Systematics and biogeography of Rhodniini (Heteroptera: Reduviidae: Triatominae) based on 16S mitochondrial rDNA sequences

2007 ◽  
Vol 34 (4) ◽  
pp. 699-712 ◽  
Author(s):  
Alexandre Silva de Paula ◽  
Liléia Diotaiuti ◽  
Cleber Galvão
Keyword(s):  
Rdna Sequences ◽  
Mitochondrial Rdna

scholarly journals Plastome variation and phylogeny of Taxillus (Loranthaceae)

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0256345
Author(s):  
Huei-Jiun Su ◽  
Shu-ling Liang ◽  
Daniel L. Nickrent
Keyword(s):  
Nadh Dehydrogenase ◽  
General Pattern ◽  
Trna Genes ◽  
Dna Barcodes ◽  
Variable Regions ◽  
Rdna Sequences ◽  
Phylogenetic Studies ◽  
Difficult Genus ◽  
Molecular Phylogenetic ◽  
Mitochondrial Rdna

Several molecular phylogenetic studies of the mistletoe family Loranthaceae have been published such that now the general pattern of relationships among the genera and their biogeographic histories are understood. Less is known about species relationships in the larger (> 10 species) genera. This study examines the taxonomically difficult genus Taxillus composed of 35–40 Asian species. The goal was to explore the genetic diversity present in Taxillus plastomes, locate genetically variable hotspots, and test these for their utility as potential DNA barcodes. Using genome skimming, complete plastomes, as well as nuclear and mitochondrial rDNA sequences, were newly generated for eight species. The plastome sequences were used in conjunction with seven publicly available Taxillus sequences and three sequences of Scurrula, a close generic relative. The Taxillus plastomes ranged from 121 to 123 kbp and encoded 90–93 plastid genes. In addition to all of the NADH dehydrogenase complex genes, four ribosomal genes, infA and four intron-containing tRNA genes were lost or pseudogenized in all of the Taxillus and Scurrula plastomes. The topologies of the plastome, mitochondrial rDNA and nuclear rDNA trees were generally congruent, though with discordance at the position of T. chinensis. Several variable regions in the plastomes were identified that have sufficient numbers of parsimony informative sites as to recover the major clades seen in the complete plastome tree. Instead of generating complete plastome sequences, our study showed that accD alone or the concatenation of accD and rbcL can be used in future studies to facilitate identification of Taxillus samples and to generate a molecular phylogeny with robust sampling within the genus.

Phylogenetic analyses of the Lyophylleae (Agaricales, Basidiomycota) based on nuclear and mitochondrial rDNA sequences

2002 ◽  
Vol 106 (9) ◽  
pp. 1043-1059 ◽  
Author(s):  
Valérie Hofstetter ◽  
Heinz Clémençon ◽  
Rytas Vilgalys ◽  
Jean-Marc Moncalvo
Keyword(s):  
Phylogenetic Analyses ◽  
Rdna Sequences ◽  
Mitochondrial Rdna

scholarly journals Molecular analysis of the mitochondrial markers COI, 12S rDNA and 16S rDNA for six species of Iranian scorpions

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Parisa Soltan-Alinejad ◽  
Javad Rafinejad ◽  
Farrokh Dabiri ◽  
Piero Onorati ◽  
Olle Terenius ◽  
...  
Keyword(s):  
16S Rdna ◽  
Phylogenetic Analyses ◽  
Coi Gene ◽  
Diagnostic Tools ◽  
Morphological Identification ◽  
Species Determination ◽  
Important Species ◽  
Mitochondrial Markers ◽  
12S Rdna ◽  
Rdna Sequences

Abstract Objectives Annually, 1.2 million humans are stung by scorpions and severely affected by their venom. Some of the scorpion species of medical importance have a similar morphology to species with low toxicity. To establish diagnostic tools for surveying scorpions, the current study was conducted to generate three mitochondrial markers, Cytochrome Oxidase I (COI gene), 12S rDNA and 16S rDNA for six species of medically important Iranian scorpions: Androctonus crassicauda, Hottentotta saulcyi, Mesobuthus caucasicus, M. eupeus, Odontobuthus doriae, and Scorpio maurus. Results Phylogenetic analyses of the obtained sequences corroborated the morphological identification. For the first time, 12S rDNA sequences are reported from Androctonus crassicauda, Hottentotta saulcyi, Mesobuthus caucasicus and M. eupeus and also the 16S rDNA sequence from Hottentotta saulcyi. We conclude that the mitochondrial markers are useful for species determination among these medically important species of scorpions.

Redescription and synonymization of Oscheius citri Tabassum, Shahina, Nasira and Erum, 2016 (Rhabditida, Rhabditidae) from India and its taxonomical consequences

2021 ◽  
Vol 95 ◽  
Author(s):  
A. Rana ◽  
A.H. Bhat ◽  
A.K. Chaubey ◽  
V. Půža ◽  
J. Abolafia
Keyword(s):  
Indian Population ◽  
Uttar Pradesh ◽  
Nematode Species ◽  
Molecular Data ◽  
Molecular Characteristics ◽  
Morphometric Characteristics ◽  
High Similarity ◽  
Rdna Sequences ◽  
Indian Strain ◽  
28S Rdna Sequences

Abstract A population of a nematode species belonging to the genus Oscheius was isolated in western Uttar Pradesh, India. Morphological and morphometrical studies on this species showed its high similarity with six species described previously from Pakistan (Oscheius citri, O. cobbi, O. cynodonti, O. esculentus, O. punctatus and O. sacchari). The molecular analysis of the ITS1-5.8S-ITS2 rDNA sequences of the Indian population and the six species described from Pakistan showed that all the sequences are almost identical. Thus, based on morphological and molecular characteristics, all of the six above-mentioned Pakistani species and Indian strain do not differ from each other, hence can be considered synonyms. The correct name for this taxon is the first described species O. citri. Additionally, the phylogenetic analysis of the 18S rDNA and the 28S rDNA sequences showed that Oscheius citri is sister to the clade formed by O. chongmingensis and O. rugaoensis from China. The high similarity of morphological and morphometric characteristics of O. citri and other species, O. maqbooli, O. nadarajani, O. niazii, O. shamimi and O. siddiqii, suggest their conspecificity; however, lack of molecular data for these species does not allow this hypothesis to be tested.

scholarly journals Phylogeny of the Thoracican Barnacles Based on 18S rDNA Sequences

2000 ◽  
Vol 20 (2) ◽  
pp. 393-398 ◽  
Author(s):  
D. James Harris ◽  
Laura S. Maxson ◽  
Lee F. Braithwaite ◽  
Keith A. Crandall
Keyword(s):  
18S Rdna ◽  
Rdna Sequences ◽  
18S Rdna Sequences
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