Evolutionary insight on localization of 18S, 28S rDNA genes on homologous chromosomes in Primates genomes
نویسندگان
چکیده
منابع مشابه
Evolutionary insight on localization of 18S, 28S rDNA genes on homologous chromosomes in Primates genomes
We explored the topology of 18S and 28S rDNA units by fluorescence in situ hybridization (FISH) in the karyotypes of thirteen species representatives from major groups of Primates and Tupaia minor (Günther, 1876) (Scandentia), in order to expand our knowledge of Primate genome reshuffling and to identify the possible dispersion mechanisms of rDNA sequences. We documented that rDNA probe signals...
متن کاملLocations of 18S and 28S ribosomal genes on the chromosomes of the Indian muntjac
The locations of genes coding for 18S and 28S ribosomal RNA have been mapped on metaphase chromosomes of the Indian muntjac M. muntjak by in situ hybridization with (3H)rRNA from the toad X. laevis. The results show that, in the muntjac, rDNA clusters are associated with the prominent secondary constrictions on the X and the Y1 chromos. In addition a cluster of rDNA is found near the tip of one...
متن کاملA re-evaluation of Lulworthiales: relationships based on 18S and 28S rDNA.
The Lulworthiales consists of four genera: three that were removed from the Halosphaeriales, namely Lulworthia, Lindra, and Kohlmeyeriella; and Spathulospora, reassigned from the Spathulosporales. However, studies have shown that neither Lulworthia nor Lindra are monophyletic genera. This study was therefore undertaken to re-evaluate the genera of the Lulworthiales based on the SSU and LSU rDNA...
متن کاملInternal phylogeny of the Chilopoda (Myriapoda, Arthropoda) using complete 18S rDNA and partial 28S rDNA sequences.
The internal phylogeny of the 'myriapod' class Chilopoda is evaluated for 12 species belonging to the five extant centipede orders, using 18S rDNA complete gene sequence and 28S rDNA partial gene sequence data. Equally and differentially weighted parsimony, neighbour-joining and maximum-likelihood were used for phylogenetic reconstruction, and bootstrapping and branch support analyses were perf...
متن کاملEvolutionary dynamics of rDNA clusters on chromosomes of moths
31 We examined chromosomal distribution of major ribosomal DNAs (rDNAs), clustered in the nucleolar 32 organizer regions (NORs), in 18 species of moths and butterflies using fluorescence in situ 33 hybridization (FISH) with a codling moth (Cydia pomonella) 18S rDNA probe. Most species showed 34 one or two rDNA clusters in their haploid karyotype but exceptions with four to eleven clusters also ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Comparative Cytogenetics
سال: 2018
ISSN: 1993-078X,1993-0771
DOI: 10.3897/compcytogen.v12i1.19381