Results 61 to 70 of about 7,944 (193)
Eukaryogenesis From FECA to LECA: Radical Steps Along the Way
BioEssays, Volume 47, Issue 11, November 2025.How did the last eukaryotic common ancestor (LECA) population evolve? Recent evidence shows an Asgard archaeon‐like organism acquiring a bacterium, the future mitochondrion, going from symbiosis to endosymbiosis. I postulate that almost all salient LECA characteristics could have resulted from the ensuing enhanced ATP generation and internal reactive ...
Dave Speijer
wiley +1 more source
Вавиловский журнал генетики и селекции, 2019 Chromosomal rearrangements can lead to the formation of new stable karyotypes, nevertheless changing the architectonics of the nucleus. The differences in locations might promote Robertsonian (Rb) translocations and encourage meiotic drive in favour of ...
V. G. Tambovtseva +5 more
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Mixing and Matching Chromosomes during Female Meiosis
Cells, 2020 Meiosis is a key event in the manufacturing of an oocyte. During this process, the oocyte creates a set of unique chromosomes by recombining paternal and maternal copies of homologous chromosomes, and by eliminating one set of chromosomes to become ...
Thomas Rubin +2 more
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Interplay between synaptonemal complex, homologous recombination, and centromeres during mammalian meiosis. [PDF]
PLoS Genetics, 2012 The intimate synapsis of homologous chromosome pairs (homologs) by synaptonemal complexes (SCs) is an essential feature of meiosis. In many organisms, synapsis and homologous recombination are interdependent: recombination promotes SC formation and SCs ...
Huanyu Qiao +5 more
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Evolutionary history of the mammalian synaptonemal complex [PDF]
Chromosoma, 2016 The synaptonemal complex (SC), a key structure of meiosis that assembles during prophase I, has been initially described 60 years ago. Since then, the structure has been described in many sexually reproducing organisms. However, the SC protein components were characterized in only few model organisms.
Johanna, Fraune +5 more
openaire +2 more sources
Advanced Science, Volume 12, Issue 38, October 13, 2025.As an m6A reader, hnRNPA2B1 predominantly regulates specific transcripts (e.g., Ep400, Rrs1) that are essential for chromosome organization and remodeling in an m6A‐dependent manner. Furthermore, it is demonstrated to interact with factors involved in mRNA processing and translation. This dual functionality is pivotal for ensuring the proper occurrence
Lisha Yin +11 more
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EP300‐interacting inhibitor of differentiation 3 is required for spermatogenesis in mice
Andrology, Volume 13, Issue 7, Page 1901-1912, October 2025.Abstract Background Mammalian spermatogenesis is a highly complex process of cell proliferation, meiosis, and differentiation. A series of genes are expressed in an orderly and precise manner to ensure spermatogenesis, with chromatin undergoing intricate changes throughout.
Ping Zhang +7 more
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New method for visualization of C-heterochromatin in synaptonemal complex spreads
Comparative Cytogenetics, 2013 DAPI staining of the metaphase chromosomes pretreated with barium hydroxide generates a C-like banding pattern. In this work a protocol for visualizing similar pattern at the synaptonemal complex (SC) spreads after immunostaining is suggested.
Artem Lisachov
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Molecular Ecology, Volume 34, Issue 20, October 2025.ABSTRACT The molecular basis of sex determination (SD), while being extensively studied in model organisms, remains poorly understood in many animal groups. Bivalves, a diverse class of molluscs with a variety of reproductive modes, represent an ideal yet challenging clade for investigating SD and the evolution of sexual systems.
Filippo Nicolini +4 more
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Manipulating Unisexual–Sexual Reproduction Transition to Engineer Genome‐Reconstructed Polyploids
Advanced Science, Volume 12, Issue 33, September 4, 2025.This study developed an efficient approach to generate genome‐reconstructed polyploids involving unisexual gynogenetic Carassius gibelio, sexual C. auratus, and sexual C. cuvieri. The selected superior clone inherited gynogenesis ability of C. gibelio and herpesvirus resistance of wild C.
Meng Lu +9 more
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