Although most non-long terminal repeat (non-LTR) retrotransposons are inserted throughout the host genome, many non-LTR elements in the R1 clade are inserted into specific sites within the target sequence. Four R1 clade families have distinct target specificity: R1 and RT insert into specific sites of 28S rDNA, and TRAS and SART insert into different sites within the (TTAGG)(n) telomeric repeat...

Ghaderi F, Hasehemi SAA (2022) Phytophthora citricola as the causal agent of persimmon root rot in Fars province of Iran. Plant Pathology Science 11(2): 1-10.   Doi: 10.2982/PPS.11.2.1   Introduction: Phytophthora species are a serious threat to plant products worldwide. Therefore, identifying them is the first step in finding a way to treat the disease. The aim of this study was to identify ...

Sponges (Porifera, Spongillida) make up the bulk of benthic biomass in Lake Baikal and are represented by family Lubomirskiidae, a collection endemic species, several species cosmopolitan Spongillidae. We conducted an analysis D3 domain 28S rDNA 16 freshwater sponge species. Based on molecular data, we were able to identify all collected Spongillidae specimens whose identification was difficult...

Scorpions are "living but sophisticated fossils" that have changed little in their morphology since their first appearance over the past 450 million years ago. To provide a genetic resource for understanding the evolution of scorpion genome and the relationships between scorpions and other organisms, we first determined the genome size of the scorpion Mesobuthus martensii Karsch (about 600 Mbp)...

To determine the molecular phylogenic location of Plagiorchis muris, 28S D1 ribosomal DNA (rDNA) and mitochondrial cytochrome C oxidase subunit I (mtCOI) were sequenced and compared with other trematodes in the family Plagiorchiidae. The 28S D1 tree of P. muris was found to be closely related to those of P. elegans and other Plagiorchis species. And, the mtCOI tree also showed that P. muris is ...

Abstract Crangonyx apalachee n. sp. Cannizzaro & Sawicki in Cannizzaro, Sisco Sawicki, is described from Lake Jackson Leon County, Florida, USA, a prairie lake that periodically drains through karst sinkholes during times of low rainfall. The new species occurs tall grass along the lake’s shoreline. Molecular analyses nuclear 18S rDNA and 28S with mitochondrial 16S rDNA, combined morphologi...

Patterns of restriction-endonuclease site and length variation at the nuclear rDNA locus (18S + 28S rRNA gene complex) were examined in rodents. Of the 164 restriction sites mapped for seven species, 22 were conserved (mapping to the 18S, 28S, and 5.8S genes and ITS1) in all three Onychomys species as well as in Mus musculus and in three closely related peromyscine rodents, Peromyscus boylii, P...

Phylogenetic analysis of 1656 aligned sites in the 28S ribosomal RNA gene of frogs supports some of the recently recognized higher groups of anurans but provides counter-support for others. The 28S rDNA data support the monophyly of the recently recognized Pipanura (mesobatrachians plus neobatrachians), which in turn indicates paraphyly of archaeobatrachians. Mesobatrachians (pelobatoids plus p...

Based upon the three experimentally derived models of E. coli 23S rRNA (1-3) and the partial model for yeast 26S rRNA (4), which was deduced by homology to E. coli, we derived a secondary structure model for Xenopus laevis 28S rRNA. This is the first complete model presented for eukaryotic 28S rRNA. Compensatory base changes support the general validity of our model and offer help to resolve wh...