Search results for Genetics

Molecular & Computational biology Jun 25, 2024

Study identifies gene targets to combat cognitive decline

Researchers have identified the possible mechanisms by which long-lived mutants of the model system Caenorhabditis elegans are able to maintain learning and memory later in life while some experience cognitive decline.

Evolution Jun 25, 2024

Researchers illuminate the evolution of firefly lights

The leading hypothesis for the origin of firefly lights has been overturned by a genomic analysis. It had been posited that the bright lights emitted by many species in the Lampyridae family of beetles—better known as fireflies—first ...

Molecular & Computational biology Jun 25, 2024

Squeezing more flavor: Genetic study optimizes citric acid in tomatoes

Citric acid (CA) is a flavor-enhancing compound in tomatoes that also serves as a metabolic pathway mediator. Despite its importance, the genetic and environmental interplay affecting its levels has been a puzzle, difficult ...

Molecular & Computational biology Jun 25, 2024

Heat and disease: The genetic tug-of-war in pepper immunity

Plants face simultaneous challenges from pathogens and environmental stresses, especially in tropical and subtropical regions. Pathogens trigger immune responses through specific receptors, while high temperatures activate ...

Plants & Animals Jun 25, 2024

Hidden mechanisms behind hermaphroditic plant self-incompatibility revealed

A new study presents an evolutionary-biophysical model that sheds new light on the evolution of the collaborative non-self recognition self-incompatibility, a genetic mechanism in plants that prevents self-fertilization and ...

Cell & Microbiology Jun 25, 2024

Global South health care practices contribute to spread of antimicrobial resistance across the world, study suggests

Many bacteria resistant to multiple antibiotics originate in Pakistan and other parts of the Indian subcontinent. Infections caused by these bacteria are challenging to treat; longer treatment with broad-spectrum antibiotics ...

Ecology Jun 25, 2024

In a world-first, researchers map a 4,200 km transatlantic flight of the painted lady butterfly

In October 2013, Gerard Talavera, a researcher from the Botanical Institute of Barcelona at CSIC, made a surprising discovery of painted lady butterflies on the Atlantic beaches of French Guiana—a species not typically ...

Biotechnology Jun 24, 2024

Researchers develop RNA-targeting technology for precisely manipulating parts of human genes

Researchers at the University of Toronto have harnessed a bacterial immune defense system, known as CRISPR, to efficiently and precisely control the process of RNA splicing. The technology opens the door to new applications, ...

Environment Jun 24, 2024

Most plastics are made from fossil fuels and end up in the ocean, but marine microbes can't degrade them

Marine plastic pollution is a massive environmental issue, with a plastic smog of an estimated 170 trillion particles afloat in the world's oceans. This highlights how urgently we need to develop strategies to mitigate this ...

Archaeology Jun 24, 2024

What the 3.2 million-year-old Lucy fossil reveals about nudity and shame

Fifty years ago, scientists discovered a nearly complete fossilized skull and hundreds of pieces of bone of a 3.2-million-year-old female specimen of the genus Australopithecus afarensis, often described as "the mother of ...

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