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Genomic Footprints of Hybridisation in North Atlantic Eels (Anguilla anguilla and A. rostrata).
Mol Ecol
January 2025
Department of Biology, Aarhus University, Aarhus C, Denmark.
Understanding interspecific introgressive hybridisation and the biological significance of introgressed variation remains an important goal in population genomics. European (Anguilla anguilla) and American eel (A. rostrata) represent a remarkable case of hybridisation.
View Article and Find Full Text PDFGenomic Resources for the Scuttle Fly : A Model Organism for Comparative Developmental Studies in Flies.
bioRxiv
January 2025
University of Chicago, Dept. of Organismal Biology and Anatomy, 1027 East 57 Street, Chicago, Illinois 60637, USA.
The order Diptera (true flies) holds promise as a model taxon in evolutionary developmental biology due to the inclusion of the model organism, , and the ability to cost-effectively rear many species in laboratories. One of them, the scuttle fly (Phoridae) has been used in evolutionary developmental biology for 30 years and is an excellent phylogenetic intermediate between fruit flies and mosquitoes but remains underdeveloped in genomic resources. Here, we present a chromosome-level assembly and annotation of and transcriptomes of 9 embryonic and 4 postembryonic stages.
View Article and Find Full Text PDFEvolutionary divergence between homologous X-Y chromosome genes shapes sex-biased biology.
Nat Ecol Evol
January 2025
Section on Developmental Neurogenomics, Human Genetics Branch, NIMH IRP, NIH, Bethesda, MD, USA.
Sex chromosomes are a fundamental aspect of sex-biased biology, but the extent to which homologous X-Y gene pairs ('the gametologs') contribute to sex-biased phenotypes remains hotly debated. Although these genes tend to exhibit large sex differences in expression throughout the body (XX females can express both X members, and XY males can express one X and one Y member), there is conflicting evidence regarding the degree of functional divergence between the X and Y members. Here we develop and apply co-expression fingerprint analysis to characterize functional divergence between the X and Y members of 17 gametolog gene pairs across >40 human tissues.
View Article and Find Full Text PDFChromosome-scale genome dynamics reveal signatures of independent haplotype evolution in the ancient asexual mite .
Sci Adv
January 2025
Institute of Zoology, University of Cologne, Cologne, Germany.
Some unique asexual species persist over time and contradict the consensus that sex is a prerequisite for long-term evolutionary survival. How they escape the dead-end fate remains enigmatic. Here, we generated a haplotype-resolved genome assembly on the basis of a single individual and collected genomic data from worldwide populations of the parthenogenetic diploid oribatid mite to identify signatures of persistence without sex.
View Article and Find Full Text PDFGenomic analyses reveal high diversity and rapid evolution of within a neonatal intensive care unit in Delhi, India.
Antimicrob Agents Chemother
January 2025
Medical Mycology Unit, Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India.
causes life-threatening infections in immunocompromised hosts, including hospitalized neonates. This pathogen is intrinsically resistant to fluconazole, while uncommon strains resistant to multiple antifungal drugs, including voriconazole, amphotericin B, and echinocandins, have also been reported from healthcare environments. Thus, understanding how spread, persist, and adapt to healthcare settings could help us develop better infection management strategies.
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