Results 41 to 50 of about 514 (133)

Evolutionary rates of mitochondrial sequences and gene orders in Spirurina (Nematoda) are episodic but synchronised

open access: yesWater Biology and Security, 2022
In contrast to highly conserved mitogenomic architecture in most metazoan lineages, which indicates that rearrangement events are generally strongly selected against, a limited number of often unrelated lineages exhibit highly elevated architectural ...
Hong Zou   +8 more
doaj   +1 more source

How Host Phylogeny and Diet Shape the Specificity and Specificity Diversity of Animal Gut Microbiomes

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 1, February 2026.
By identifying unique/enriched microbial species across taxa and diet types in 318 animal species with our SSD (specificity and specificity diversity) framework, we demonstrated that host phylogeny and diet are joint drivers of microbial specificity compositional heterogeneity, potentially linking the macroecological pattern of phylosymbiosis with the ...
Zhanshan (Sam) Ma
wiley   +1 more source

Composition of Epiphytic Microbial Communities in Gametophytes and Sporophytes of Undaria pinnatifida

open access: yesProgress in Fishery Sciences, 2023
Undaria pinnatifida is a brown alga with high economic value. Its annual production is second only to Saccharina japonica among economically important brown algae in China.
Yuqian LI, Tifeng SHAN, Shaojun PANG
doaj   +1 more source

Using fecal DNA metabarcoding to investigate the animal diet of black rails, yellow rails, and soras

open access: yesWildlife Society Bulletin, Volume 49, Issue 3, September 2025.
We used fecal DNA metabarcoding to investigate the diet of yellow rails, Eastern black rails, and sora during the non‐breeding season. Arthropods, particularly ants, were prevalent in their diets, suggesting possible interactions with invasive red imported fire ants.
Christopher J. Butler   +4 more
wiley   +1 more source

Understanding the genetics of sex determination in insects and its relevance to genetic pest management

open access: yesInsect Molecular Biology, Volume 34, Issue 3, Page 363-380, June 2025.
In insect sex determination pathways, the primary signals may vary within and between insect orders; however, the relay and terminal genes are more conserved. The upstream components of insect sex determination pathways ensure the downstream components are sex‐specifically spliced to regulate the development of male and female‐specific traits in a sex ...
Jade S. Ashmore   +3 more
wiley   +1 more source

Persistent Gaps and Errors in Reference Databases Impede Ecologically Meaningful Taxonomy Assignments in 18S rRNA Studies: A Case Study of Terrestrial and Marine Nematodes

open access: yesEnvironmental DNA, Volume 7, Issue 2, March/April 2025.
Public molecular databases (i.e., SILVA, EUKARYOME, BOLD) for most microbial metazoan phyla (nematodes, tardigrades, kinorhynchs, etc.) are sparsely populated, negatively impacting our ability to assign ecologically meaningful taxonomy to these understudied groups.
Alejandro De Santiago   +6 more
wiley   +1 more source

Environmental niche models improve species identification in DNA barcoding

open access: yesMethods in Ecology and Evolution, Volume 15, Issue 12, Page 2343-2358, December 2024.
Abstract Recent advances in DNA barcoding have immeasurably advanced global biodiversity research in the last two decades. However, inherent limitations in barcode sequences, such as hybridization, introgression or incomplete lineage sorting can lead to misidentifications when relying solely on barcode sequences.
Cai‐qing Yang   +6 more
wiley   +1 more source

Unclear host taxonomy hinders parasite studies: An up‐to‐date checklist of the protozoan and metazoan parasites of Phoxinus minnows (Teleostei: Leuciscidae)

open access: yesJournal of Fish Biology, Volume 105, Issue 6, Page 1501-1539, December 2024.
Abstract Phoxinus minnows are small freshwater fish found throughout Eurasia. The taxonomy of this genus is still under investigation, and new species are regularly described. They are frequently introduced outside their native range due to their use as live bait for angling, and such fish introductions can have diverse impacts on the recipient areas ...
Anaïs Esposito   +3 more
wiley   +1 more source

Geochemical and microbiological variability of aerobic and anaerobic sediments along a bifurcated sulphate‐saturated brine spring in western Canada

open access: yesThe Depositional Record, Volume 10, Issue 5, Page 637-669, November 2024.
A tufa mound developed in north‐east Alberta is characterised by an unusual emplacement of a gypsum caprock. This two‐tiered architecture resulted from the bicarbonate‐saturated groundwater flow along Upper Devonian limestone being redirected deeper and encountering the halite–anhydrite dissolution trend within the underlying Prairie Evaporite ...
Paul L. Broughton
wiley   +1 more source

A unique genetic code change in the mitochondrial genome of the parasitic nematode Radopholus similis

open access: yesBMC Research Notes, 2009
Background Mitochondria (mt) contain their own autonomously replicating DNA, constituted as a small circular genome encoding essential subunits of the respiratory chain.
Van Leeuwen Thomas   +3 more
doaj   +1 more source

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