...Ya Liu; Menghuan Song; Wei Luo; Yun Xia; Xiaomao Zeng In an attempt to analyze the organization of repetitive DNAs in the amphibian genome, 7 microsatellite motifs and a 5S rDNA sequence were synthesized and mapped in the karyotypes of 5 Amolops species. The results revealed nonrandom distribution...

...Ting Liu; Menghuan Song; Yun Xia; Xiaomao Zeng In an attempt to extend the knowledge of the 5S rDNA organization in anurans, the 5S rDNA sequences of Amolops mantzorum were isolated, characterized, and mapped by FISH. Two forms of 5S rDNA, type I (209 bp) and type II (about 870 bp), were found...

... a B-specific satellite and a repeat enriched in polymorphic A chromosome segments. The B-specific tandem repeat PLsatB originated from sequence amplification including 5S rDNA fragments. [email protected] 14 01 2016 13 5 2016 © 2016 S. Karger AG, Basel 2016 Copyright...

... of this study was to physically map repetitive DNA sequences (5S rDNA, telomeric sequences, tropomyosin gene 1, and retroelements Rex1 and SINE ) of mitotic chromosomes of Amazonian species of teiids (Ameiva ameiva , Cnemidophorus sp. 1, Kentropyx calcarata , Kentropyx pelviceps, and Tupinambis teguixin...

...Fernando Roa; Marcelo Guerra 5S and 45S rDNA sites are the best mapped chromosome regions in eukaryotic chromosomes. In this work, a database was built gathering information about the position and number of 5S rDNA sites in 784 plant species, aiming to identify patterns of distribution along...

... of variability in the 5S rDNA genes observed in several distinct fish species. This variability is mainly referred to NTSs and includes the presence of other multigene families (mainly LINEs, SINEs, non-LTR retrotransposons, and U snRNA families). Different types of microsatellites have also been found...

...S.E. Vittorazzi; L.B. Lourenço; M.L. Del-Grande; S.M. Recco-Pimentel In the present study, we describe for the first time a family of 190-bp satellite DNA related to 5S rDNA in anurans and the existence of 2 forms of 5S rDNA, type I (201 bp) and type II (690 bp). The sequences were obtained from...

... hybridization (FISH) with the Rex 3 retrotransposon and 5S rDNA probes in mitotic and meiotic chromosomes. In the 3 species, diploid chromosome number was 2n = 60 and karyotypes contained predominantly meta-submetacentric chromosomes. C-banding showed blocks of constitutive heterochromatin mainly...

... banding) as well as fluorescent in situ hybridization (FISH) to detect 18S rDNA, 5S rDNA, and 5S Hin dIII satellite DNA sites. The isolation, cloning and characterization of an 18S rDNA probe from H. malabaricus genome were also performed for the first time in order to develop a more specific probe. The 3...