Results 101 to 110 of about 4,675,098 (246)

WFS1 Deficiency Impairs PIAS4‐Associated SUMOylation and Increases Ubiquitin‐Mediated Spermatogenesis‐Related Protein Degradation Leading to Testicular Male Infertility

open access: yesAdvanced Science, EarlyView.
The findings establish a critical role for WFS1 in human male fertility. Mechanistically, WFS1 interacts with PIAS4 to promote the SUMOylation of key spermatogenesis‐associated proteins, which in turn competitively inhibits their K48‐linked ubiquitin‐mediated degradation during spermatogenesis.
Yunchuan Tian   +14 more
wiley   +1 more source

Comparative genomics illuminates karyotype and sex chromosome evolution of sharks

open access: yesCell Genomics
Summary: Chondrichthyes is an important lineage to reconstruct the evolutionary history of vertebrates. Here, we analyzed genome synteny for six chondrichthyan chromosome-level genomes.
Jiahong Wu   +12 more
doaj   +1 more source

Investigation into turtle sex chromosome and genome evolution [PDF]

open access: yes
This dissertation explores the complex evolutionary dynamics of sex chromosomes and genome evolution in turtles. Turtles are an ideal model for studying sex chromosome evolution due to their diverse sex determination mechanisms, including both ...
Bista, Basanta
core   +1 more source

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

NCOA4 Accelerates Abdominal Aortic Aneurysm Formation by Regulating Macrophage Activation and Ferroptosis via STAT1–CH25H Axis

open access: yesAdvanced Science, EarlyView.
Under pathological stimulation, NCOA4 in macrophages interacts with STAT1 to promote CH25H transcription. The subsequent increase in 25‐HC production activates macrophages, triggers inflammatory responses and ferroptosis, and accelerates the progression of AAA.
Zhinan Wu   +9 more
wiley   +1 more source

X chromosome inactivation during Drosophila spermatogenesis [PDF]

open access: yes, 2007
Genes with male- and testis-enriched expression are under-represented on the Drosophila melanogaster X chromosome. There is also an excess of retrotransposed genes, many of which are expressed in testis, that have “escaped” the X chromosome and moved to ...
Baines, J.   +11 more
core   +2 more sources

Structural Control of Stromal‐Immune Coupling by COL24A1 Underlies Pregnancy Maintenance

open access: yesAdvanced Science, EarlyView.
COL24A1 emerges as a collagen‐associated regulator of maternal‐fetal interface homeostasis. Its deficiency promotes a maladaptive TIMP1‐high stromal state, impaired ECM turnover, collagen accumulation, and stromal–immune dysregulation, contributing to pregnancy loss.
Teng Wu   +12 more
wiley   +1 more source

Immune Biomarkers of Islet Transplant Rejection Revealed by Synthetic Immunological Niche

open access: yesAdvanced Science, EarlyView.
A subcutaneous synthetic immunological niche (IN) enables serial, minimally invasive monitoring of immune responses after islet transplantation. Flow cytometry and transcriptomic profiling of the IN reveal immune‐cell programs associated with graft acceptance and distinct types of rejection.
Jyotirmoy Roy   +8 more
wiley   +1 more source

Evolution of gene dosage on the Z-chromosome of schistosome parasites

open access: yeseLife, 2018
XY systems usually show chromosome-wide compensation of X-linked genes, while in many ZW systems, compensation is restricted to a minority of dosage-sensitive genes. Why such differences arose is still unclear.
Marion A L Picard   +6 more
doaj   +1 more source

reveals early events of sex chromosome evolution

open access: yes, 2005
The dioecious plant species Silene latifolia has a sex determination mechanism based on an active Y chromosome. Here, we used inter-specific hybrids in the genus Silene to study the effects of gene complexes on the Y chromosome.
Ioan Negrutiu   +17 more
core   +1 more source

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