Results 61 to 70 of about 2,412 (170)
Chromosome Evolution in Cyperales [PDF]
, 2007 Karyotypic evolution is a prominent feature in the diversification of many plants and animals, yet the role that chromosomal changes play in the process of diversification is still debated.
McCubbin, Andrew G +2 more
core +3 more sources
InsectsSilkworm ovary-derived BmN4 cells rely on chromatin-induced spindle assembly to form microtubule-based square mitotic spindles that ensure accurate segregation of holocentric chromosomes during cell division.
Bing Zhang +5 more
doaj +1 more source
Chromosome numbers in the Triatominae (Hemiptera-Reduviidae): a review
Memorias do Instituto Oswaldo Cruz, 1996 The chromosome numbers of 46 out of the 122 currently recognized species of Triatominae (Hemiptera, Reduviidae) are summarized. We present the number of autosomes, the sex mechanism and the first reference for each karyotype.
Francisco Panzera +6 more
doaj +1 more source
The Role of Satellite DNAs in Genome Architecture and Sex Chromosome Evolution in Crambidae Moths
Frontiers in Genetics, 2021 Tandem repeats are important parts of eukaryotic genomes being crucial e.g., for centromere and telomere function and chromatin modulation. In Lepidoptera, knowledge of tandem repeats is very limited despite the growing number of sequenced genomes.
Diogo C. Cabral-de-Mello +6 more
doaj +1 more source
The vanishing clone: karyotypic evidence for extensive intraclonal genetic variation in the peach potato aphid, Myzus persicae (Hemiptera:Aphididae) [PDF]
, 2011 Analysis of holocentric mitotic metaphase chromosomes of the peach-potato aphid Myzus persicae (Sulzer) clone 33H revealed different chromosome numbers, ranging from 12 to 17 within each embryo, in contrast to the standard karyotype of this species (2n ...
MANDRIOLI, Mauro +3 more
core +1 more source
Molecular Ecology, 2023 AbstractGeographic isolation and chromosome evolution are two of the major drivers of diversification in eukaryotes in general, and specifically, in plants. On one hand, range shifts induced by Pleistocene glacial oscillations deeply shaped the evolutionary trajectories of species in the Northern Hemisphere.
José Ignacio Márquez‐Corro +4 more
openaire +6 more sources
Genomic and cytogenetic localization of the carotenoid genes in the aphid genome [PDF]
, 2016 Data published in the scientific literature suggests a possible link between chromosomal rearrangements involving autosomes 1 and 3 and the presence of red morphs in the peach-potato aphid Myzus persicae (Sulzer).
MANDRIOLI, Mauro +3 more
core +1 more source
Numerical variations in species exhibiting holocentric chromosomes: a nomenclatural proposal [PDF]
Caryologia, 1996 SUMMARYThis article reviews the types of numerical variation in chromosomes, with special emphasis on those organisms which have holocentric chromosomes. Terminological aspects are discussed with reference to monocentric as well as holocentric chromosomes. The term symploidy (partial or total) is proposed to include ploidy levels generated by fusion of
Modesto Luceño, Marcelo Guerra
openaire +1 more source
Characterization of Non-LTR Retrotransposable TRAS Elements in the Aphids Acyrthosiphon pisum and Myzus persicae (Aphididae, Hemiptera) [PDF]
, 2013 A non-LTR TRAS retrotransposon (identified as TRASAp1) has been amplified in the pea aphid Acyrthosiphon pisum and its presence has been assessed also in the peach potato aphid Myzus persicae.
C., Serafini +3 more
core +1 more source
European Journal of Entomology, 2004 We analysed the chromosome complement and male meiosis in a natural population of Mepraia gajardoi (Hemiptera: Reduviidae: Triatominae). The normal karyotype of this species is 20 autosomes plus X1X2Y in males and X1X1X2X2 in females. We confirmed that M.
Ruben PÉREZ +4 more
doaj +1 more source