Results 71 to 80 of about 72,919 (193)

Complex Evolutionary History of the Y Chromosome in Flies of the Drosophila obscura Species Group. [PDF]

, 2020
The Drosophila obscura species group shows dramatic variation in karyotype, including transitions among sex chromosomes. Members of the affinis and pseudoobscura subgroups contain a neo-X chromosome (a fusion of the X with an autosome), and ancestral Y ...
Bachtrog, Doris, Bracewell, Ryan
core  

Dosage Sensing, Threshold Responses, and Epigenetic Memory: A Systems Biology Perspective on Random X‐Chromosome Inactivation

, 2020
X‐chromosome inactivation ensures dosage compensation between the sexes in mammals by randomly choosing one out of the two X chromosomes in females for inactivation.
Mutzel, V., Schulz, E.
core   +1 more source

Functional characteristics of a double positive feedback loop coupled with autorepression [PDF]

, 2008
We study the functional characteristics of a two-gene motif consisting of a double positive feedback loop and an autoregulatory negative feedback loop.
Banerjee, Subhasis, Bose, Indrani
core   +2 more sources

Chromosomal control of wheat endosperm proteins. A critical review. [PDF]

, 1977
Progress made in the chromosomal location of structural genes for wheat endosperm proteins, and in the study of the regulation and quantitative expression of these genes, by using aneuploids and by related techniques, is critically evaluated ...
Aragoncillo Ballesteros, Cipriano, Carbonero Zalduegui, Pilar, García Olmedo, Francisco, Salcedo Duran, Gabriel   +3 more
core   +2 more sources

Biochemical evidence of chromosome homoeology among related plant genera. [PDF]

, 1975
Biochemical markers associated with homoelogous chromosome groups 3 and 7 of Triticum aestivum L. have been investigated in genetic stocks carrying chromosomes or chromosomal segments of the same homoeology groups from Agropyron elongatum and Secale ...
Aragoncillo, Aragoncillo, Barber, García-Olmedo, García-Olmedo, García-Olmedo, Gupta, Johnson, Johnson, Quinn, Redman, Riley, Rodríguez-Loperena, Rodríguez-Loperena, Sears, Sears, Sears, Shepherd, Torres   +18 more
core   +2 more sources

Evolution of Sex Chromosome Dosage Compensation in Animals: A Beautiful Theory, Undermined by Facts and Bedeviled by Details [PDF]

, 2018
Many animals with genetic sex determination harbor heteromorphic sex chromosomes, where the heterogametic sex has half the gene dose of the homogametic sex.
Ahola, Albritton, Alekseyenko, Allen, Bachtrog, Bachtrog, Bachtrog, Baker, Birchler, Birchler, Birchler, Bullard, Carey, Castagné, Chandler, Charlesworth, Charlesworth, Charlesworth, Charlesworth, Chen, Chen, Chen, Conesa, Connallon, Deakin, Deng, Deng, Disteche, Disteche, Ellegren, Ellegren, Engelstädter, Ercan, Faucillion, Ferrari, Fukui, Gartler, George, Grath, Graves, Gu, Guioli, Gupta, Haig, Hardcastle, Harrison, Hart, He, Heliconius Genome Consortium, Hurst, Huylmans, Itoh, Itoh, James R Walters, Jiang, Jue, Julien, Ka, Kateryna Makova, Kelly, Kharchenko, Kiuchi, Kuroda, Lin, Linger, Liuqi Gu, Livernois, Lucchesi, Mahajan, Malone, Mank, Mank, Mank, Mank, Mank, Marioni, Martin, Marín, Marín, Meiklejohn, Meisel, Meller, Mikhaylova, Mullon, Muyle, Muyle, Naurin, Nguyen, Nguyen, Nozawa, Ohno, Oshlack, Pal, Park, Parsch, Pease, Pessia, Pessia, Pferdehirt, Prince, Rens, Rice, Rice, Rice, Robinson, Rose, Schoenmakers, Schultheiß, Smith, Steinemann, Stenberg, Straub, Sugimoto, Sugimoto, Toups, Turner, Uebbing, Uebbing, Veitia, Veitia, Veyrunes, Vibranovski, Vicoso, Vicoso, Vicoso, Vicoso, Vicoso, Vicoso, Walters, Walters, Werren, Wheeler, White, Whitworth, Wilkinson, Wilson Sayres, Wolf, Xiong, Yildirim, Zha, Zhang, Zhou, Zimmer   +142 more
core   +1 more source

Faced with inequality: chicken do not have a general dosage compensation of sex-linked genes

BMC Biology, 2007
Background The contrasting dose of sex chromosomes in males and females potentially introduces a large-scale imbalance in levels of gene expression between sexes, and between sex chromosomes and autosomes.
Kultima Kim, Dencker Lennart, Brunström Björn, Hultin-Rosenberg Lina, Ellegren Hans, Scholz Birger   +5 more
doaj   +1 more source

The choice of the filtering method in microarrays affects the inference regarding dosage compensation of the active X-chromosome.

PLoS ONE, 2011
BackgroundThe hypothesis of dosage compensation of genes of the X chromosome, supported by previous microarray studies, was recently challenged by RNA-sequencing data.
Raphaële Castagné, Maxime Rotival, Tanja Zeller, Philipp S Wild, Vinh Truong, David-Alexandre Trégouët, Thomas Munzel, Andreas Ziegler, François Cambien, Stefan Blankenberg, Laurence Tiret   +10 more
doaj   +1 more source

Dosage Compensation of the X Chromosomes in Bovine Germline, Early Embryos, and Somatic Tissues [PDF]

, 2018
Dosage compensation of the mammalian X chromosome (X) was proposed by Susumu Ohno as a mechanism wherein the inactivation of one X in females would lead to doubling the expression of the other.
Dong, Hong, Duan, Jingyue (Ellie), Jiang, Zongliang, Jue, Nathaniel K., Kuo, Lynn, O’Neill, Rachel, Shi, Wei, Tian, Xiuchun (Cindy), Wolf, Eckhard, Zheng, Xinbao   +9 more
core   +1 more source

No current evidence for widespread dosage compensation in S. cerevisiae

eLife, 2016
Previous studies of laboratory strains of budding yeast had shown that when gene copy number is altered experimentally, RNA levels generally scale accordingly. This is true when the copy number of individual genes or entire chromosomes is altered.
Eduardo M Torres, Michael Springer, Angelika Amon   +2 more
doaj   +1 more source