Results 141 to 150 of about 2,513 (172)

Spider venom peptides Ht1a and Gg1a are toxic to honeybee parasite Varroa destructor by topical application

Herzig V, Guo S, Eagles D, Pineda S, Robinson A, Andersson A, Deuis J, Dekan Z, Alewood P, Undheim E, Lammens M, Bosmans F, Vetter I, King G, Dietemann V.   +14 more
europepmc   +1 more source

Dated phylogenetic studies of the southernmost American buthids (Scorpiones; Buthidae) [PDF]

Molecular Phylogenetics and Evolution, 2017
A dated molecular phylogeny of the southernmost American species of the family Buthidae, based on two nuclear and two mitochondrial genes, is presented. Based on this study, analyzed species of the subgenus Tityus (Archaeotityus) are neither sister to the remaining species of the genus Tityus, nor are they closely related to the New World microbuthids ...
Andres A Ojanguren-Affilastro, Renzo S Adilardi, Camilo I Mattoni   +2 more
exaly   +5 more sources

Evidence for recombination in scorpion mitochondrial DNA (Scorpiones: Buthidae) [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2005
There has been very little undisputed evidence for recombination in animal mitochondrial DNA (mtDNA) provided so far. Previous unpublished results suggestive of mtDNA recombination in the scorpion family Buthidae, together with cytological evidence for a unique mechanism of mitochondrial fusion in that family, prompted us to investigate this group in ...
Benjamin Gantenbein, VÍCTOR Fet, François Balloux   +2 more
exaly   +3 more sources

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Molecular diversity of Chaerilidae venom peptides reveals the dynamic evolution of scorpion venom components from Buthidae to non-Buthidae

Journal of Proteomics, 2013
The scorpion family Chaerilidae is phylogenetically differentiated from Buthidae. Their venom components are not known, and the evolution of the venom components is not well understood. Here, we performed a transcriptome analysis of the venom glands from two scorpion species, Chaerilus tricostatus and Chaerilus tryznai. Fourteen types of venom peptides
Yawen, He, Ruiming, Zhao, Zhiyong, Di, Zhongjie, Li, Xiaobo, Xu, Wei, Hong, Yingliang, Wu, Huabin, Zhao, Wenxin, Li, Zhijian, Cao   +9 more
openaire   +2 more sources

Cost of venom regeneration in Parabuthus transvaalicus (Arachnida: Buthidae)

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2007
Scorpion venom has many components, but is mainly made up of water, salts, small molecules, peptides, and proteins. One can reasonably assume that the production and storage of this complex secretion is an expensive metabolic investment. However, to date, no study has addressed the costs associated with the regeneration of venom by scorpions.
Zia, Nisani, Stephen G, Dunbar, William K, Hayes   +2 more
openaire   +2 more sources

Exploration of Refuge Preference in the Arizona Bark Scorpion (Scorpiones: Buthidae)

Environmental Entomology, 2014
The ongoing difficulty in understanding how Centruroides sculpturatus (Ewing) uses the built environment has prompted this study in exploring refuge choices in a school environment and in laboratory behavioral assays. Radio telemetry tags were used at an urban site heavily populated with C. sculpturatus to track scorpions for a period of 21 d from 1 to
Christopher Stephen, Bibbs, Sarah Elizabeth, Bengston, Dawn H, Gouge   +2 more
openaire   +2 more sources

Venom-spraying behavior of the scorpion Parabuthus transvaalicus (Arachnida: Buthidae)

Behavioural Processes, 2015
Many animals use chemical squirting or spraying behavior as a defensive response. Some members of the scorpion genus Parabuthus (family Buthidae) can spray their venom. We examined the stimulus control and characteristics of venom spraying by Parabuthus transvaalicus to better understand the behavioral context for its use.
Zia, Nisani, William K, Hayes
openaire   +2 more sources

The Genus Centruroides (Buthidae) and Its Venom

1978
In North America scorpions of medical importance belong to the genus Centruroides Marx (1889) of the family Buthidae (Simon, 1879) and the superfamily Buthoidea (Birula, 1917). The name Centururus is a synonym for Centruroides but the latter is correct as explained by Pocock (1920f), who is also quoted by Stahnke (1971).
openaire   +1 more source

First molecular phylogeny of scorpions of the family Buthidae from India

Mitochondrial DNA Part A, 2016
Scorpions of the family Buthidae are widespread species in India. While studies are available on diversity and distribution of Indian buthid scorpions, no information is available on the phylogenetic relationships among the members of the family, within India and Asia in general.
Vivek, Suranse, Nitin S, Sawant, Shruti V, Paripatyadar, Keerthi, Krutha, Mandar S, Paingankar, Anand D, Padhye, D B, Bastawade, Neelesh, Dahanukar   +7 more
openaire   +2 more sources

Mechanisms of karyotype evolution in the Brazilian scorpions of the subfamily Centruroidinae (Buthidae)

Genetica, 2018
The recently-revised subfamily Centruroidinae is part of the New World clade of buthid scorpions. In this study, we analyzed the cytogenetic characteristics of nine of the 10 Brazilian centruroidines, and one undescribed species of the genus Ischnotelson, using a phylogenetic approach to determine the chromosomal rearrangements responsible for the ...
Crislaine Vanessa Ubinski, Leonardo Sousa Carvalho, Marielle Cristina Schneider   +2 more
openaire   +2 more sources