Results 91 to 100 of about 25,717 (206)
Rumex acetosa Y chromosomes: constitutive or facultative heterochromatin?
Condensed Y chromosomes in <i>Rumex acetosa</i> L. root-tip nuclei were studied using 5-azaC treatment and immunohistochemical detection of methylated histones. Although Y chromosomes were decondensed within root meristem in vivo, they became
Andrzej J. Joachimiak +4 more
doaj +1 more source
The environmentally responsive plant epigenome: insights from jasmonate signaling
Summary The environmental responsiveness of the plant epigenome is essential for spatiotemporally precise gene regulation, enabling plants to adapt to external cues. Elucidating the mechanisms underlying this responsiveness is therefore fundamental to deciphering the molecular logic of plant‐environment interactions.
Mark Zander, Emily Vesper
wiley +1 more source
ABSTRACT Phosphorus is indispensable in agricultural production. The growing global demand for food necessitates the development of crops with enhanced phosphorus utilisation efficiency. However, the molecular mechanisms coordinating phosphorus utilisation efficiency in plants remain incompletely characterised.
Laming Pei +6 more
wiley +1 more source
Characterization of Toxoplasma gondii subtelomeric-like regions: identification of a long-range compositional bias that is also associated with gene-poor regions [PDF]
Background Chromosome ends are composed of telomeric repeats and subtelomeric regions, which are patchworks of genes interspersed with repeated elements.
Agüero, Fernan Gonzalo +3 more
core +2 more sources
ABSTRACT Aegilops geniculata Roth is a tetraploid (MgMgUgUg; 2n = 4x = 28) wild relative of wheat and a valuable source of genetic diversity for improving agronomic traits. We present a high‐quality homoeolog‐resolved assembly and annotation of the Ae.
Ural Yunusbaev +8 more
wiley +1 more source
Background Organization of the eukaryotic genome is essential for proper function, including gene expression. In metazoans, chromatin loops and Topologically Associated Domains (TADs) organize genes into transcription factories, while chromosomes occupy ...
Andrew T. Reckard +5 more
doaj +1 more source
Karyotype evolution in progress: A new diploid number in Belostoma candidulum (Heteroptera: Belostomatidae) from Argentina leading to new insights into its ecology and evolution [PDF]
A novel chromosome complement (2n = 14 = 12 + XY/XX; male/female sex chromosomes), male meiosis behaviour, heterochromatin characterization, and frequency and distribution of chiasmata are described for the first time in specimens from a natural ...
Bressa, Maria Jose +1 more
core +1 more source
Ageing acts as a double‐edged sword in cancer. In the elderly, open chromatin, immunosenescence, and chronic inflammation drive SASP (IL‐6, MMPs), MDSC accumulation and T‐cell suppression, fostering tumor‐promoting microenvironments and limited therapeutic benefit.
Qi Wang +7 more
wiley +1 more source
DNA demethylation and heterochromatin remodelling upon heat stress [PDF]
Conversion of environmental signals into epigenetic information is thought to occur widely but has been poorly studied as yet. It is proposed that changes in the expression of molecules involved in chromatin remodelling or their modification might play a
FELICIELLO, ISIDORO +3 more
core
The X Factor in Immunity: Sex Differences Shaped by the X Chromosome
ABSTRACT There are sex differences with immune responses where females exhibit stronger immune responses compared to males. Both sex hormones and sex chromosome differences between males and females contribute to the observed sex differences with innate and adaptive immune cell composition and function.
Katherine B. Radovanovic +2 more
wiley +1 more source

