Results 31 to 40 of about 14,179 (253)
An evolutionary perspective enhances our understanding of biological mechanisms. Comparison of sex determination and X-chromosome dosage compensation mechanisms between the closely related nematode species Caenorhabditis briggsae (Cbr) and Caenorhabditis
Qiming Yang +6 more
doaj +1 more source
Evolution of dosage compensation under sexual selection differs between X and Z chromosomes [PDF]
Complete sex chromosome dosage compensation has more often been observed in XY than ZW species. In this study, using a population genetic model and the chicken transcriptome, we assess whether sexual conflict can account for this difference.
Mullon, C +9 more
core +1 more source
A General Mechanism for Network-Dosage Compensation in Gene Circuits [PDF]
Coping with variations in network dosage is crucial for maintaining optimal function in gene networks. We explored how network structure facilitates network-level dosage compensation.
Arnold, Frances H. +4 more
core +2 more sources
Evolution of Sex Chromosomes and Dosage Compensation in Plants
Sex chromosomes are the chromosomes involved in sex determination and are characterized by reduced recombination, specialized gene content and dosage compensation. These are also called as allosomes1.
Chandana, B. S 1*, Rajendra Kumar1, Ramachandra, V 2, Rohit Kumar Mahto 1 And Rajesh Kumar Singh1
core +1 more source
THE NATURE OF QUANTITATIVE GENETIC VARIATION IN DROSOPHILA. III. MECHANISM OF DOSAGE COMPENSATION FOR SEX-LINKED ABDOMINAL BRISTLE POLYGENES [PDF]
ABSTRACT Seventeen lines, each homozygous for a different × chromosome but all with a common autosomal genetic background, were constructed and assayed for abdominal bristle number to determine whether dosage compensation operates for sex-linked genes affecting this character.—The regression coefficient of male mean on female mean using ...
openaire +2 more sources
Dosage Compensation in Females with X-Linked Metabolic Disorders
Through the use of new genomic and metabolomic technologies, our comprehension of the molecular and biochemical etiologies of genetic disorders is rapidly expanding, and so are insights into their varying phenotypes.
Magdalena Podlacha +7 more
core +1 more source
Effects of Gene Dose, Chromatin, and Network Topology on Expression in Drosophila melanogaster.
Deletions, commonly referred to as deficiencies by Drosophila geneticists, are valuable tools for mapping genes and for genetic pathway discovery via dose-dependent suppressor and enhancer screens.
Hangnoh Lee +10 more
doaj +1 more source
Sex Bias and Maternal Contribution to Gene Expression Divergence in Drosophila Blastoderm Embryos. [PDF]
Early embryogenesis is a unique developmental stage where genetic control of development is handed off from mother to zygote. Yet the contribution of this transition to the evolution of gene expression is poorly understood.
Mathilde Paris +3 more
doaj +1 more source
Absence of a Faster-X Effect in Beetles (Tribolium, Coleoptera)
The faster-X effect, namely the rapid evolution of protein-coding genes on the X chromosome, has been widely reported in metazoans. However, the prevalence of this phenomenon across diverse systems and its potential causes remain largely unresolved ...
Carrie A. Whittle +2 more
doaj +1 more source
Theory makes several predictions concerning differences in genetic variation between the X chromosome and the autosomes due to male X hemizygosity. The X chromosome should: (i) typically show relatively less standing genetic variation than the autosomes,
Robert M. Griffin +2 more
doaj +1 more source

