Results 31 to 40 of about 2,796,267 (391)

Micro-Computed Tomography Reveals a Remarkable Twin Intromittent Organ in Spiders – A Novelty for Arachnids With Direct Sperm Transfer

open access: yesFrontiers in Ecology and Evolution, 2021
The modification of male pedipalps into secondary sexual intromittent organs is one of the hallmark characteristics of spiders, yet understanding the development and evolution of male genitalia across the order remains a challenging prospect. The embolus
Michael G. Rix   +4 more
doaj   +1 more source

Recovering the genomes hidden in museum wet collections

open access: yesMolecular Ecology Resources, 2022
Natural history museums hold vast collections of biomaterials. The collections in museums, often painstakingly sampled, are largely unexplored treasures that may help us better understand biodiversity on the planet.
Irune Ruiz-Gartzia   +3 more
semanticscholar   +1 more source

The emerging vertebrate model species for neurophysiological studies is Danionella cerebrum, new species (Teleostei: Cyprinidae)

open access: yesScientific Reports, 2021
The four described species of Danionella are tiny, transparent fishes that mature at sizes between 10–15 mm, and represent some of the most extreme cases of vertebrate progenesis known to date. The miniature adult size and larval appearance of Danionella,
Ralf Britz   +2 more
doaj   +1 more source

The complete mitochondrial genomes of two Japanese endemic Satyrinae butterflies, Neope goschkevitschii and Lethe sicelis (Lepidoptera, Nymphalidae)

open access: yesMitochondrial DNA. Part B. Resources, 2020
Neope goschkevitschii and Lethe sicelis are endemic Satyrinae butterflies in mainland Japan, which belongs to the Palearctic realm. In this study, we determined the mitochondrial genomes of these two species.
Nobuaki Nagata   +2 more
doaj   +1 more source

Object Investigation of Industrial Heritage: The Forging and Metallurgy Shop in Taipei Railway Workshop

open access: yesApplied Sciences, 2020
As a special plant for train maintenance in northern Taiwan, the Taipei Railway Workshop was founded in 1885 and moved in 2011, reflecting the changes in Taiwan’s history, transportation, and industrial technology.
Yu-Hsun Chen   +7 more
doaj   +1 more source

Morphological evolution in Hyles Hübner, 1819 hawkmoths (Lepidoptera, Sphingidae): reconstructing the ancestral Hyles habitus [PDF]

open access: yesNota Lepidopterologica, 2020
Molecular phylogenetic studies suggest that similar wing and body patterns in the hawkmoth genus Hyles Hübner, [1819] do not necessarily reflect a close phylogenetic relationship. To improve our understanding of morphological evolution in these organisms,
Anna K. Hundsdoerfer, Ian J. Kitching
doaj   +3 more sources

Investigation of ancient DNA to enhance natural history museum collections: misidentification of smooth-coated otter (Lutrogale perspicillata) specimens across multiple museums

open access: yes, 2020
Historical and modern natural museum collections are storehouses of extraordinary value for scientific research in a wide range of fields. Recent advances in molecular biotechnology (e.g., next generation genomics) have increased the range of collection ...
Filippo Barbanera   +4 more
semanticscholar   +1 more source

Functional characterization of the Hyles euphorbiae hawkmoth transcriptome reveals strong expression of phorbol ester detoxification and seasonal cold hardiness genes

open access: yesFrontiers in Zoology, 2018
Background The European spurge hawkmoth, Hyles euphorbiae (Lepidoptera, Sphingidae), has been intensively studied as a model organism for insect chemical ecology, cold hardiness and evolution of species delineation.
M. Benjamin Barth   +8 more
doaj   +1 more source

Library preparation method and DNA source influence endogenous DNA recovery from 100‐year‐old avian museum specimens

open access: yesEcology and Evolution, 2023
Museum specimens collected prior to cryogenic tissue storage are increasingly being used as genetic resources, and though high‐throughput sequencing is becoming more cost‐efficient, whole genome sequencing (WGS) of historical DNA (hDNA) remains ...
Amie E. Settlecowski   +2 more
doaj   +1 more source

Population regulation in Gyrodactylus salaris – Atlantic salmon (Salmo salar L.) interactions: testing the paradigm

open access: yesParasites & Vectors, 2015
Background Gyrodactylus salaris is a directly transmitted ectoparasite that reproduces in situ on its fish host. Wild Norwegian (East Atlantic) salmon stocks are thought to be especially susceptible to the parasite due to lack of co-adaptation, contrary ...
Raúl Ramírez   +2 more
doaj   +1 more source

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