Results 251 to 260 of about 14,796 (289)

Synapsis in a natural autotetraploid

Genome, 1999
To test assumptions of the autotetraploid chromosome pairing model regarding events during synapsis, whole-mount spreads of synaptonemal complexes (SCs) of Machaeranthera pinnatifida (=Haplopappus spinulosus) (Asteraceae) (2n = 4x = 16) were analyzed by electron microscopy. On the assumption of one synaptic initiation per chromosome arm, each pachytene
Donald P. Hauber, Aaron Reeves, Stephen M. Stack   +2 more
openaire   +1 more source

Meiotic chromosome synapsis in a haploid yeast

Chromosoma, 1991
An extensive synaptonemal complex (SC) is found at pachytene in whole mount spread preparations of a haploid yeast, Saccharomyces cerevisiae, strain. Whereas unsynapsed axial elements are present only in a few nuclei, in others non-homologous synapsis involves virtually the whole chromosome set.
J, Loidl, K, Nairz, F, Klein
openaire   +2 more sources

Increased number of excitatory synapsis and decreased number of inhibitory synapsis in the prefrontal cortex in autism

Cerebral Cortex
Abstract Previous studies in autism spectrum disorder demonstrated an increased number of excitatory pyramidal cells and a decreased number of inhibitory parvalbumin+ chandelier interneurons in the prefrontal cortex of postmortem brains.
Gelareh, Vakilzadeh, Busisiwe C, Maseko, Trevor D, Bartely, Yingratana A, McLennan, Verónica, Martínez-Cerdeño   +4 more
openaire   +2 more sources

The E3 ubiquitin ligase DESYNAPSIS1 regulates synapsis and recombination in rice meiosis

Cell Reports, 2021
Lijun Ren, Yi Shen, Zhukuan Cheng
exaly  

Mechanisms of Chromosome Synapsis at Meiotic Prophase

1973
Publisher Summary Chromosome distribution at mitosis and meiosis in most eukaryotes is mediated by kinetochores (centromeres) and by the microtubules and spindle pole bodies of the spindle apparatus. This chapter describes the mechanisms of chromosomes synapsis at meiotic prophase. It discusses two general observations.
openaire   +2 more sources

Heterologous synapsis in C. elegans is regulated by meiotic double-strand breaks and crossovers

Chromosoma, 2021
Ofer Rog, Spencer Gordon, Hanwenheng Liu
exaly  

Synapsis

Botanical Gazette, 1911
openaire   +1 more source

Synapsis

2012
openaire   +2 more sources

Synapsis

Botanical Gazette, 1908
openaire   +1 more source

Holding it together: DNA end synapsis during non-homologous end joining

DNA Repair, 2023
Joseph J Loparo
exaly