Results 51 to 60 of about 2,412 (170)

Conservation of HP1 and methylated H3 histones as heterochromatic epigenetic markers in the holocentric chromosomes of the cabbage moth, Mamestra brassicae (Lepidoptera)

open access: yesEuropean Journal of Entomology, 2005
The methylated H3 histone and heterochromatin protein 1 (HP1) are markers of heterochromatin in several eukaryotes possessing monocentric chromosomes. In order to confirm that these epigenetic markers of heterochromatin are evolutionary conserved, the ...
Federica BORSATTI, Mauro MANDRIOLI
doaj   +1 more source

New cytogenetic data for three species of Pentatomidae (Heteroptera): Dichelops melacanthus (Dallas, 1851), Loxa viridis (Palisot de Beauvois, 1805), and Edessa collaris (Dallas, 1851) [PDF]

open access: yesComparative Cytogenetics, 2020
In this paper, we present new cytogenetic data for three species of the family Pentatomidae: Dichelops melacanthus (Dallas, 1851), Loxa viridis (Palisot de Beauvois, 1805), and Edessa collaris (Dallas, 1851).
Jaqueline Fernanda Dionísio   +5 more
doaj   +3 more sources

Cytogenetic Analysis of the Holocentric Chromosomes of the Aphid Schizaphis Graminum [PDF]

open access: yesHereditas, 2004
Chromatin organization in the holocentric chromosomes of the aphid Schizaphis gruminum has been investigated at a cytological level after C-banding, NOR, Giemsa, DAPI and CMA, staining. C-banding technique showed the presence of numerous C bands on the two X chromosomes both in telomeric and intercalary regions, whereas autosomes show a small number of
MANDRIOLI, Mauro   +3 more
openaire   +2 more sources

Cytotaxonomic studies in the Iberian species of the genus Cuscuta (Convolvulaceae)

open access: yesAnales del Jardín Botánico de Madrid, 2002
Cuscuta is a genus of parasitic plants with great diversity in size, number and type of chromosomes. All the species included in Cuscuta subgenus Cuscuta are characterized by the holocentric chromosomes whereas they are monocentric in the species of ...
Miguel Ángel García   +1 more
doaj   +1 more source

Chromosome structure and behaviour in Bursaphelenchus xylophilus (Nematoda: Parasitaphelenchidae) germ cells and early embryo [PDF]

open access: yes, 2006
Chromosome structure and behaviour in both meiosis of the germ cells and mitosis of the embryo from fertilisation to the two-cell stage in Bursaphelenchus xylophilus were examined by DAPI staining and three-dimensional reconstruction of serial-section ...
FUTAI, Kazuyoshi   +3 more
core   +1 more source

Comportamento mitótico e meiótico de cromossomos holocêntricos &gama; irradiados de Rhynchospora pubera (Cyperaceae)

open access: yesActa Scientiarum: Biological Sciences, 2008
Para avaliar a ocorrência de cinetócoros difusos em Rhynchospora (Cyperaceae), cromossomos de R. pubera foram fragmentados ou fundidos por irradiação &gama;.
André Luís Laforga Vanzela   +1 more
doaj   +1 more source

Non-mammalian model organisms in epigenetic research : an overview [PDF]

open access: yes, 2020
Recent advances in sequencing technology and genome editing tools had an indisputably enormous impact on our understanding of complex biological pathways and their genetic and epigenetic regulation.
Baruah, Sri Kartik   +3 more
core   +2 more sources

A novel chromosome segregation mechanism during female meiosis. [PDF]

open access: yes, 2016
In a wide range of eukaryotes, chromosome segregation occurs through anaphase A, in which chromosomes move toward stationary spindle poles, anaphase B, in which chromosomes move at the same velocity as outwardly moving spindle poles, or both. In contrast,
Cortes, Daniel B   +4 more
core   +1 more source

Karyotype diversity and chromosomal organization of repetitive DNA in Tityus obscurus (Scorpiones, Buthidae)

open access: yesBMC Genetics, 2017
Background Holocentric chromosomes occur in approximately 750 species of eukaryotes. Among them, the genus Tityus (Scorpiones, Buthidae) has a labile karyotype that shows complex multivalent associations during male meiosis. Thus, taking advantage of the
Bruno Rafael Ribeiro de Almeida   +7 more
doaj   +1 more source

Analysis of heterochromatic epigenetic markers in the holocentric chromosomes of the aphid Acyrthosiphon pisum [PDF]

open access: yes, 2007
Monomethylated-K9 H3 histones (Me9H3) and heterochromatin protein 1 (HP1) are reported as heterochromatin markers in several eukaryotes possessing monocentric chromosomes.
BORSATTI, Federica, MANDRIOLI, Mauro
core   +1 more source

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