The molecular systematics and diversification of a taxonomically unstable group of Asian cicada tribes related to Cicadini Latreille, 1802 (Hemiptera : Cicadidae)

2021 ◽  
Author(s):  
Kathy B. R. Hill ◽  
David C. Marshall ◽  
Kiran Marathe ◽  
Maxwell S. Moulds ◽  
Young June Lee ◽  
...  
Keyword(s):  
Convergent Evolution ◽  
Elongation Factor ◽  
Cytochromec Oxidase ◽  
Elongation Factor 1Α ◽  
Geographic Context ◽  
The Family ◽  
Cenozoic Era ◽  
Colour Patterns ◽  
Nuclear Acetyltransferase ◽  
Ancestral Character States

The cicadas (Hemiptera: Cicadidae) related to tribe Cicadini exhibit some of the most remarkable phenotypes in the family, with many genera possessing striking colour patterns and unusual morphological features. This largely Asian group of 13 tribes has proven challenging for cicada taxonomists, in part because of likely convergent evolution or losses of these phenotypes. We present the first focused molecular phylogeny of this clade, including ~60 described genera. The genetic dataset contains 839 ingroup-informative sites (out of 2575) from mitochondrial cytochromec oxidase subunitI, nuclear elongation factor-1α, and nuclear acetyltransferase. We use Bayesian and maximum likelihood trees to test recent changes in tribe- and subtribe-level classification, and we reconstruct ancestral character states for potentially convergent traits influencing tribe descriptions. We use fossil and molecular clock calibrations to estimate the temporal and geographic context of the radiation. The tribes Gaeanini, Leptopsaltriini, Platypleurini, Psithyristriini, and Tosenini appear polyphyletic and in need of revision, in part because of convergent evolution of opaque wings and multiple convergent gains or losses of abdominal tubercles. Kalabita Moulton, 1923 is transferred from Platypleurini to Leptopsaltriini. Vittagaeana gen. nov. is established for Vittagaeana paviei comb. nov. and Vittagaeana dives comb. nov., formerly in Tosena. Sinosenini syn. nov. is synonymised with Dundubiina. Ayuthiini trib. nov. is established with two new subtribes for Ayuthia Distant, 1919 and Distantalna Boulard, 2009, formerly in Tosenini. For the earliest split in the tree, one common ancestor appears to have been Indian + Asian in geographic distribution and the other Asian. We estimate that the radiation began in the middle Cenozoic Era, possibly as recently as the early Miocene. The recent and steady pattern of diversification suggests that refinement of tribe diagnoses will prove challenging. http://zoobank.org:urn:lsid:zoobank.org:pub:5A6C16F4-5269-453B-BA5C-B29C3394683A

Biochemical analysis of the interaction between elongation factor 1α and α/β-tubulins from a ciliate, Tetrahymena pyriformis

FEBS Letters ◽  
1999 ◽  
Vol 453 (1-2) ◽  
pp. 29-34 ◽  
Author(s):  
Masumi Nakazawa ◽  
David Moreira ◽  
Jacqueline Laurent ◽  
Hervé Le Guyader ◽  
Yasuo Fukami ◽  
...  
Keyword(s):  
Biochemical Analysis ◽  
Elongation Factor ◽  
Tetrahymena Pyriformis ◽  
Elongation Factor 1Α

scholarly journals Characterization and Pathogenicity of Botryosphaeriaceae Species Collected from Olive and Other Hosts in Spain and California

2010 ◽  
Vol 100 (12) ◽  
pp. 1340-1351 ◽  
Author(s):  
Juan Moral ◽  
Concepción Muñoz-Díez ◽  
Nazaret González ◽  
Antonio Trapero ◽  
Themis J. Michailides
Keyword(s):  
Sequence Data ◽  
Close Association ◽  
Elongation Factor ◽  
Fruit Rot ◽  
Disease Symptoms ◽  
Dna Sequence Data ◽  
Olive Fly ◽  
The Family ◽  
Pathogenicity Tests ◽  
Olive Trees

Species in the family Botryosphaeriaceae are common pathogens causing fruit rot and dieback of many woody plants. In this study, 150 Botryosphaeriaceae isolates were collected from olive and other hosts in Spain and California. Representative isolates of each type were characterized based on morphological features and comparisons of DNA sequence data of three regions: internal transcribed spacer 5.8S, β-tubulin, and elongation factor. Three main species were identified as Neofusicoccum mediterraneum, causing dieback of branches of olive and pistachio; Diplodia seriata, causing decay of ripe fruit and dieback of olive branches; and Botryosphaeria dothidea, causing dalmatian disease on unripe olive fruit in Spain. Moreover, the sexual stage of this last species was also found attacking olive branches in California. In pathogenicity tests using unripe fruit and branches of olive, D. seriata isolates were the least aggressive on the fruit and branches while N. mediterraneum isolates were the most aggressive on both tissues. Isolates of B. dothidea which cause dalmatian disease on fruit were not pathogenic on branches and only weakly aggressive on fruit. These results, together with the close association between the presence of dalmatian disease symptoms and the wound created by the olive fly (Bactrocera oleae), suggest that the fly is essential for the initiation of the disease on fruit. Isolates recovered from dalmatian disease symptoms had an optimum of 26°C for mycelial growth and 30°C for conidial germination, suggesting that the pathogen is well adapted to high summer temperatures. In contrast, the range of water activity in the medium for growth of dalmatian isolates was 0.93 to 1 MPa, which was similar to that for the majority of fungi. This study resolved long-standing questions of identity and pathogenicity of species within the family Botryosphaeriaceae attacking olive trees in Spain and California.

scholarly journals Molecular insights into the interaction of the ribosomal stalk protein with elongation factor 1α

2014 ◽  
Vol 42 (22) ◽  
pp. 14042-14052 ◽  
Author(s):  
Kosuke Ito ◽  
Takayoshi Honda ◽  
Takahiro Suzuki ◽  
Tomohiro Miyoshi ◽  
Ryo Murakami ◽  
...  
Keyword(s):  
Elongation Factor ◽  
Elongation Factor 1Α ◽  
Ribosomal Stalk

G13A Substitution Affects the Biochemical and Physical Properties of the Elongation Factor 1α. A Reduced Intrinsic GTPase Activity Is Partially Restored by Kirromycin†

Biochemistry ◽  
2002 ◽  
Vol 41 (2) ◽  
pp. 628-633 ◽  
Author(s):  
Mariorosario Masullo ◽  
Piergiuseppe Cantiello ◽  
Barbara de Paola ◽  
Francesca Catanzano ◽  
Paolo Arcari ◽  
...  
Keyword(s):  
Physical Properties ◽  
Elongation Factor ◽  
Gtpase Activity ◽  
Elongation Factor 1Α ◽  
Intrinsic Gtpase Activity

Adaptive convergent evolution of genome proofreading in SARS-CoV2: insights into the Eigen’s paradox

2021 ◽  
Author(s):  
Keerthic Aswin ◽  
Srinivasan Ramachandran ◽  
Vivek T Natarajan
Keyword(s):  
Convergent Evolution ◽  
Genome Stability ◽  
Evolutionary History ◽  
Rna Binding ◽  
Phylogenetic Analyses ◽  
Comparative Genome Analysis ◽  
The Family ◽  
History Of ◽  
Key Residues

AbstractEvolutionary history of coronaviruses holds the key to understand mutational behavior and prepare for possible future outbreaks. By performing comparative genome analysis of nidovirales that contain the family of coronaviruses, we traced the origin of proofreading, surprisingly to the eukaryotic antiviral component ZNFX1. This common recent ancestor contributes two zinc finger (ZnF) motifs that are unique to viral exonuclease, segregating them from DNA proof-readers. Phylogenetic analyses indicate that following acquisition, genomes of coronaviruses retained and further fine-tuned proofreading exonuclease, whereas related families harbor substitution of key residues in ZnF1 motif concomitant to a reduction in their genome sizes. Structural modelling followed by simulation suggests the role of ZnF in RNA binding. Key ZnF residues strongly coevolve with replicase, and the helicase involved in duplex RNA unwinding. Hence, fidelity of replication in coronaviruses is a result of convergent evolution, that enables maintenance of genome stability akin to cellular proofreading systems.

scholarly journals Database establishment for the secondary fungal DNA barcodetranslational elongation factor 1α(TEF1α)

Genome ◽  
2019 ◽  
Vol 62 (3) ◽  
pp. 160-169 ◽  
Author(s):  
Wieland Meyer ◽  
Laszlo Irinyi ◽  
Minh Thuy Vi Hoang ◽  
Vincent Robert ◽  
Dea Garcia-Hermoso ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Fungal Infections ◽  
Dna Barcode ◽  
Elongation Factor ◽  
Its Region ◽  
Reference Sequence ◽  
Diagnostic Tools ◽  
Reference Database ◽  
Elongation Factor 1Α ◽  
Fungal Dna

With new or emerging fungal infections, human and animal fungal pathogens are a growing threat worldwide. Current diagnostic tools are slow, non-specific at the species and subspecies levels, and require specific morphological expertise to accurately identify pathogens from pure cultures. DNA barcodes are easily amplified, universal, short species-specific DNA sequences, which enable rapid identification by comparison with a well-curated reference sequence collection. The primary fungal DNA barcode, ITS region, was introduced in 2012 and is now routinely used in diagnostic laboratories. However, the ITS region only accurately identifies around 75% of all medically relevant fungal species, which has prompted the development of a secondary barcode to increase the resolution power and suitability of DNA barcoding for fungal disease diagnostics. The translational elongation factor 1α (TEF1α) was selected in 2015 as a secondary fungal DNA barcode, but it has not been implemented into practice, due to the absence of a reference database. Here, we have established a quality-controlled reference database for the secondary barcode that together with the ISHAM-ITS database, forms the ISHAM barcode database, available online at http://its.mycologylab.org/ . We encourage the mycology community for active contributions.

scholarly journals Interaction of Elongation Factor-1α and Pleckstrin Homology Domain of Phospholipase C-γ1 with Activating Its Activity

2002 ◽  
Vol 277 (22) ◽  
pp. 19697-19702 ◽  
Author(s):  
Jong-Soo Chang ◽  
Heon Seok ◽  
Taeg-Kyu Kwon ◽  
Do Sik Min ◽  
Bong-Hyun Ahn ◽  
...  
Keyword(s):  
Phospholipase C ◽  
Elongation Factor ◽  
Pleckstrin Homology Domain ◽  
Pleckstrin Homology ◽  
Elongation Factor 1Α
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