoma PDX biobank is enriched for high‐risk disease and preserves key patient tumor features at histopathological and molecular levels. Integrated profiling reveals ecDNA‐driven oncogene amplification in osteosarcoma and preferential retention of ecDNA during PDX evolution.
Weisong Zhao   +34 more
wiley   +1 more source

Structural Variants in the Human Genome Associated With Gut Microbiome and Blood Metabolic Traits With Potential Causal Links

open access: yesAdvanced Science, EarlyView.
Based on a multi‐omics cohort of 2002 individuals comprising high‐depth whole‐genome and metagenomic sequencing data, blood metabolites, and detailed questionnaires, we identified 138 859 high‐confidence SVs, uncovering 36 significant SV–microbiome associations and 48 SV–blood metabolite associations.
Qun Zhou   +13 more
wiley   +1 more source

EVOLUTION OF EXTREMELY COMPLICATED SEX CHROMOSOME SYSTEMS IN BLAPS (COLEOPTERA) [PDF]

open access: yes, 1974
EVOLUTION OF EXTREMELY COMPLICATED SEX CHROMOSOME SYSTEMS IN BLAPS (COLEOPTERA)EVOLUTION OF EXTREMELY COMPLICATED SEX CHROMOSOME SYSTEMS IN BLAPS ...
null Niilo Virkki
core   +1 more source

One‐Step Induction of Oogonia‐Like and Pro‐Spermatogonia‐Like Cells From Porcine Pluripotent Stem Cells

open access: yesAdvanced Science, EarlyView.
This study established a one‐step method inducing pro‐spermatogonia‐like (activating SOX17) and oogonia‐like (activating SOX17/TFAP2C) cells from porcine pgEpiSCs with a NANOS3‐tdTomato reporter. EGF activates the core PGC program and supports survival; BMP4 further induces NANOS3 and DDX4 expression; IWR1 enhances PGCLC efficiency by suppressing ...
Pengcheng He   +14 more
wiley   +1 more source

Long‐Term Expandable Periosteal Organoids Reconstruct a Functional Regenerative Niche That Support Hematopoietic Stem Cell Maintenance and Bone Repair

open access: yesAdvanced Science, EarlyView.
A robust periosteal organoid system enables long‐term expansion while preserving native cellular heterogeneity. These organoids recapitulate functional niche environments, support hematopoietic stem cell maintenance, and attenuate aging‐associated decline ex vivo.
Jia Qing   +9 more
wiley   +1 more source

Dosage compensation, the origin and the afterlife of sex chromosomes

open access: yes, 2006
Over the past 100 years Drosophila has been developed into an outstanding model system for the study of evolutionary processes. A fascinating aspect of evolution is the differentiation of sex chromosomes.
Larsson, Jan,, Meller, Victoria H
core  

Sex chromosome differentiation.

open access: yes, 2014
A. Reconstructed evolutionary path of sex chromosome differentiation in humans. Sex chromosomes originate from autosomes that acquired a sex-determining function (the Sry gene) after their split from monotremes.
Sarah P. Otto (192827)   +13 more
core   +1 more source

Gapless Complete Genome and Multi‐Omics Illuminate Immune Adaptation and Host‐Virus Interactions in a Coronavirus Reservoir

open access: yesAdvanced Science, EarlyView.
We present a complete T2T genome assembly for a key bat reservoir. Integrating population genomics, comparative genomics, transcriptomics, single‐cell omics, and functional assays, we resolve previously inaccessible genomic regions and identify evolutionary signatures associated with immune adaptation.
Yuting Wang   +15 more
wiley   +1 more source

Why are Male IQ Scores More Variable? [PDF]

open access: yes, 2009
The male female difference in the variance of quantitative traits including IQ can be accounted for by the observation of the concentration of genes involved in brain development on the X chromosome and by the mechanism of sex determination in mammals ...
Bernard Strauss, Jacob Strauss
core  

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