Results 101 to 110 of about 841,598 (254)

Comparative Chromosome Painting in Carnivora and Pholidota [PDF]

Cytogenetic and Genome Research, 2012
The order of Carnivora has been very well characterized with over 50 species analyzed by chromosome painting and with painting probe sets made for 9 Carnivora species. Representatives of almost all families have been studied with few exceptions (Otariidae, Odobenidae, Nandiniidae, Prionodontidae).
Polina L. Perelman, Wenhui Nie, Viatcheslav V. Rozhnov, T.N. Petrina, Dmitry V. Yudkin, Alexander S. Graphodatsky, Violetta R. Beklemisheva   +6 more
openaire   +3 more sources

Cross-species chromosome painting tracks the independent origin of multiple sex chromosomes in two cofamiliar Erythrinidae fishes

BMC Evolutionary Biology, 2011
Background The Erythrinidae fish family is characterized by a large variation with respect to diploid chromosome numbers and sex-determining systems among its species, including two multiple X1X2Y sex systems in Hoplias malabaricus and Erythrinus ...
Trifonov Vladimir, Liehr Thomas, Kosyakova Nadezda, Marchal Juan A, Sánchez Antonio, Cioffi Marcelo B, Bertollo Luiz AC   +6 more
doaj   +1 more source

Intra-Chromosomal Potentials from Nucleosomal Positioning Data [PDF]

arXiv, 2021
No systematic method exists to derive intra-chromosomal potentials between nucleosomes along a chromosome consistently across a given genome. Such potentials can yield information on nucleosomal ordering, thermal as well as mechanical properties of chromosomes.
arxiv  

A Robust Framework of Chromosome Straightening with ViT-Patch GAN [PDF]

arXiv, 2022
Chromosomes carry the genetic information of humans. They exhibit non-rigid and non-articulated nature with varying degrees of curvature. Chromosome straightening is an important step for subsequent karyotype construction, pathological diagnosis and cytogenetic map development.
arxiv  

Resolving the degree of order in the bacterial chromosome using a statistical physics approach [PDF]

arXiv, 2020
While bacterial chromosomes were long thought to be amorphous, recent experiments reveal pronounced organizational features. However, the extent of bacterial chromosome organization remains unclear. Here, we develop a fully data-driven maximum entropy approach to extract the distribution of single-cell chromosome conformations from experimental ...
arxiv  

Using Orientation to Distinguish Overlapping Chromosomes [PDF]

arXiv, 2022
A difficult step in the process of karyotyping is segmenting chromosomes that touch or overlap. In an attempt to automate the process, previous studies turned to Deep Learning methods, with some formulating the task as a semantic segmentation problem. These models treat separate chromosome instances as semantic classes, which we show to be problematic,
arxiv  

Chromosomal Structural Abnormality Diagnosis by Homologous Similarity [PDF]

Pathogenic chromosome abnormalities are very common among the general population. While numerical chromosome abnormalities can be quickly and precisely detected, structural chromosome abnormalities are far more complex and typically require considerable efforts by human experts for identification.
arxiv   +1 more source

AutoKary2022: A Large-Scale Densely Annotated Dataset for Chromosome Instance Segmentation [PDF]

arXiv, 2023
Automated chromosome instance segmentation from metaphase cell microscopic images is critical for the diagnosis of chromosomal disorders (i.e., karyotype analysis). However, it is still a challenging task due to lacking of densely annotated datasets and the complicated morphologies of chromosomes, e.g., dense distribution, arbitrary orientations, and ...
arxiv  

Interphase chromosome positioning in in vitro porcine cells and ex vivo porcine tissues [PDF]

, 2012
Copyright @ 2012 The Authors. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and 85 reproduction in any medium, provided the original author and source
A Bolzer, A Fiebig, BM Skinner, C Federico, CK Lee, D Koehler, Darren K Griffin, DJ Prockop, FA Habermann, FH Gage, G Rettenberger, GA Rohrer, GM Cooper, H Ellegren, H Tanabe, H Tanabe, H Telenius, H Telenius, HA Foster, HA Foster, HA McQueen, HB Sun, Helen A Foster, I Szczerbal, IS Mehta, IS Mehta, J Ferreira, JA Croft, JM Bridger, JM Bridger, JM Craig, JM Craig, Joanna M Bridger, KJ Meaburn, KJ Meaburn, KJ Meaburn, L Mora, L Parada, L Schook, LA Parada, M Cremer, M Cremer, M Ferrari, M Knight, M Kuroda, M Neusser, M Yerle-Bouissou, N Gilbert, O Alexandrova, R Mayer, S Boyle, T Cremer, T Cremer, T Misteli, WA Bickmore, Z Jiang   +55 more
core   +2 more sources

Chromosomal rearrangements and karyotype evolution in carnivores revealed by chromosome painting [PDF]

Heredity, 2011
Chromosomal evolution in carnivores has been revisited extensively using cross-species chromosome painting. Painting probes derived from flow-sorted chromosomes of the domestic dog, which has one of the most rearranged karyotypes in mammals and the highest dipoid number (2n=78) in carnivores, are a powerful tool in detecting both evolutionary intra ...
Polina L. Perelman, Fengtang Yang, Alexander S. Graphodatsky, Alongklod Tanomtong, Wenhui Nie, Ding Wang, J. Wang, Weiting Su   +7 more
openaire   +3 more sources