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Categories: Biology: Genetics, Ecology: Invasive Species

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Published

Scientists have solved the damselfly color mystery      (via sciencedaily.com)     Original source 

For over 20 years, a research team has studied the common bluetail damselfly. Females occur in three different color forms -- one with a male-like appearance, something that protects them from mating harassment. In a new study, an international research team found that this genetic color variation that is shared between several species arose through changes in a specific genomic region at least five million years ago.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Heart repair via neuroimmune crosstalk      (via sciencedaily.com)     Original source 

Unlike humans, zebrafish can completely regenerate their hearts after injury. They owe this ability to the interaction between their nervous and immune systems, as researchers now report.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular
Published

New method to help with analysis of single cell data      (via sciencedaily.com)     Original source 

CITE-seq (cellular indexing of transcriptomes and epitopes) is an RNA sequencing-based method that simultaneously quantifies cell surface protein and transcriptomic data within a single cell readout. The ability to study cells concurrently offers unprecedented insights into new cell types, disease states or other conditions.   While CITE-seq solves the problem of detecting a limited number of proteins while using single-cell sequencing in an unbiased way, one of its limitations is the high levels of background noise that can hinder analysis.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Marine Biology: Microbiology Ecology: Sea Life
Published

Rediscovery of rare marine amoeba Rhabdamoeba marina      (via sciencedaily.com)     Original source 

Researchers have rediscovered and successfully cultivating Rhabdamoeba marina -- a rare marine amoeba that has only been reported in two cases in the past century. Using this culture strain, they performed a comprehensive analysis of its genetic sequence, revealing for the first time the phylogenetic position of this enigmatic amoeba, and proposed a novel taxonomic classification based on their research findings.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Genomic tug of war could boost cancer therapy      (via sciencedaily.com)     Original source 

Researchers have discovered a 'genomic tug of war' in animal studies that could influence how well certain patients -- or certain cancers -- respond to decitabine, a drug used to treat myelodysplastic syndromes that is plagued by drug resistance issues. For the first time, researchers show that decitabine causes coding and non-coding regions of DNA to engage in a tug of war for a gene activator, called H2A.Z. Typically, deticabine draws this gene activator away from coding DNA, causing gene expression to grind to a halt and cells to die. However, many types of cancer have very high levels of H2A.Z, which may help them overcome this decitabine-induced tug of war, allowing the cancer to grow.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

How cell identity is preserved when cells divide      (via sciencedaily.com)     Original source 

A new theoretical model helps explain how epigenetic memories, encoded in chemical modifications of chromatin, are passed from generation to generation.  Within each cell's nucleus, researchers suggest, the 3D folding patterns of its genome determines which parts of the genome will be marked by these chemical modifications.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Marine Biology: Microbiology Biology: Molecular Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Much more than waste: Tiny vesicles exchange genetic information between cells in the sea      (via sciencedaily.com)     Original source 

Researchers take a look at data that has so far been mostly discarded as contamination, revealing the previously underestimated role of extracellular vesicles (EVs). These are important for the exchange of genetic information between cells and thus for the microbial community in the sea.

Biology: Biochemistry Biology: General Biology: Marine Ecology: Animals Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Biodiversity Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
Published

New study reveals huge potential for future waves of invasive species      (via sciencedaily.com)     Original source 

Human trade and transport have led to the intentional and accidental introductions of non-native species outside of their natural range globally. These biological invasions can cause extinctions, cost trillions, and spread diseases. A study has investigated how many of these non-native species already exist worldwide and which species groups are particularly prone to become non-native.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Hormones have the potential to treat liver fibrosis      (via sciencedaily.com)     Original source 

Researchers have discovered previously unknown changes in a specific type of liver cells, potentially opening avenues for a new treatment for liver fibrosis, a potentially life-threatening condition. Currently, there are no drugs available to treat liver fibrosis.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

How bacteria recognize viral invasion and activate immune defenses      (via sciencedaily.com)     Original source 

Bacteria have an array of strategies to counter viral invasion, but how they first spot a stranger in their midst has long been a mystery.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Geoscience: Geochemistry
Published

Unexpected discovery opens bioengineering opportunities for human and plant health      (via sciencedaily.com)     Original source 

An unexpected genetic discovery in wheat has led to opportunities for metabolic engineering of versatile compounds with potential to improve its nutritional qualities and resilience to disease.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Genetics Ecology: Endangered Species
Published

Genetic discovery promises high-iron vegetables and cereals      (via sciencedaily.com)     Original source 

A genetic breakthrough has opened new opportunities for iron-fortified vegetables and cereal crops to help address the global health issue of anemia.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Novel C. diff structures are required for infection, offer new therapeutic targets      (via sciencedaily.com)     Original source 

Newly discovered iron storage 'ferrosomes' inside the bacterium C. diff -- the leading cause of hospital-acquired infections -- are important for infection in an animal model and could offer new targets for antibacterial drugs. They also represent a rare demonstration of a membrane-bound structure inside a pathogenic bacterium, upsetting the biological dogma that bacteria do not contain organelles. 

Biology: Biochemistry Biology: General Biology: Microbiology Ecology: Animals Ecology: Invasive Species
Published

Dangerous bee virus less deadly in at least one US forest      (via sciencedaily.com)     Original source 

Researchers have found that the deadly deformed wing virus (DMV) in bees may have evolved to be less deadly in at least one U.S. forest. The findings could have implications for preventing or treating the virus in managed colonies, researchers said.

Biology: General Biology: Zoology Ecology: Invasive Species Ecology: Nature
Published

Geese 'keep calm and carry on' after deaths in the flock      (via sciencedaily.com)     Original source 

Canada geese strengthen existing friendships and forge a few new connections after losing close associates from their flock, new research shows.

Biology: Biochemistry Biology: General Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Invasive Species Ecology: Nature Environmental: Biodiversity Environmental: Ecosystems Geoscience: Geography
Published

Non-native species likely to continue spreading in North America, Australia and Europe      (via sciencedaily.com)     Original source 

Naturalized species, which are not native but have established themselves in new locations, have the potential to spread even further to suitable habitats in many parts of the world, reports a new study.

Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular Ecology: Endangered Species
Published

A tale of two proteins: Fundamental research could make growing better crops like clockwork      (via sciencedaily.com)     Original source 

Rhomboid-like protein 10, or RBL10, is thought to be an enzyme that degrades other proteins in the chloroplast membrane, but its function is largely unknown. Researchers are studying how RBL10 affects photosynthetic membrane lipid metabolism, an essential process in photosynthesis.