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Repetitive DNAs in Melipona scutellaris (Hymenoptera: Apidae: Meliponidae): chromosomal distribution and test of multiple heterochromatin amplification in the genus
(2018-08-01)
Melipona bees are remarkable due to the high contrast in heterochromatin amounts, making this group interesting for studying repetitive DNA amplification. Here, we performed the first efforts for the chromosomal localization ...
The Role of Satellite DNAs in Genome Architecture and Sex Chromosome Evolution in Crambidae Moths
(2021-03-30)
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 ...
Karyotypes and Repetitive DNA Evolution in Six Species of the Genus Mahanarva (Auchenorrhyncha: Cercopidae)
(2016-12-01)
Insects of the Cercopidae family are widely distributed and comprise 59 genera and 431 species in the New World. They are xylemophagous, causing losses in agricultural and pasture grasses, and are considered as emerging ...
Contrasting the chromosomal organization of repetitive DNAs in two Gryllidae crickets with highly divergent karyotypes
(2015-12-01)
A large percentage of eukaryotic genomes consist of repetitive DNA that plays an important role in the organization, size and evolution. In the case of crickets, chromosomal variability has been found using classical ...
Estudos citogenéticos em espécies da família Paradontidae (Actinopterygii: Characiformes), com enfoque no papel dos DNAs repetitivos na evolução cariotípica do grupo
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Genética Evolutiva e Biologia Molecular - PPGGEvCâmpus São Carlos, 2016-07-01)
Parodontidae is organized in three genera according to their morphological
characteristics: Parodon, Saccodon and Apareiodon. The diploid number is conserved
in this group with 2n=54 chromosomes, with species without ...
Caracterização cromossômica de Diatraea saccharalis (Crambidae, Lepidoptera) com ênfase nos cromossomos sexuais e DNAs repetitivos
(Universidade Estadual Paulista (Unesp), 2021-11-08)
A família de mariposas Crambidae incluem representantes que causam prejuízos econômicos às lavouras agrícolas, como a broca da cana-de-açúcar Diatraea saccharalis. Embora espécies de Crambidae apresentem extensa radiação ...
Estrutura e evolução cariotípica em espécies da infraordem Cicadomorpha (Hemiptera: Auchenorrhyncha) baseadas na análise de DNAs repetitivos
(Universidade Estadual Paulista (Unesp), 2017-12-15)
Os hemipteros da infraordem Cicadomorpha são representados por aproximadamente 30.000 espécies de insetos sugadores distribuídos mundialmente. Apesar de se destacarem por causarem muitos prejuízos na agricultura e pecuária ...
Identificação de novo e citogenômica comparativa de DNAs satélites em espécies de Drosophila dos grupos virilis e montium
(Universidade Federal de Minas GeraisBrasilICB - INSTITUTO DE CIÊNCIAS BIOLOGICASPrograma de Pós-Graduação em GenéticaUFMG, 2021-08-20)
Repetitive DNAs are the most abundant components of the eukaryotic genomes and can
be classified as dispersed, as in the case of transposable elements (TEs), or in tandem,
as in the case of microsatellites, minisatellites ...
Analysis of Holhymenia histrio genome provides insight into the satDNA evolution in an insect with holocentric chromosomes
(2020-12-01)
Satellite DNAs (satDNA) are fast-evolving repetitive sequences organized in large tandem arrays, with characteristic enrichment in heterochromatin. Knowledge about evolutionary dynamics of this genome fraction is mostly ...