Su. Ku. Dogra’s Post

A decade-long study on water fleas challenges traditional views of evolution, showing that genetic variation can fluctuate even in stable environments, enhancing species' adaptability. 🧬 Dynamic Evolution: Research on Daphnia pulex reveals that natural selection isn't static, but changes over time, maintaining genetic diversity. 🌊 Water Flea Insights: This tiny crustacean, key to freshwater ecosystems, helps scientists explore how species adapt to environmental changes. 📊 Unexpected Variation: Even in constant environments, gene frequencies shift, providing crucial adaptability for future conditions. 🌿 Broader Implications: Findings may help predict how other species respond to rapid environmental shifts like climate change. #Evolution #Genetics #Biodiversity 🔍 Temporal Genetic Changes: The study found fluctuating selection pressures on individual genes, suggesting a more complex view of natural selection. 🌐 Genome-Wide Analysis: The decade of research involved nearly 1,000 DNA samples, shedding light on subtle evolutionary processes. 🌱 Ecological Resilience: These discoveries could inform conservation strategies as ecosystems face increasing human-driven stressors. https://lnkd.in/gfDahMW5

#primaryendosymbiosis #algae #nitrogenfixing It is a rare evolutionary event for an organism to incorporate another which eventually becomes an organelle, as in the development of mitochondria and chloroplasts. Here we see the formation of nitroplasts allowing direct nitrogen fixation from air in a specie of algae: https://lnkd.in/e-6RfZ5H

Evolution theory, first articulated by Charles Darwin in the 19th century, posits that all species of organisms arise and develop through natural selection. This process involves the gradual accumulation of small, heritable changes that increase an organism's ability to survive and reproduce in its environment. Over long periods, these incremental adaptations can lead to significant transformations and the emergence of new species. Central to this theory is the idea that genetic variations occur randomly, but those that confer a survival advantage become more common in the population over generations. Evolution explains the diversity of life on Earth, connecting all living organisms through a shared ancestry and illustrating how complex biological traits and ecosystems have evolved over millions of years. #biotechfacts #biotechnology #microbiology #biotechnologist #biologylife #biotechlife #scientist #sciencestory #scientistlife ______ Website: pawitrabiotech.com Instagram: @pawitrabiotech Email: [email protected]  Linkedin: PT Pawitra Jaya Sakti Biotek Phone: +62 85 607 124 424

In a new study, #scientists from #ArizonaStateUniversity and their collaborators studied #genetic changes in a #naturally isolated #population of #DaphniaPulex, a #species of #WaterFlea. This tiny #crustacean, nearly invisible to the naked eye, plays a #vital role in #freshwater #ecosystems and provides a valuable insight into #natural selection and #evolution.

Gene flow in giraffes and what it means for their conservation . Giraffes, with their bizarre body plan, have always held a special place in the minds of evolutionary biologists and non-experts alike. In a new study whole-genome sequencing data was used to investigate the evolutionary processes occurring within giraffes. In particular, the authors were interested in establishing whether different populations of giraffes really have been isolated from each other for extended periods of time, which is normally a requirement before new species can arise. #ScienceDailynews #InnovativeResearch #NextGenScience #ExploringFrontiers

EARLY IMMUNE SYSTEM IN LUCA? The nature of the last universal common ancestor (LUCA), its age and its impact on the Earth system have been the subject of vigorous debate across diverse disciplines, often based on disparate data and methods. Age estimates for LUCA are usually based on the fossil record, varying with every reinterpretation. The nature of LUCA’s metabolism has proven equally contentious, with some attributing all core metabolisms to LUCA, whereas others reconstruct a simpler life form dependent on geochemistry. Researchers infer that LUCA lived ~4.2 Ga (4.09–4.33 Ga) through divergence time analysis of pre-LUCA gene duplicates, calibrated using microbial fossils and isotope records under a new cross-bracing implementation. Phylogenetic reconciliation suggests that LUCA had a genome of at least 2.5 Mb (2.49–2.99 Mb), encoding around 2,600 proteins, comparable to modern prokaryotes. New results suggest LUCA was a prokaryote-grade anaerobic acetogen that possessed an early immune system. Although LUCA is sometimes perceived as living in isolation, we infer LUCA to have been part of an established ecological system. The metabolism of LUCA would have provided a niche for other microbial community members and hydrogen recycling by atmospheric photochemistry could have supported a modestly productive early ecosystem. The findings have been published in Nature: https://lnkd.in/eHwKeQe6

Humans are walking ecosystems and microbes rule their evolution: Microbes profoundly impact evolution, shaping traits alongside genes. Holobiont biology highlights how hosts and microbes form ecosystems. #HumanMicrobiome #WalkingEcosystems #MicrobialEvolution #HumanBiology #MicrobesMatter #EvolutionScience #HealthAndMicrobes #NatureWithin #HumanEcology #EarthDotCom #EarthSnap #Earth

𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵 𝘁𝗲𝗮𝗺 𝗱𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘀 ‘𝗶𝗺𝗽𝗼𝘀𝘀𝗶𝗯𝗹𝗲’ 𝘂𝗻𝗶𝗰𝗲𝗹𝗹𝘂𝗹𝗮𝗿 𝗼𝗿𝗴𝗮𝗻𝗶𝘀𝗺: All higher organisms such as fungi, plants, animals and humans consist of eukaryotic cells. These are cells that have a nucleus and organelles such as mitochondria. #Mitochondria supply eukaryotic cells with energy. In contrast to eukaryotes, prokaryotes are unicellular organisms. They have a simpler structure and are mostly significantly smaller than eukaryotes. They have no cell nucleus and no organelles such as mitochondria. 𝗥𝗲𝗮𝗱 𝗺𝗼𝗿𝗲: https://lnkd.in/et76HwmC Prof. Dr. christian jogler, Carmen Elisabeth Wurzbacher, Friedrich-Schiller-Universität Jena

Biology/Environment】 Two Closely Related Species of Haplodiploid Spider Mites Interact on Mountains Researchers at University of Tsukuba investigated secondary contact zones, hybridization, and genetic introgression in two closely related species of spider mites, haplodiploid organisms found at different elevations in Japan, a mountainous country. The results suggest that secondary contact zones are widespread in the mountainous areas from the Shizuoka Prefecture to Kyushu and that the two species mate in these regions but with low genetic introgression. Read more details here; https://lnkd.in/g3sfntSw Original Paper; https://lnkd.in/gKJ9D4gU

🌹 Every rose—and eggplant—has its thorn, thanks to #LonelyGenes New study uncovers the evolutionary origins of prickles in roses and other plants. The culprit? An ancient gene family called Lonely Guy, which has switched prickles on and off for 400 million years. 🍆 “Not only does this study tell us more about the evolution of prickles, it also provides us with insights into the mechanics of how to engineer plant developmental pathways for agricultural improvement,” said Vivian Irish, plant biologist and a professor in Yale University’s department of molecular biology. Read more: https://lnkd.in/dVv8zE_G #PlantGenomics #Insight #BGIGeneTest