Results 51 to 60 of about 1,505 (204)

A multigene approach to identify the scorpion species (Arachnida: Scorpiones) of Colima, Mexico, with comments on their venom diversity

open access: yesRevista Mexicana de Biodiversidad
Scorpion species diversity in Colima was investigated with a multigene approach. Fieldwork produced 34 lots of scorpions that were analyzed with 12S rDNA, 16S rDNA, COI, and 28S rDNA genetic markers.
Edmundo González-Santillán   +5 more
doaj   +1 more source

Alacranes (Arachnida: Scorpiones) de Frontera Corozal, en la selva lacandona, Chiapas, México, con la descripción de una nueva especie de Diplocentrus (Diplocentridae)

open access: yesRevista Mexicana de Biodiversidad, 2007
SE REALIZARON RECOLECTAS DIURNAS Y NOCTURNAS EN LA COMUNIDAD DE FRONTERA COROZAL, MUNICIPIO DE OCOSINGO, CHIAPAS, MÉXICO. SE REGISTRAN 3 ESPECIES DE ESCORPIONES, 2 DE LA FAMILIA BUTHIDAE Y UNA DE LA FAMILIA DIPLOCENTRIDAE.
ÓSCAR F. FRANCKE B.
doaj   +1 more source

Comparative Genomics of Sex‐Determination‐Related Genes Reveals Shared Evolutionary Patterns Between Bivalves and Mammals, but Not Fruit Flies

open access: yesMolecular Ecology, Volume 34, Issue 20, October 2025.
ABSTRACT The molecular basis of sex determination (SD), while being extensively studied in model organisms, remains poorly understood in many animal groups. Bivalves, a diverse class of molluscs with a variety of reproductive modes, represent an ideal yet challenging clade for investigating SD and the evolution of sexual systems.
Filippo Nicolini   +4 more
wiley   +1 more source

Una especie nueva de alacrán del género Centruroides (Scorpiones: Buthidae) del noroeste de México

open access: yesRevista Mexicana de Biodiversidad, 2019
Se describe Centruroides lauriadnae sp. n. del estado de Sonora, México, perteneciente al grupo de los llamados alacranes “rayados” dentro del género (sensu Hoffmann, 1932). Se compara con las 2 especies del género registradas para Sonora: C. pallidiceps
Javier Ponce-Saavedra, Oscar F. Francke
doaj   +1 more source

Invertebrate Bile Acid‐Sensitive Ion Channels and Their Emergence in Bilateria

open access: yesThe FASEB Journal, Volume 39, Issue 8, 30 April 2025.
This graphical abstract presents the evolutionary distribution and functional characteristics of bile acid‐sensing ion channels (BASICs) across bilaterians. A phylogenetic tree illustrates the presence of BASICs in diverse groups, extending beyond previously established mammalian findings.
Josep Martí‐Solans   +4 more
wiley   +1 more source

Neutralizing Effects of Mimosa tenuiflora Extracts against Inflammation Caused by Tityus serrulatus Scorpion Venom

open access: yesBioMed Research International, Volume 2014, Issue 1, 2014., 2014
Scorpion bite represents a significant and serious public health problem in certain regions of Brazil, as well as in other parts of the world. Inflammatory mediators are thought to be involved in the systemic and local immune response induced by Tityus serrulatus scorpion envenomation.
Mariana Angélica Oliveira Bitencourt   +8 more
wiley   +1 more source

Inhibition of cGMP‐Signalling Rescues Retinal Ganglion Cells From Axotomy‐Induced Degeneration

open access: yesJournal of Neurochemistry, Volume 169, Issue 4, April 2025.
Retinal ganglion cell (RGC) axons are myelinated only beyond the lamina cribrosa, that is, when leaving the eye. Axotomy‐induced RGC degeneration is likely to be related to excessive nitric oxide (NO) production, leading to an over‐production of cGMP, over‐activation of protein kinase G (PKG) and excessive phosphorylation of target proteins, such as ...
Katia Ihadadene   +4 more
wiley   +1 more source

Non‐gonadal expression of piRNAs is widespread across Arthropoda

open access: yesFEBS Letters, Volume 599, Issue 1, Page 3-18, January 2025.
PIWI‐interacting RNAs (piRNAs) are known to protect the germline genome from transposable elements. Recently, evidence for their non‐gonadal expression has begun to emerge in some species. In this Perspective article, we combine an extensive literature review with a large analysis of transcriptomic data across arthropod species to investigate non ...
Takahisa Yamashita   +6 more
wiley   +1 more source

Descripción de una especie nueva de alacrán con importancia médica del género Centruroides (Scorpiones: Buthidae) del estado de Colima, México Description of a new species of scorpion of medical importance of the genus Centruroides (Scorpiones: Buthidae) from the state of Colima, Mexico

open access: yesRevista Mexicana de Biodiversidad, 2009
Se describe Centruroides hirsutipalpus sp. nov. de la región de Minatitlán, Colima. Se compara con las especies morfológica y geográficamente más cercanas, C. elegans Thorell y C.
Javier Ponce-Saavedra, Oscar F. Francke
doaj  

Three Novel Spider Genomes Unveil Spidroin Diversification and Hox Cluster Architecture: Ryuthela nishihirai (Liphistiidae), Uloborus plumipes (Uloboridae) and Cheiracanthium punctorium (Cheiracanthiidae)

open access: yesMolecular Ecology Resources, Volume 25, Issue 1, January 2025.
ABSTRACT Spiders are a hyperdiverse taxon and among the most abundant predators in nearly all terrestrial habitats. Their success is often attributed to key developments in their evolution such as silk and venom production and major apomorphies such as a whole‐genome duplication.
Yannis Schöneberg   +11 more
wiley   +1 more source

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