Results 11 to 20 of about 1,783,256 (340)

A study of constitutive heterochromatin and NOR banding in three species of Indian major carps from the State of Haryana, India [PDF]

open access: yes, 2012
Cytogenetic survey of fishes becomes increasingly important to establish chromosomal relation between the teleosts, to have a glimpse of the relation between chromosomal evolution and differentiation of vertebrate species.
Neeru, Neeru   +2 more
core   +6 more sources

A reference chromosomal map of the hot chili pepper Capsicum pubescens cv. “locoto” (Solanaceae)

open access: yesRodriguésia, 2021
Capsicum pubescens is a cultivated hot chili pepper, consumed in Latin American cuisine as a distinctive ingredient, and popularly known as “locoto” or “rocoto”.
Patricia Mabel Aguilera   +3 more
doaj   +1 more source

Cromosomas y localizacion de Ag-NOR en poblaciones fluviales de Salmo trutta fario L. 1758 (Salmoniformes: Salmonidae) del Desierto de Atacama, Chile [PDF]

open access: yes, 2012
Salmo trutta fario L. 1758, presented a chromosome number 2n = 80 and a fundamental number NF = 100. The haploid chromosome set consists of seven metacentric chromosomes, three submetacentric, one subtelocentric and 29 telocentrics.
Capetillo Arcos, J.   +3 more
core   +1 more source

Localización cromosómica de la región organizadora nucleolar en Rhodophiala bagnoldii (Herb.) Traub (Asparagales: Amaryllidaceae) determinada por tinción con nitrato de plata [PDF]

open access: yes, 2015
Estudios cariotípicos en Rhodophiala bagnoldii (Herb.) Traub (2n = 18) han descrito constricciones secundarias subteloméricas localizadas en el brazo largo del par cromosómico 7. En este trabajo, una señal Ag-NOR positiva fue observada en la constricción

core   +1 more source

Silver-negative NORs in Pamphagus ortolaniae (Orthoptera: Pamphagidae)

open access: yesEuropean Journal of Entomology, 2008
The present paper reports some cytogenetic peculiarities observed in the Ag-NORs of Pamphagus ortolaniae chromosomes, the unusual behaviour of ribosomal sites after silver staining and the intense Ag-positive reaction of centromeric regions at ...
Roberto VITTURI   +4 more
doaj   +1 more source

A rapid alternative technique for obtaining silver-positive patterns in chromosomes

open access: yesGenetics and Molecular Biology, 2004
Silver nitrate chromosome staining to evidence nucleolar organizer regions (NORs) is a widely adopted methodology. The aim of the present work was to improve this technique, reducing the preparation time without decreasing the quality of the results ...
Karine Frehner Kavalco, Rubens Pazza
doaj   +1 more source

Exploring Fish Miscellany from Biodiversity Hotspot Region of Northeast India Through Chromosome Profiling

open access: yesCroatian Journal of Fisheries, 2022
North Eastern states of India are blessed with extensive ecoclimatic conditions and much of India’s endemic flora and fauna. This region is rich in fish diversity with plenty of species of ornamental importance, including model species zebrafish.
Kushwaha Basdeo   +7 more
doaj   +1 more source

Ag-NOR staining and satellite association in lymphoproliferative disorders

open access: yesHereditas, 2008
The nucleolar organizer regions (NORs) activity and the frequency of satellite associations (SA) in peripheral blood lymphocytes from patients with two chronic lymphoproliferative disorders were studied: 10 cases with B-cell chronic lymphocytic leukemia (B-CLL) and 10 with mycosis fungoides (MF). Thirteen healthy individuals formed the MF control group,
E, Pedrazzini, I, Slavutsky
openaire   +2 more sources

The significance of cytogenetics for the study of karyotype evolution and taxonomy of water bugs (Heteroptera, Belostomatidae) native to Argentina [PDF]

open access: yes, 2013
Male meiosis behaviour and heterochromatin characterization of three big water bug species were studied. Belostoma dentatum (Mayr, 1863), B. elongatum Montandon, 1908 and B. gestroi Montandon, 1903 possess 2n = 26 + X1X2Y (male).
Bressa, Maria Jose   +2 more
core   +2 more sources

Comparative analysis of the location of rDNA in the Palaearctic bushcricket genus Isophya (Orthoptera: Tettigoniidae: Phaneropterinae)

open access: yesEuropean Journal of Entomology, 2011
The present study focused on the evolution of the karyotype in 21 taxa of the genus Isophya, which was done by mapping the location on the chromosomes of ribosomal RNA (rRNA) coding genes using fluorescence in situ hybridization (FISH) with an 18S rDNA ...
Beata GRZYWACZ   +4 more
doaj   +1 more source

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