Results 41 to 50 of about 199,391 (364)
Synaptonemal complex analysis of the sex bivalent in goats [PDF]
, 1994 Synaptonemal complex (SC) analysis of XY pairing in the goat (Capra hircus; 2n = 60) was investigated by electron microscopy for the first time in this species.
Amaral, MEJ, Jorge, W
core +4 more sources
Large-scale Oscillation of Structure-Related DNA Sequence Features in Human Chromosome 21 [PDF]
Physical Review E, 74:021912 (2006), 2006 Human chromosome 21 is the only chromosome in human genome that exhibits oscillation of (G+C)-content of cycle length of hundreds kilobases (500 kb near the right telomere). We aim at establishing the existence of similar periodicity in structure-related sequence features in order to relate this (G+C)% oscillation to other biological phenomena.
arxiv +1 more source
A maximum-entropy model to predict 3D structural ensembles of chromatins from pairwise distances: Applications to Interphase Chromosomes and Structural Variants [PDF]
, 2022 The principles that govern the organization of genomes, which are needed for a deeper understanding of how chromosomes are packaged and function in eukaryotic cells, could be deciphered if the three-dimensional (3D) structures are known. Recently, single-cell imaging experiments have determined the 3D coordinates of a number of loci in a chromosome ...
arxiv +1 more source
Meiotic Nuclear Oscillations Are Necessary to Avoid Excessive Chromosome Associations
Cell Reports, 2016 Pairing of homologous chromosomes is a crucial step in meiosis, which in fission yeast depends on nuclear oscillations. However, how nuclear oscillations help pairing is unknown.
Mariola R. Chacón +2 more
doaj +1 more source
Characteristics of the Kelch domain containing (KLHDC) subfamily and relationships with diseases
FEBS Letters, EarlyView.The Kelch protein superfamily includes 63 members, with the KLHDC subfamily having 10 proteins. While their functions are not fully understood, recent advances in KLHDC2's structure and role in protein degradation have highlighted its potential for drug development, especially in PROTAC therapies.
Courtney Pilcher +6 more
wiley +1 more source
Crop Journal, 2023 Autopolyploidy and allopolyploidy may represent an evolutionary advantage and are more common in plants than assumed. However, less attention has been paid to autopolyploidy than to allopolyploidy, and its evolutionary consequences are largely unclear ...
Xin Zhang +6 more
doaj
Frontiers in Plant Science, 2018 Understanding the system of a basic eukaryotic cellular mechanism like meiosis is of fundamental importance in plant biology. Moreover, it is also of great strategic interest in plant breeding since unzipping the mechanism of chromosome specificity ...
María C. Calderón +3 more
doaj +1 more source
Frontiers in Plant Science, 2022 Effective utilization of genetic diversity in wild relatives to improve wheat requires recombination between wheat and alien chromosomes. However, this is suppressed by the Pairing homoeologous gene, Ph1, on the long arm of wheat chromosome 5B.
Edina Türkösi +14 more
doaj +1 more source
Microscopes and computers combined for analysis of chromosomes [PDF]
, 1969 Scanning machine CHLOE, developed for photographic use, is combined with a digital computer to obtain quantitative and statistically significant data on chromosome shapes, distribution, density, and pairing.
Butler, J. W. +2 more
core +1 more source
Sex Chromosome Inactivation: The Importance of Pairing [PDF]
Current Biology, 2005 In mammals, the process of making sperm is marked by inactivation of sex chromosomes. Why and how does this happen? The answer apparently lies in whether a chromosome finds a pairing partner. Similar mechanisms in mold and worms reveal a surprising and recurrent theme throughout evolution.
openaire +3 more sources