Results 151 to 160 of about 2,299,084 (348)

Immunoregulatory Roles of Tumor‐Originated Pericytes Identified by Single‐Cell Analysis in Glioblastoma

open access: yesAdvanced Science, EarlyView.
The origin and functional heterogeneity of pericytes in glioblastoma (GBM) remain unclear. This study identifies tumor‐originated pericytes (T‐PCs) and normal‐originated pericytes as two distinctive populations in human GBM using single‐cell RNA‐sequencing.
Cuiying Chu   +16 more
wiley   +1 more source

Sex chromosomes in willows [PDF]

open access: yes, 2016
Sexual reproduction is found in most eukaryotes and has in the majority of animal species led to the evolution of separate sexes. In contrast, only 5-6% of all angiospersms are dioecious with female and male flowers on separate individuals. Interestingly,
Pucholt, Pascal
core  

A Set of Novel Venom Proteins Enables Parasitoid Wasps to Exploit Older Hosts and Coexist with Competitors

open access: yesAdvanced Science, EarlyView.
This study elucidates a molecular mechanism enabling species coexistence between parasitoid wasps, showing how Asobara japonica uses a set of novel venom proteins to delay host development and exploit older hosts, thereby achieving temporal niche partitioning with Leptopilina drosophilae. Abstract Interspecific competition can drive species coexistence
Junwei Zhang   +11 more
wiley   +1 more source

XX/XY Sex Chromosomes in the South American Dwarf Gecko (\u3cem\u3eGonatodes humeralis\u3c/em\u3e) [PDF]

open access: yes, 2018
Sex-specific genetic markers identified using restriction site-associated DNA sequencing, or RADseq, permits the recognition of a species’ sex chromosome system in cases where standard cytogenetic methods fail.
Gamble, Tony   +6 more
core   +1 more source

Ex Vivo Spatiotemporal Characterization of Spermatogenesis in Mouse Testicular Organoids

open access: yesAdvanced Science, EarlyView.
To date, in vitro spermatogenesis remains a challenge in reproductive medicine. In this study, Sun et al. developed a promising in vitro strategy to generate testicular organoids that enable germ cells from newborn mice to enter meiosis, complete chromosome recombination and synapsis, and develop into haploid spermatids.
Jiachen Sun   +9 more
wiley   +1 more source

Polymorphism at a Sex-Linked Transcription Cofactor in European Tree Frogs ( Hyla arborea ): Sex-Antagonistic Selection or Neutral Processes? [PDF]

open access: yes, 2018
Nascent sex chromosomes offer a unique opportunity to investigate the evolutionary fate of genes recently trapped in non-recombining segments. A house-keeping gene (MED15) was recently shown to lie on the nascent sex-chromosomes of the European tree frog
Dufresnes, Christophe   +4 more
core  

Identifying Key Questions and Challenges in Microchimerism Biology

open access: yesAdvanced Science, EarlyView.
This study identifies key unanswered questions about microchimerism, the presence of cells from one individual living in another. Experts highlight how these cells may affect health, pregnancy, and disease. This study outlines research priorities and challenges in detecting and studying these rare microchimeric cells, aiming to guide future discoveries
Kristine J. Chua   +31 more
wiley   +1 more source

Differential Divergence of Three Human Pseudoautosomal Genes and Their Mouse Homologs: Implications for Sex Chromosome Evolution [PDF]

open access: hybrid, 2001
Fernando Gianfrancesco   +9 more
openalex   +1 more source

ZW sex-chromosome evolution and contagious parthenogenesis in Artemia brine shrimp [PDF]

open access: green, 2022
Marwan Elkrewi   +10 more
openalex   +1 more source

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