Results 111 to 120 of about 1,619,726 (301)

The Evolution of Mammalian X Chromosomes and X Chromosome Inactivation

open access: yes, 2015
For many years it was thought that the X chromosome in all three major lineages of mammals (monotremes, marsupials and eutherians) had a shared evolutionary history.
Rodriguez Delgado, Claudia   +1 more
core  

Reports of sexual lability in the 22 species with well-described sex chromosomes. from Labile sex expression in angiosperm species with sex chromosomes

open access: yes, 2022
Here, we review the literature on sexual lability in dioecious angiosperm species with well-studied sex chromosomes. We distinguish three types of departures from strict dioecy, concerning either a minority of flowers in some individuals (leakiness) or ...
Sylvain Mousset (170664)   +2 more
core   +1 more source

Nrsn1–Smarcc1 Coupling Regulates Neural Stem Cell Differentiation and Chronic‐phase Recovery After Ischemic Stroke

open access: yesAdvanced Science, EarlyView.
In the post‐stroke brain, Foxa2 induces the transcriptional upregulation of Nrsn1 in NSCs. Nrsn1 functionally couples with Smarcc1, modulating its nuclear availability and protein abundance, thereby influencing Smarcc1‐associated regulatory programs linked to neuronal lineage commitment. Through this coupling, Nrsn1 promotes the differentiation of NSCs
Ruolin Zhang   +18 more
wiley   +1 more source

Turnover of sex chromosomes in the stickleback fishes (Gastrosteidae) [PDF]

open access: yes, 2009
journal articleDiverse sex-chromosome systems are found in vertebrates, particularly in teleost fishes, where different systems can be found in closely related species.
Ross, Joseph A.; Urton, James R.; Boland, Jessica; Peichel, Catherine L.   +1 more
core  

Increased Disarray of Extracellular Matrix Collagen‐I Fiber Network and Compromised Biomechanics in Aortae From Marfan‐Syndrome Mice Assessed Through Combined Opto‐Biomechatronics

open access: yesAdvanced Science, EarlyView.
Combined structure‐function assessment in aortic rings from Marfan mice using MechaMorph Opto‐Biomechatronics technology relates increased elasticity (stiffness) and dynamic viscosity and less ordered extracellular matrix 3D‐structure (collagen) as potential causes for impaired Windkessel function and compromised haemodynamics in Marfan's syndrome ...
Dominik Schneidereit   +10 more
wiley   +1 more source

Sex Chromosomes Do It Differently. [PDF]

open access: yesPLoS Biology, 2016
Lauren A Richardson
doaj   +1 more source

B Chromosomes and Sex in Animals

open access: yes, 2011
Supernumerary (B) chromosomes are dispensable elements found in many eukaryote genomes in addition to standard (A) chromosomes. In many respects, B chromosomes resemble sex chromosomes, so that a common ancestry for them has frequently been suggested ...
M. Schmid   +5 more
core   +1 more source

ERα–PADI4–CXCL8 Axis Drives MDSC‐Mediated Immune Evasion in Anaplastic Thyroid Carcinoma

open access: yesAdvanced Science, EarlyView.
MAPK‐driven ligand‐independent ERα activation drives PADI4 transcription and translation. This enzyme then modifies CXCL8 chemokines through citrullination, generating a potent chemoattractant gradient specifically for myeloid‐derived suppressor cells.
Dongdong Zhang   +5 more
wiley   +1 more source

High-throughput analysis of the satellitome revealed enormous diversity of satellite DNAs in the neo-Y chromosome of the cricket Eneoptera surinamensis

open access: yesScientific Reports, 2017
Satellite DNAs (satDNAs) constitute large portion of eukaryote genomes, comprising non-protein-coding sequences tandemly repeated. They are mostly found in heterochromatic regions of chromosomes such as around centromere or near telomeres, in intercalary
Octavio Manuel Palacios-Gimenez   +6 more
doaj   +1 more source

The role of sex chromosomes in black fly evolution

open access: yes, 1989
Sex chromosomes have been repeatedly implicated in the process of speciation of black flies and other nemotocerans. Arguments are presented here against the case that frequent differences between species in their sex chromosomes are based on (i ...
C. L. Brockhouse   +2 more
core   +1 more source

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