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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 ...
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 ...
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 ...
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 ...
Repetitive DNA chromosomal organization in the cricket Cycloptiloides americanus: a case of the unusual X(1)X(2)0 sex chromosome system in Orthoptera
(Springer, 2015-04-01)
A common placement for most sex chromosomes that is involved in their evolutionary histories is the accumulation of distinct classes of repetitive DNAs. Here, with the aim of understanding the poorly studied repetitive DNA ...
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 ...
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 ...
Chromosomal Mapping of Repetitive DNAs in Characidium (Teleostei, Characiformes): Genomic Organization and Diversification of ZW Sex Chromosomes
(Karger, 2015-01-01)
The speciose neotropical genus Characidium has proven to be a good model for cytogenetic exploration. Representatives of this genus often have a conserved diploid chromosome number; some species exhibit a highly differentiated ...