Results 91 to 100 of about 803,632 (356)

A model system for study of sex chromosome effects on sexually dimorphic neural and behavioral traits

, 2002
We tested the hypothesis that genes encoded on the sex chromosomes play a direct role in sexual differentiation of brain and behavior. We used mice in which the testis-determining gene (Sry) was moved from the Y chromosome to an autosome (by deletion of ...
Robin Lovell-Badge, De Vries, Geert, Auger, CJ, Lovell-Badge, R, Catherine J. Auger, Elka M. Scordalakes, Swain, A, Simerly, Richard B., Lovell-Badge, Robin, Richard B. Simerly, Amanda Swain, Arnold, Arthur P., Simerly, RB, Burgoyne, PS, Scordalakes, Elka M., Emilie F. Rissman, Geert J. De Vries, Liang-Yo Yang, Burgoyne, Paul S., Yang, Liang-Yo, Yang, L-Y, Rissman, EF, Rissman, Emilie F., Paul S. Burgoyne, De Vries, G, Arnold, AP, Arthur P. Arnold, Scordalakes, EM, Swain, Amanda, Auger, Catherine J.   +29 more
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Detection of chromosome aberrations in the human interphase nucleus by visualization of specific target DNAs with radioactive and non-radioactive in situ hybridization techniques: diagnosis of trisomy 18 with probe L1.84 [PDF]

, 1986
The localization of chromosome 18 in human interphase nuclei is demonstrated by use of radioactive and nonradioactive in situ hybridization techniques with a DNA clone designated L1.84.
Pearson, P., P. Devilee, Schardin, Margit, M. Schardin, A. Brückner, Brückner, A., Cremer, Thomas, M. van der Ploeg, Landegent, J., T. Cremer, J. Landegent, Devilee, P., P. Pearson, Scholl, Hans Peter, Van Der Ploeg, Mels, Hager, H. D., H. P. Scholl, H. D. Hager   +17 more
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Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

Molecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic, Anne Nørremølle, Lilian Bomme Ousager, Lars van Brakel Andersen, Marie Louise Mølgaard Binderup, Mads Thomassen   +5 more
wiley   +1 more source

A new species in the Hieracium lycopifolium agg. (Asteraceae) from the Western Carpathians

Acta Societatis Botanicorum Poloniae, 2011
Hieracium zajacii Szeląg is described from the Vel'ká Fatra Mts in Slovakia. It is the first representative of H. lycopifolium agg. to be found in the Carpathians. The new species is tetraploid (2n = 36) and reproduces apomictically.
Zbigniew Szeląg
doaj   +1 more source

Pre‐ and postzygotic mechanisms preventing hybridization in co‐occurring species of the Impatiens purpureoviolacea complex

Ecology and Evolution, 2021
In the species‐rich genus Impatiens, few natural hybrids are known, even though closely related species often occur sympatrically. In this study, we aim to bridge the gap between micro‐ and macro‐evolution to disentangle pre‐ and postzygotic mechanisms ...
Stefan Abrahamczyk, Michaela Jandová, Zuzana Líblová, Steven B. Janssens, Tomáš Dostálek, Norbert Holstein, Eberhard Fischer   +6 more
doaj   +1 more source

Heterozygous loss‐of‐function alleles associate the conserved 3′‐5′ exoribonuclease EXOSC10 with hypersensitivity to the anticancer drug 5‐fluorouracil

Molecular Oncology, EarlyView.
EXOSC10, an essential nuclear RNA exosome‐associated 3′‐5′ exoribonuclease, is inhibited by the anticancer drug 5‐fluorouracil (5‐FU), and EXOSC10 depletion increases 5‐FU sensitivity. The colon‐cancer variant EXOSC10S402T, located in a proteolysis motif, is stable and nuclear but nonfunctional in vivo.
Radhika Sain, Yann Le Page, Frédéric Percevault, Emmanuelle Becker, Luc Negroni, Almudena Fernandez, Marta Cantero, Diego Muñoz‐Santos, Lluís Montoliu, Cyrille Garnier, Michael Primig   +10 more
wiley   +1 more source

A chromosome-based model for estimating the number of conserved segments between pairs of species from comparative genetic maps

, 2000
Comparative genetic maps of two species allow insights into the rearrangements of their genomes since divergence from a common ancestor. When the map details the positions of genes (or any set of orthologous DNA sequences) on chromosomes, syntenic blocks
Burt, D W, Waddington, D, Waddington, D., Springbett, A J, Springbett, A. J., Burt, D. W.   +5 more
core  

High chromosome variability and the presence of multivalent associations in buthid scorpions

, 2013
In this study, we investigated the mitotic and meiotic chromosomes of 11 Buthidae scorpion species, belonging to three genera (Ananteris, Rhopalurus and Tityus), to obtain detailed knowledge regarding the mechanisms underlying the intraspecific and/or ...
Mattos, Viviane Fagundes [UNESP], Schneider, Marielle Cristina, Cella, Doralice Maria, Candido, Denise Maria, Cella, Doralice Maria [UNESP], Mattos, Viviane Fagundes, Schneider, Marielle Cristina [UNIFESP], Carvalho, Leonardo Sousa   +7 more
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Transcriptional profiling of circulating extracellular vesicles from prebiopsy prostate cancer patients

Molecular Oncology, EarlyView.
RNA profiling of circulating extracellular vesicles (EVs) from blood samples of men undergoing prostate biopsy identifies transcripts associated with clinically significant prostate cancer. Integrative analysis with public tumor datasets links EV‐derived gene signatures to tumor stage and progression‐free survival, highlighting CASP3, XRCC2, and RIT1 ...
Stefan Werner, Pierre Tennstedt, Randi C. Pose, Christian Müller, Katharina Besler, Svenja Schneegans, Malik Alawi, Marie C. Roesch, Sven Peine, Desiree Bonci, Joanna Budna‐Tukan, Evi Lianidou, Catherine Alix‐Panabières, Derya Tilki, Klaus Pantel   +14 more
wiley   +1 more source

Caracterização citogenética em Anadenanthera colubrina (Vell.) Brenan (Mimosoideae) e Guazuma ulmifolia Lam. (Sterculiaceae) Cytogenetic characterization in Anadenanthera colubrina (Vell.) Brenan (Mimosoideae) and Guazuma ulmifolia Lam. (Sterculiaceae)

Acta Botânica Brasílica, 2010
Análises cariotípicas são importantes ferramentas de auxílio aos estudos de relações taxonômicas dentro dos grupos vegetais. Espécies arbóreas nativas encontradas no cerrado brasileiro têm sido pouco analisadas do ponto de vista citogenético e ...
Flavia Aparecida Ortolani, Maria Natália Guindalini Melloni, Cecília Fernanda Greggio Mariotto, José Roberto Moro   +3 more
doaj   +1 more source