Results 51 to 60 of about 98,497 (305)

Genomic evidence reveals three W-autosome fusions in Heliconius butterflies.

PLoS Genetics
Sex chromosomes are evolutionarily labile in many animals and sometimes fuse with autosomes, creating so-called neo-sex chromosomes. Fusions between sex chromosomes and autosomes have been proposed to reduce sexual conflict and to promote adaptation and ...
Nicol Rueda-M, Carolina Pardo-Diaz, Gabriela Montejo-Kovacevich, W Owen McMillan, Krzysztof M Kozak, Carlos F Arias, Jonathan Ready, Shane McCarthy, Richard Durbin, Chris D Jiggins, Joana I Meier, Camilo Salazar   +11 more
doaj   +1 more source

Molecular-cytogenetic analysis reveals sequence differences between the sex chromosomes of Oreochromis niloticus: evidence for an early stage of sex-chromosome differentiation

, 2002
Sex determination in the Nile tilapia, Oreochromis niloticus, is primarily genetic, with XX females and XY males. A candidate sex-determining region in the terminal region of the largest chromosome pair has been identified by analysis of meiotic ...
Carrasco, L.A.P., Carrasco, L., Harvey, S., Harvey, Simon C., Bromage, Niall R., Griffin, D., Masabanda, J., Penman, David J., Penman, D., Masabanda, Julio S., Griffin, Darren K., Bromage, N.   +11 more
core   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gábor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source

Evolution of sex‐biased genes in Drosophila species with neo‐sex chromosomes: Potential contribution to reducing the sexual conflict

Ecology and Evolution
An advantage of sex chromosomes may be the potential to reduce sexual conflict because they provide a basis for selection to operate separately on females and males.
Anika Minovic, Masafumi Nozawa
doaj   +1 more source

BAZ1B is dispensable for H2AX phosphorylation on Tyrosine 142 during spermatogenesis

Biology Open, 2015
Meiosis is precisely regulated by the factors involved in DNA damage response in somatic cells. Among them, phosphorylation of H2AX on Serine 139 (γH2AX) is an essential signal for the silencing of unsynapsed sex chromosomes during male meiosis. However,
Tyler J. Broering, Yuan-Liang Wang, Ram Naresh Pandey, Rashmi S. Hegde, Shao-Chun Wang, Satoshi H. Namekawa   +5 more
doaj   +1 more source

The sex chromosomes of the aging epigenome [PDF]

, 2020
Sex chromosomes are specialized chromosomes that determine the sex of individuals. They differ from an ordinary autosome in form, size, and behavior.
Tan, Qihua; id_orcid
core   +1 more source

Clinical performance of the urine‐based TERT promoter AbsoluteQ Digital PCR for non‐invasive detection of bladder cancer

Molecular Oncology, EarlyView.
A urine‐based digital PCR assay targeting two hotspot TERT promoter variants detected bladder cancer with high sensitivity and no false positives in this case–control cohort. The streamlined AbsoluteQ workflow outperformed Sanger sequencing and supports non‐invasive molecular testing for bladder cancer detection.
Anna Nykel, Izabela Kubiak, Lena Rutkowska, Żaneta Kasprzyk, Łukasz Kępczyński, Michał Bednarek, Dariusz Sobieraj, Jacek Wilkosz, Piotr Kania, Adam Jędrzejczyk, Bogdan Kałużewski, Agnieszka Gach, Tadeusz Kałużewski   +12 more
wiley   +1 more source

Kinetic activity of the sex chromosomes of Mormidea paupercula (Heteroptera: Pentatomidae)

European Journal of Entomology, 2010
In Mormidea paupercula (n = 6 + XY in males), the presence of a CMA3-bright band in the telomeric regions on both sex chromosomes allowed the analysis of the kinetic activity of the sex univalents and XY pseudobivalent at the first and second meiotic ...
Pablo Javier REBAGLIATI, Liliana María MOLA   +1 more
doaj   +1 more source

Sex chromosomes of Nematocera [PDF]

, 2022
The paraphyletic group Nematocera is highly diversified in both body morphology and life strategies. Based on sex chromosome morphology, it can be divided into four groups defined as early as the mid- 20th century.
Ryšan, Tadeáš
core  

Sex Chromosomes and Master Sex-Determining Genes in Turtles and Other Reptiles

, 2021
International audienceAmong tetrapods, the well differentiated heteromorphic sex chromosomes of birds and mammals have been highly investigated and their master sex-determining (MSD) gene, Dmrt1 and SRY, respectively, have been identified.
Thépot, Dominique, Thepot, Dominique Thépot   +1 more
core   +1 more source