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Puerto Madryn: Dos arqueólogos submarinistas desarrollaron unas fichas que permiten interpretar naufragios históricos

Puerto Madryn: Dos arqueólogos submarinistas desarrollaron unas fichas que permiten interpretar naufragios históricos
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United statesCristian murrayGuillermo redingInstitute of evolutionNational instituteTwo archaeologistsSouthern ichthyologyWith cristian murrayஒன்றுபட்டது மாநிலங்களில்நிறுவனம் ஆஃப் பரிணாமம்தேசிய நிறுவனம்

Living as a social parasite leads to genetic impoverishment in ants

Münster (upm/jah) Three-dimensional surface reconstructions of the brains and head capsules of host species A. heyeri (top) and the socially parasitic species P. argentina. The ants olfactory lobes are marked in yellow. © Lukas Schrader Researchers compare genomes of ants and their hosts / Publication in Nature Communications Some species of ants make life easier for themselves: they live in the colonies of other ant species, exploiting their hosts’ resources. This form of social parasitism has evolved several times independently in ants. An international team of researchers headed by biologist Dr. Lukas Schrader at the University of Münster has now shown that these social parasites have lost some parts of their genomes. This so-called genome erosion impacted genes particularly important for non-parasitic ants, such as olfactory receptors functioning in chemical communication. These findings indicate that the evolution of social parasitism follows similar evolutiona

United statesCharles darwinLukas schraderAuguste forelNature communicationsPublication in nature communicationsLundbeck foundationEuropean research councilInstitute of evolutionUs national science foundationScience foundationWu münsterஒன்றுபட்டது மாநிலங்களில்சார்லஸ் டார்வின்இயற்கை தகவல்தொடர்புகள்வெளியீடு இல் இயற்கை தகவல்தொடர்புகள்

Not Mush-Room for Error

Not Mush-Room for Error A new Israeli study reveals the threats currently facing wild mushroom populations in Israel. What needs to be done, and what needs to change in order to ensure their presence and diversity for the climatically grim years ahead? As spring continues to settle in, the outdoor temperatures are gradually getting warmer tempting us to venture outside, take in the natural landscape, and escape the indoor lifestyles we have grown so accustomed to throughout the Coronavirus pandemic. The time spent in nature will allow people to notice the little things like wild mushrooms, for example, growing adjacent to hiking trails and taking on a variety of shapes and features.

University of haifaH efaDalia levinsonSalomon wasserShamir institute for researchInternational union for conservation of natureSociety for the protection of natureShamir research instituteInstitute of evolutionInternational unionGlobal fungal red listShamir instituteபல்கலைக்கழகம் ஆஃப் ஹைஃபாஏச் எபாசர்வதேச தொழிற்சங்கம் க்கு பாதுகாப்பு ஆஃப் இயற்கைசமூகம் க்கு தி ப்ரொடெக்ஶந் ஆஃப் இயற்கை

New proteins out of nothing

E-Mail IMAGE: Regions of the protein s flexibility: not very flexible (blue), moderately flexible (green/yellow) and highly flexible (red). However, both the central alpha helix and the N-terminus (start of the protein) display. view more Credit: Adam Damry Proteins are the key component in all modern forms of life. Haemoglobin, for example, transports the oxygen in our blood; photosynthesis proteins in the leaves of plants convert sunlight into energy; and fungal enzymes help us to brew beer and bake bread. Researchers have long been examining the question of how proteins mutate or come into existence in the course of millennia. That completely new proteins - and, with them, new properties - can emerge practically out of nothing, was inconceivable for decades, in line with what the Greek philosopher Parmenides said: Nothing can emerge from nothing (ex nihilo nihil fit). Working with colleagues from the USA and Australia, researchers from the University of Münster

College of the holy crossUnited statesAustralian capital territoryGeoff findlayPrajal patelAdam damryColin jacksonErich bornberg bauerAndreas langeBrennen heamesNature communicationsAustralian national universityInstitute of evolutionHoly crossMolecular biologyகல்லூரி ஆஃப் தி பரிசுத்த குறுக்கு

New proteins out of nothing

© Mareike Kopping New proteins “out of nothing” International team of researchers investigates how evolution forms the structure and function of a newly emerged protein in flies Proteins are the key component in all modern forms of life. Haemoglobin, for example, transports the oxygen in our blood; photosynthesis proteins in the leaves of plants convert sunlight into energy; and fungal enzymes help us to brew beer and bake bread. Researchers have long been examining the question of how proteins mutate or come into existence in the course of millennia. That completely new proteins – and, with them, new properties – can emerge practically out of nothing, was inconceivable for decades, in line with what the Greek philosopher Parmenides said: “Nothing can emerge from nothing”

College of the holy crossUnited statesAustralian capital territoryGeoff findlayPrajal patelAdam damryAndreas langeColin jacksonErich bornberg bauerBrennen heamesNature communicationsAustralian national universityInnovation framework programme noInstitute of evolutionMareike koppingHoly cross