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“#Researchers track origin of one of nature’s biggest killers” A global map detailing regions that report dengue to the World Health Organization as of 2014, overlaying the distribution of Aedes aegypti mosquitos. The latter includes most of Central and South America, all of Africa, South Asia and the Indian subcontinent, and most of Australia; regions…
“#Study could lead to power over the New World screwworm” In its adult stage, the New World screwworm appears harmless. But it’s at this stage that female insects lay eggs in wounds of warm-blooded animals. The insect’s pink tinge comes from powder. When sterile flies are released from a breeding facility in Panama, they are…
“#Learning how to battle harmful algae blooms” This photograph was taken before the coronavirus (COVID-19) pandemic prompted rules on physical distancing and the need to wear masks. UD professor Kathy Coyne (right) of the College of Earth, Ocean, and Environment (CEOE), and director of the Delaware Sea Grant program, is working to increase the knowledge…
“#Genome sequencing reveals potential endangered mechanisms of alpine herb in China” Whole-genome analyses for Kingdonia. Credit: WBG Kingdonia uniflora Balf. f. and W.W. Sm. (Circaeasteraceae, Ranunculales), an alpine herb, has a very narrow distribution in the world and is listed as an endangered species in China. The habitat of it represents an ecological environment of…
“#Novel major locus regulates beak evolution of ground tit” Fig. Comparison of beak morphology across 14 parid species. Credit: IOZ Classical quantitative genetics has found that most phenotypes are polygenic traits. Under this polygenic model, natural selection often acts on many loci simultaneously, resulting in the combination of a few loci with major effects and…
“#Tracking the spread of mosquito insecticide resistance across Africa” Deltamethrin Resistance in Anopheles gambiae s.l. mosquitoes. Credit: Penelope Hancock In a step toward better control of the mosquitoes that transmit malaria, researchers have mapped the patterns of insecticide resistance in Anopheles gambiae mosquitoes across Africa. The new study, published June 25, 2020 in the open-access…