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Cytogenetic studies of three species of Glandulocaudinae (Pisces, Characiformes, Characidae)
(1995-01-01)
Cytogenetic studies of three species of the subfamily Glandulocaudinae showed that Mimagoniates microlepis presents 2n = 52 chromosomes (6M + 20SM + 18ST + 8A), Mimagoniates lateralis presents 2n = 52 chromosomes (6M + ...
Comparative cytogenetics of eight species of Cycloramphus (Anura, Cycloramphidae)
(Elsevier Gmbh, Urban & Fischer Verlag, 2011-01-01)
Several aspects of the biology of Cycloramphus species of the Atlantic Forest are still poorly known, which makes it difficult to understand their historical relationships. Therefore, we were stimulated to promote a ...
OCCURRENCE OF MACRO-B CHROMOSOMES IN ASTYANAX-SCABRIPINNIS PARANAE (PISCES, CHARACIFORMES, CHARACIDAE)
(Kluwer Academic Publ, 1992-01-01)
B chromosomes occur in several Neotropical fish species. Cytogenetic analysis of 27 specimens (15 females and 12 males) of Astyanax scabripinnis paranae from the Araqua river (a small headwater tributary of the Tiete river) ...
Chromosome Evolution in African Cichlid Fish: Contributions from the Physical Mapping of Repeated DNAs
(Karger, 2010-01-01)
Cichlid fishes have been the subject of increasing scientific interest because of their rapid adaptive radiation that has led to extensive ecological diversity and because of their enormous importance to tropical and ...
Molecular phylogenetics provides a novel hypothesis of chromosome evolution in Neotropical fishes of the genus Potamorhina (Teleostei, Curimatidae)
(2020-01-01)
Potamorhina includes the largest species in the Neotropical fish family Curimatidae. They perform long-distance migrations in large schools and represent relative importance for regional fisheries in South American lowlands. ...
Classical and molecular cytogenetic characterization of Agonostomus monticola, a primitive species of Mugilidae (Mugiliformes)
(Springer, 2009-01-01)
This study reports the first description of the karyotype of Agonostomus monticola, a species belonging to a genus which is considered to be the most primitive among living mugilid fish. Specimens from Panama and Venezuela ...
Cytogenetic characterization of Aloysia virgata Ruiz and Pavan (Verbenaceae)
(Instituto de Tecnologia do Paraná - Tecpar, 2009)
Cytogenetic mapping of the W chromosome in the genus Leporinus (Teleostei, Anostomidae) using a highly repetitive DNA sequence
(Wiley-Blackwell, 2012-03-01)
The distribution of the Leporinus elongatus LeSpeI repetitive sequence in other Leporinus species was studied in an attempt to elucidate the evolutionary history of sex chromosomes in this genus using chromosome fluorescence ...
Genomic imbalances in esophageal squamous cell carcinoma identified by molecular cytogenetic techniques
(Sociedade Brasileira de Genética, 2010-01-01)
This review summarizes the chromosomal changes detected by molecular cytogenetic approaches in esophageal squamous cell carcinoma (ESCC), the ninth most common malignancy in the world. Whole genome analyses of ESCC cell ...
The karyotype of Holoaden luederwaldti (Anura, Strabomantidae), with report of natural triploidy
(2012-01-01)
The genus Holoaden includes three species described so far, but the only published cytogenetic data is from Holoaden bradei, with the karyotype 2n = 18, based on conventional staining. In the present paper we report, for ...