Results 41 to 50 of about 2,914 (162)

First cytogenetic characterization of Pseudoloricaria laeviuscula (Valenciennes, 1840): a monotypic genus of Loricariidae (Loricariinae) [PDF]

Acta Amazonica
This study presents the first cytogenetic characterization of Pseudoloricaria laeviuscula, a species widely distributed in the Amazon and Tocantins-Araguaia basins.
Ana Júlia ALEGRIA SERRA, Simone Cardoso SOARES, Leandro MARAJÓ, Eliana FELDBERG, José Antônio ALVES GOMES   +4 more
doaj   +1 more source

Identification of two new repetitive elements and chromosomal mapping of repetitive DNA sequences in the fish Gymnothorax unicolor (Anguilliformes: Muraenidae)

European Journal of Histochemistry, 2011
Muraenidae is a species-rich family, with relationships among genera and species and taxonomy that have not been completely clarified. Few cytogenetic studies have been conducted on this family, and all of them showed the same diploid chromosome number ...
E. Coluccia, G. Pichiri, M. Nieddu, P. Coni, S. Manconi, A.M. Deiana, S. Salvadori, R. Mezzanotte   +7 more
doaj   +1 more source

The distribution pattern of 5-methylcytosine in rye (Secale L.) chromosomes.

PLoS ONE, 2020
The rye (Secale L.) genome is large, and it contains many classes of repetitive sequences. Secale species differ in terms of genome size, heterochromatin content, and global methylation level; however, the organization of individual types of sequences in
Anna Kalinka, Magdalena Achrem
doaj   +1 more source

Nucleolus organizer region heteromorphism in patients with Down syndrome and their parents

Eastern Mediterranean Health Journal, 1999
The study aimed to evaluate the role of nucleolus organizer region [NOR] heteromorphism as an etiological factor for parental nondisjunction in Down syndrome by comparing 25 patients affected by Down syndrome, and their parents with a control group of 80 non-affected Egyptians. All parents had normal karyotypes.
N A, Nazmy, S M, Kotb, M M, Mokhtar, S R, Ismail   +3 more
openaire   +2 more sources

Description of the karyotypes of Stejneger's beaked whale (Mesoplodon stejnegeri) and Hubbs’ beaked whale (M. carlhubbsi)

Genetics and Molecular Biology, 2017
The genus Mesoplodon (Cetacea: Odontoceti: Ziphiidae) is one of the few cetacean genera with the karyotype 2n = 42. The 2n = 42 karyotype of M. europaeus and M.
Nozomi Kurihara, Yuko Tajima, Tadasu K. Yamada, Ayaka Matsuda, Takashi Matsuishi   +4 more
doaj   +1 more source

Regulatory roles of nucleolus organizer region-derived long non-coding RNAs. [PDF]

Mamm Genome, 2022
Hao Q, Prasanth KV.
europepmc   +1 more source

Cytogenetic analysis of Baryancistrus xanthellus (Siluriformes: Loricariidae: Ancistrini), an ornamental fish endemic to the Xingu River, Brazil

Neotropical Ichthyology
Baryancistrus xanthellus is a species from the Ancistrini tribe known commonly as "amarelinho " or "golden nugget pleco". It is one of the most popular and valued ornamental fishes due to its color pattern.
Larissa A. Medeiros, Eduardo G. Ginani, Leandro M. Sousa, Lúcia H. Rapp Py-Daniel, Eliana Feldberg   +4 more
doaj   +1 more source

Description of the karyotype of Rhagomys rufescens Thomas, 1886 (Rodentia, Sigmodontinae) from Southern Brazil Atlantic forest

Genetics and Molecular Biology, 2010
Rhagomys rufescens (Rodentia: Sigmodontinae) is an endemic species of the Atlantic forest from Southern and Southeastern Brazil. Some authors consider Rhagomys as part of the tribe Thomasomyini; but its phylogenetic relationships remain unclear ...
André Filipe Testoni, Sérgio Luiz Althoff, André Paulo Nascimento, Francisco Steiner-Souza, Ives José Sbalqueiro   +4 more
doaj  

Karyomorphology and microsatellites characterization of Limnonectes gyldenstolpei: first report from Thailand

Caryologia
In the present investigation, karyotype and microsatellites pattern in the chromosome of Gyldenstolpe’s Frog (Limnonectes gyldenstolpei) have been analyzed.
Sumalee Phimphan, Surachest Aiumsumang, Kan Khoomsab, Itsara Tangsuwan, Alongklod Tanomtong   +4 more
doaj   +1 more source

Evolution of trans-Andean endemic fishes of the genus Cheirodon (Teleostei: Characidae) are associated with chromosomal rearrangements

Revista Chilena de Historia Natural, 2018
Background Among Neotropical fishes, the family Characidae is highly diverse and speciose and its taxonomy is not completely resolved. In Chile, the family is represented by five species, all within the genus Cheirodon, of which C.
Miguel Ángel Soto, Jonathan Pena Castro, Laura Ines Walker, Luiz Roberto Malabarba, Mateus Henrique Santos, Mara Cristina de Almeida, Orlando Moreira-Filho, Roberto Ferreira Artoni   +7 more
doaj   +1 more source