Results 101 to 110 of about 1,619,726 (301)

Sorting of chromosomes by magnetic separation [PDF]

, 1988
Chromosomes were isolated from Chinese hamster x human hybrid cell lines containing four and nine human chromosomes. Human genomic DNA was biotinylated by nick translation and used to label the human chromosomes by in situ hybridization in suspension ...
Dudin, Gertrud, Steegmayer, Ernst W., Cremer, Thomas, E. Howell, Kathryn, Vogt, Peter, Schnitzer, Haide, Cremer, Christoph, Diaz, Eduardo   +7 more
core   +1 more source

NICE: A Two‐Step Non‐Invasive Framework for Embryo cfDNA Read Enrichment and Quality Assessment

Advanced Science, EarlyView.
The non‐invasive NICE framework, built on an ensemble stacking machine learning model, prioritizes embryos by analyzing cell‐free DNA from spent culture medium. By integrating multimodal signals, including genomic and epigenetic profiles, this automated approach standardizes morphological assessment without human bias, paving the way for more precise ...
Xueya Zhou, Shu Ding, Zhenyi Zhang, Qiaoling Shangguan, Jie Qiao, Peijie Zhou, Yidong Chen   +6 more
wiley   +1 more source

Monotreme sex chromosomes – implications for the evolution of amniote sex chromosomes

Reproduction, Fertility and Development, 2009
In vertebrates, a highly conserved pathway of genetic events controls male and female development, to the extent that many genes involved in human sex determination are also involved in fish sex determination. Surprisingly, the master switch to this pathway, which intuitively could be considered the most critical step, is inconsistent between ...
Waters, Paul, Graves, Jennifer
openaire   +3 more sources

Ecology and the evolution of sex chromosomes

Journal of Evolutionary Biology, 2021
AbstractSex chromosomes are common features of animal genomes, often carrying a sex determination gene responsible for initiating the development of sexually dimorphic traits. The specific chromosome that serves as the sex chromosome differs across taxa as a result of fusions between sex chromosomes and autosomes, along with sex chromosome turnover ...
openaire   +4 more sources

Sex reversal: a fountain of youth for sex chromosomes?

, 2009
Nonrecombining Y chromosomes are expected to degenerate through the progressive accumulation of deleterious mutations. In lower vertebrates, however, most species display homomorphic sex chromosomes.
Perrin, N., Perrin N
core   +1 more source

Optimized Cas9‐Enriched Nanopore Sequencing and Analysis Workflow for Clinical Diagnosis of Repeat Expansion Disorders

Advanced Science, EarlyView.
An optimized Cas9‐enriched nanopore sequencing workflow, combined with STRiker, enables simultaneous analysis of disease‐associated STR loci from patient blood. The nCATS–STRiker workflow detects repeat expansions, de novo repeat motifs, interruption patterns, and methylation in a single assay, improving the genetic diagnosis of previously undiagnosed ...
Seungbok Lee, Chanju Jung, Minjeong Kim, Narae Kim, Gue‐Ho Hwang, Soon‐Tae Lee, Kon Chu, Sang Kun Lee, Han‐Joon Kim, Jong‐Hee Chae, Sangsu Bae, Jangsup Moon   +11 more
wiley   +1 more source

TECTB Variants Reveal Tectorial Membrane Vulnerability in Dominant Non‐Syndromic Hearing Loss

Advanced Science, EarlyView.
TECTB is a non‐collagenous protein of the tectorial membrane – an extracellular matrix of the cochlea. This study identifies dominant missense variants in TECTB linked to human hereditary deafness in two unrelated families. Genetically engineered mice homozygous for one of the variants are profoundly deaf, whereas heterozygous mice have normal hearing ...
Evan B. Hale, Barbara Vona, Richard J. Goodyear, Richard T. Osgood, Jun Shen, Sami S. Amr, Karen Mojica, Michaela A. H. Hofrichter, Jörg Schröder, Sophie Flandin, Paul Gratias, Ricardo Vera‐Monroy, Katherine Callahan, Kerry L. Gudlewski, Rolen Quadros, Masato Ohtsuka, JoAnn McGee, Edward J. Walsh, Cynthia C. Morton, Thomas Haaf, Channabasavaiah Gurumurthy, James E. Saunders, Guy P. Richardson, Artur A. Indzhykulian   +23 more
wiley   +1 more source

Repeated sex chromosome evolution in vertebrates supported by expanded avian sex chromosomes

, 2019
Sex chromosomes have evolved from the same autosomes multiple times across vertebrates, suggesting that selection for recombination suppression has acted repeatedly and independently on certain genetic backgrounds.
Chauhan, Pallavi, Hansson, Bengt, Brooke, M. de L., Dierickx, Elisa, Ponnikas, Suvi, Sigeman, Hanna, Chauhan, Pallavi,, Dierickx, Elisa,, Hansson, Bengt,, Brooke, M. de L.,, Ponnikas, Suvi,, Sigeman, Hanna,, Lund University.   +12 more
core   +2 more sources

Dynamics of a sex-linked deleterious mutation in populations subject to sex reversal.

PLoS ONE, 2011
The heterogametic sex chromosomes (i.e. mammalian Y and avian W) do not usually recombine with the homogametic sex chromosomes which is known to lead into rapid degeneration of Y and W due to accumulation of deleterious mutations. On the other hand, some
Markku Karhunen
doaj   +1 more source

Plant sex determination and sex chromosomes [PDF]

Heredity, 2002
Sex determination systems in plants have evolved many times from hermaphroditic ancestors (including monoecious plants with separate male and female flowers on the same individual), and sex chromosome systems have arisen several times in flowering plant evolution.
openaire   +2 more sources