Zipping up the Synaptonemal Complex: Pathways to Homologous Chromosome Synapsis. [PDF]
BioessaysThe synaptonemal complex (SC) is a conserved protein structure that assembles between homologous chromosomes during meiosis. Here, we review pathways promoting homologous synapsis across model organisms, examining coordination with homolog pairing and recombination, spatiotemporal regulation of SC assembly, and the conserved molecular modules coupling ...
Gold AL, Kim Y.
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Cytogenetic and molecular analysis of the holocentric chromosomes of the potato aphid Macrosiphum euphorbiae (Thomas, 1878) [PDF]
Comparative Cytogenetics, 2011 Cytogenetic and molecular investigations on the holocentric chromosomes of the aphid Macrosiphum euphorbiae (Thomas, 1878) have been carried out using silver staining and C-banding (followed by chromomycin A3 and DAPI staining) in order to improve our ...
Valentina Monti +2 more
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Cryoimmobilized anther analysis reveals new ultrastructural insights into Rhynchospora (Cyperaceae) asymmetrical microsporogenesis [PDF]
Frontiers in Plant ScienceIntroductionThe Cyperaceae family is distinguished by holocentric chromosomes and a distinctive microsporogenesis process, which includes inverted meiosis, asymmetric tetrad formation, selective cell death, and the formation of pseudomonad pollen ...
Danilo M. Rocha +5 more
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European Journal of Entomology, 2009 The structure of the holocentric chromosomes of the rosy apple aphid, Dysaphis plantaginea (2n = 12), and pear-grass aphid, Melanaphis pyraria (2n = 8), was studied using C-banding, NOR, Giemsa and fluorochrome staining, and fluorescent in situ ...
Stefano Cassanelli +2 more
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Recent advances in plant kinetochore research [PDF]
Frontiers in Cell and Developmental BiologyFaithful chromosome segregation is crucial for cell division in eukaryotes, facilitated by the kinetochore, a multi-subunit protein complex that connects chromosomes to the spindle microtubules.
Elena Kozgunova, Elena Kozgunova
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Unlocking holocentric chromosomes: new perspectives from comparative and functional genomics? [PDF]
Curr Genomics, 2012 The presence of chromosomes with diffuse centromeres (holocentric chromosomes) has been reported in several taxa since more than fifty years, but a full understanding of their origin is still lacking.
Mandrioli M, Manicardi GC.
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Holocentric chromosomes: from tolerance to fragmentation to colonization of the land. [PDF]
Ann Bot, 2018 The dispersed occurrence of holocentric chromosomes across eukaryotes implies they are adaptive, but the conditions under which they confer an advantage over monocentric chromosomes remain unclear. Due to their extended kinetochore and the attachment of spindle microtubules along their entire length, holocentric chromosomes tolerate fragmentation ...
Zedek F, Bureš P.
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Unprecedented reorganization of holocentric chromosomes provides insights into the enigma of lepidopteran chromosome evolution. [PDF]
Sci Adv, 2019 Unprecedented reorganization in a butterfly genome sheds light on the enigma of holocentric chromosome evolution.
Hill J +19 more
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Chiasmatic and achiasmatic inverted meiosis of plants with holocentric chromosomes. [PDF]
Nat Commun, 2014 AbstractMeiosis is a specialized cell division in sexually reproducing organisms before gamete formation. Following DNA replication, the canonical sequence in species with monocentric chromosomes is characterized by reductional segregation of homologous chromosomes during the first and equational segregation of sister chromatids during the second ...
Cabral G +4 more
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Improved Basic Cytogenetics Challenges Holocentricity of Butterfly Chromosomes [PDF]
Cytogenetic and Genome Research, 2022 Mitotic chromosomes of butterflies, which look like dots or short filaments in most published data, are generally considered to lack localised centromeres and thus to be holokinetic. This particularity, observed in a number of other invertebrates, is associated with meiotic particularities known as “inverted meiosis,” in which the first division is ...
Bernard Dutrillaux +5 more
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