Analysis of cytochrome oxidase 1 (CO1) mitochondrial gene nucleotide sequences in the arctic flounder Liopsetta glacialis and the striped flounder Liopsetta pinnifasciata (Pleuronectidae) from the Okhotsk Sea

2014 ◽  
Vol 48 (6) ◽  
pp. 352-356
Author(s):  
N. A. Potapova ◽  
S. P. Pustovoit ◽  
P. P. Yusupov
Keyword(s):  
Cytochrome Oxidase ◽  
Mitochondrial Gene ◽  
Nucleotide Sequences ◽  
The Arctic ◽  
Okhotsk Sea ◽  
Cytochrome Oxidase 1

Genetic diversity within Scorpio maurus (Scorpiones: Scorpionidae) from morocco: Preliminary evidence based on CO1 mitochondrial DNA sequences

Biologia ◽  
2008 ◽  
Vol 63 (6) ◽  
Author(s):  
Elsa Froufe ◽  
Pedro Sousa ◽  
Paulo Alves ◽  
David Harris
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Cytochrome Oxidase ◽  
Dna Sequences ◽  
Preliminary Analysis ◽  
Mitochondrial Gene ◽  
Sequence Divergence ◽  
Preliminary Evidence ◽  
Evidence Based ◽  
Cytochrome Oxidase 1

AbstractThe large-clawed scorpion, Scorpio maurus, is a medically important scorpion and yet nothing is known regarding genetic diversity within this species. As a preliminary analysis we determined variation within the cytochrome oxidase 1 (CO1) mitochondrial gene from specimens from Morocco. High levels of genetic diversity were found that presented some geographical coherence. Of the two identified subspecies from Morocco, S. maurus birulai and S. maurus fuliginosus, the latter included genetically distinct lineages (8.0% uncorrected sequence divergence), indicating a detailed morphological and molecular revision is needed for this species.

Phylogeny of the Australian freshwater crayfish Cherax destructor-complex (Decapoda : Parastacidae) inferred from four mitochondrial gene regions

2005 ◽  
Vol 19 (3) ◽  
pp. 209 ◽  
Author(s):  
Thuy T. T. Nguyen ◽  
Christopher M. Austin
Keyword(s):  
16S Rrna ◽  
Cytochrome Oxidase ◽  
Mitochondrial Gene ◽  
Large Subunit ◽  
Strong Support ◽  
Interspecific Variation ◽  
Rrna Gene ◽  
Freshwater Crayfish ◽  
Cherax Destructor ◽  
Australian Freshwater

The phylogenetic relationships among 32 individuals of Australian freshwater crayfish belonging to the Cherax destructor-complex were investigated using a dataset comprising sequences from four mitochondrial gene regions: the large subunit rRNA (16S rRNA), cytochrome oxidase I (COI), adenosine triphosphatase 6 (ATPase 6), and cytochrome oxidase III (COIII). A total of 1602 bp was obtained, and a combined analysis of the data produced a tree with strong support (bootstrap values 94–100%) for three divergent lineages, verifying the phylogenetic hypotheses of relationships within the C. destructor species-complex suggested in previous studies. Overall, sequences from the 16S rRNA gene showed the least variation compared to those generated from protein coding genes, which presented considerably greater levels of divergence. The level of divergence within C. destructor was found to be greater than that observed in other species of freshwater crayfish, but interspecific variation among species examined in the present study was similar to that reported previously.

scholarly journals Mitochondrial gene expression in small intestinal epithelial cells

1995 ◽  
Vol 308 (2) ◽  
pp. 665-671 ◽  
Author(s):  
T P Mayall ◽  
I Bjarnason ◽  
U Y Khoo ◽  
T J Peters ◽  
A J S Macpherson
Keyword(s):  
Epithelial Cells ◽  
Cytochrome Oxidase ◽  
Cytochrome B ◽  
Intestinal Epithelial Cells ◽  
Mitochondrial Gene ◽  
Cytochrome Oxidase I ◽  
Mrna Levels ◽  
Intestinal Epithelial ◽  
Mitochondrial Transcription Factor ◽  
Small Intestinal

Most mitochondrial genes are transcribed as a single large transcript from the heavy strand of mitochondrial DNA, and are subsequently processed into the proximal mitochondrial (mt) 12 S and 16 S rRNAs, and the more distal tRNAs and mRNAs. We have shown that in intestinal epithelial biopsies the steady-state levels of mt 12 S and 16 S rRNA are an order of magnitude greater than those of mt mRNAs. Fractionation of rat small intestinal epithelial cells on the basis of their maturity has shown that the greatest ratios of 12 S mt rRNA/cytochrome b mt mRNA or 12 S mt rRNA/cytochrome oxidase I mt mRNA are found in the surface mature enterocytes, with a progressive decrease towards the crypt immature enteroblasts. Cytochrome b and cytochrome oxidase I mt mRNA levels are relatively uniform along the crypt-villus axis, but fractionation experiments showed increased levels in the crypt base. The levels of human mitochondrial transcription factor A are also greater in immature crypt enteroblasts compared with mature villus enterocytes. These results show that the relative levels of mt rRNA and mRNA are distinctly regulated in intestinal epithelial cells according to the crypt-villus position and differentiation status of the cells, and that there are higher mt mRNA and mt TFA levels in the crypts, consistent with increased transcriptional activity during mitochondrial biogenesis in the immature enteroblasts.

scholarly journals Notes on the distribution and habitat of Ochthebius lobicollis Rey, 1885, a poorly known north-western Mediterranean coastal species (Coleoptera: Hydraenidae)

2019 ◽  
Vol 51 (1) ◽  
pp. 51-54
Author(s):  
Ignacio Ribera ◽  
Carles Hernando
Keyword(s):  
Iberian Peninsula ◽  
Cytochrome Oxidase ◽  
New Records ◽  
Genetic Data ◽  
Western Mediterranean ◽  
Cytochrome Oxidase 1 ◽  
Coastal Species ◽  
Gulf Of Lion ◽  
First Time ◽  
North Western

Ochthebius (Ochthebius) lobiccoastal habitatsollis Rey, 1885 is recorded for the first time from the Iberian Peninsula (Girona) and the island of Corsica; new records are also given for the islands of Menorca and Sardinia. The species is known only from coastal habitats through the Gulf of Lion and the Ligurian and Balearic seas, typically living in rockpools of different salinity or small trickles or freshwater runoffs. Genetic data of the cytochrome oxidase 1 gene from Iberian, Menorcan and Sardinian specimens shows less than 1% divergence, suggesting lack of isolation between populations.

scholarly journals Sequence of the rice mitochondrial gene for cytochrome oxidase subunit 3

1990 ◽  
Vol 18 (2) ◽  
pp. 371-371 ◽  
Author(s):  
Edward K. Kaleikau ◽  
Charles P. André ◽  
Virginia Walbot
Keyword(s):  
Cytochrome Oxidase ◽  
Mitochondrial Gene ◽  
Cytochrome Oxidase Subunit ◽  
Oxidase Subunit
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