Results 21 to 30 of about 1,889 (181)

Pest categorisation of Xylella taiwanensis. [PDF]

open access: yesEFSA J, 2023
Abstract The EFSA Plant Health Panel performed a pest categorisation of Xylella taiwanensis, a Gram‐negative bacterium belonging to the Xanthomonadaceae. The pathogen is a well‐defined taxonomic entity, and it is the causal agent of the pear leaf scorch. X.
EFSA Panel on Plant Health (PLH)   +24 more
europepmc   +2 more sources

The loss of the urea cycle and ornithine metabolism in different insect orders: An omics approach. [PDF]

open access: yesInsect Mol Biol
Among urea cycle enzymes, only the nitric oxide synthase gene is universally present across insect genomes. All Hemiptera species lack the enzymes needed to convert citrulline to arginine, and some also lack the pathway from arginine to ornithine. Putrescine and spermidine synthesis is conserved in all insects, but aphids lack the capability to produce
Martins JCS   +7 more
europepmc   +2 more sources

Comparative Analysis of Mitogenomes in Leafhopper Tribe Deltocephalini (Hemiptera: Cicadellidae: Deltocephalinae): Structural Conservatism and Phylogeny. [PDF]

open access: yesEcol Evol
In this study, we sequenced the complete mitogenomes of 14 species belonging to four genera of tribe Deltocephalini from China and compared them with the two previously reported mitogenomes for this tribe. Phylogenetic analysis of different combinations of protein‐coding and ribosomal genes using maximum likelihood and Bayesian inference under ...
Xie B   +4 more
europepmc   +2 more sources

Till evolution do us part: The diversity of symbiotic associations across populations of Philaenus spittlebugs

open access: yesEnvironmental Microbiology, Volume 25, Issue 11, Page 2431-2446, November 2023., 2023
Top: map showing sampling sites of various Philaenus spittlebugs. Bottom: FISH detection of Sodalis (yellow) and Sulcia (red) symbionts. Abstract Symbiotic bacteria have played crucial roles in the evolution of sap‐feeding insects and can strongly affect host function. However, their diversity and distribution within species are not well understood; we
Michał Kolasa   +4 more
wiley   +1 more source

Elevational gradient of Hemiptera (Heteroptera, Auchenorrhyncha) on a tropical mountain in Papua New Guinea [PDF]

open access: yesPeerJ, 2015
Malaise trap sampling of Hemiptera (Heteroptera; Auchenorrhyncha) was conducted at 500 m intervals along an elevational gradient from 200 m to 3,700 m on the east slope of Mount Wilhelm, Madang Province, Papua New Guinea.
Maxime Le Cesne   +2 more
doaj   +2 more sources

Elucidating the trophic role of Tapinoma ibericum (Hymenoptera: Formicidae) as a potential predator of olive pests

open access: yesJournal of Applied Entomology, Volume 147, Issue 8, Page 667-675, September 2023., 2023
Abstract Ants play a key role in improving the structure and function of local communities. They interact with plants, herbivores, predators and parasitoids and are able to change their trophic role in space and time. These features, however, make it difficult to establish the net trophic role of ants in agroecosystems.
Hugo Alejandro Álvarez   +6 more
wiley   +1 more source

Molecular phylogeny of Cercopidae (Hemiptera, Cercopoidea)

open access: yesZoologica Scripta, Volume 52, Issue 5, Page 494-516, September 2023., 2023
Abstract With 175 described genera and 1556 described species, Family Cercopidae is currently divided into two subfamilies: the paraphyletic Cercopinae and the monophyletic Ischnorhininae. This study, with emphasis on the family Cercopidae, is in line with the extensive work of Cryan and Svenson which is the first phylogenetic study testing the ...
Elorde S. Crispolon Jr.   +2 more
wiley   +1 more source

A molecular phylogeny of Hemiptera inferred from mitochondrial genome sequences. [PDF]

open access: yesPLoS ONE, 2012
Classically, Hemiptera is comprised of two suborders: Homoptera and Heteroptera. Homoptera includes Cicadomorpha, Fulgoromorpha and Sternorrhyncha. However, according to previous molecular phylogenetic studies based on 18S rDNA, Fulgoromorpha has a ...
Nan Song, Ai-Ping Liang, Cui-Ping Bu
doaj   +1 more source

Mitogenomic phylogeny of Typhlocybinae (Hemiptera: Cicadellidae) reveals homoplasy in tribal diagnostic morphological traits

open access: yesEcology and Evolution, Volume 12, Issue 6, June 2022., 2022
We studied the evolutional relationships of Typhlocybinae based on 47 typhlocybine mitogenomic dataset representing all currently recognized tribes. The Ancestral character state reconstruction suggests that some morphological characters (fore‐ and hind wing patterns) traditionally considered important for diagnosing typhlocybine tribes are homoplastic.
Bin Yan   +5 more
wiley   +1 more source

New State Records For Some Predatory And Parasitic True Bugs (Heteroptera: Cimicomorpha) of the United States [PDF]

open access: yes, 2020
Forty new state records, distributed among Anthocoridae, Cimicidae, Lasiochilidae, Lyctocoridae, Nabidae, and Reduviidae, are reported for 25 species of Cimicomorpha found in the United ...
Swanson, Daniel R
core   +2 more sources

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