Q&A with a chromosome cartographer
La Jolla Institute for Immunology Associate Professor Ferhat Ay, Ph.D., is building some of the world's smallest maps. Dr. Ay harnesses computers to transform DNA genomic sequences into 3D maps. These maps can reveal how genes interact and how the bo.....»»
Yeast meiosis study finds temperature changes result in shorter meiotic chromosome axes and more crossovers
In a study of meiosis in budding yeast, a research team found that yeast senses temperature changes by increasing the level of DNA negative supercoils to increase crossovers and modulate chromosome organization during meiosis......»»
Vernicia montana"s genome unearths new breeding horizons
A study has unveiled the genetic blueprint of Vernicia montana, a plant renowned for its high-value tung oil and ornamental beauty. The research decodes its chromosome-level genome, providing unparalleled insights into its evolution and setting the s.....»»
Smooth sailing for eggplant: Breakthrough in understanding prickle formation
Scientists have discovered the gene responsible for prickles in eggplants, a trait that complicates farming. Using advanced genetic techniques, they identified the Prickly Eggplant (PE) gene on chromosome 6 and pinpointed SmLOG1 as the key factor......»»
Platypus and chicken reveal how chromosomes balance between the sexes
UNSW Sydney researchers have made new discoveries of fundamental differences in biological processes between males and females—by interrogating the unique and diverse sex chromosome systems of the platypus and the chicken......»»
Frozen mammoth skin retained its chromosome structure
Features as small as 50 nanometers preserved in a 50,000-year-old sample. Enlarge (credit: LEONELLO CALVETTI/SCIENCE PHOTO LIBRARY) One of the challenges of working with ancient DNA samples is that damage accumulates ove.....»»
Genomic insights into adaptation to bipedal saltation and desert-like habitats of jerboas
Jerboas are a lineage of small rodents displaying atypical mouse-like morphology with elongated strong hindlimbs and short forelimbs. A research team has recently sequenced and reported the chromosome-scale genome of the Mongolian five-toed jerboa (O.....»»
Researchers uncover key mechanisms in chromosome structure development
Researchers at Rice University are making strides in understanding how chromosome structures change throughout the cell's life cycle. Their study on motorized processes that actively influence the organization of chromosomes appears in the Proceeding.....»»
Researchers reveal how acetylation regulates centromere dynamics, chromosome segregation and mitotic progression
Cell division produces new cells, which underpin life proliferation and development. Mitosis is the shortest and the most dynamic phase of the cell cycle. During mitosis, chromosomes are evenly distributed between the two daughter cells, preserving t.....»»
Researchers study the intricacies of homologous recombination and abnormal chromosome bridges
Keeping the genetic information stored in genomic DNA intact during the cell division cycle is crucial for almost all lifeforms. Extensive DNA damage invariably causes various adverse genomic rearrangements, which can lead to cell death in the best c.....»»
Researchers develop near-chromosome-level genome for the Mojave poppy bee
Scientists at the United States Department of Agriculture (USDA)'s Agricultural Research Service (ARS) and university research partners have developed a near chromosome-level genome for the Mojave poppy bee, a specialist pollinator of conservation co.....»»
First chromosome-level reference genomes of the ornamental banana and pink banana
The genus Musa, encompassing approximately 70 herbaceous species, is predominantly found in the tropical and subtropical regions of Asia and Oceania. This genus is renowned for being one of the most important food crops globally and popular ornamenta.....»»
Unveiling the genetic blueprint of safflower
A research team has completed a high-quality chromosome-scale assembly of the Chuanhonghua 1 safflower genome. This work sheds light on the genetic underpinnings of crucial traits like linoleic acid (LA) and hydroxysafflor yellow A (HSYA) production......»»
Social change may explain decline in genetic diversity of the Y chromosome at the end of the Neolithic period
The emergence in the Neolithic of patrilineal social systems, in which children are affiliated with their father's lineage, may explain a spectacular decline in the genetic diversity of the Y chromosome observed worldwide between 3,000 and 5,000 year.....»»
Cloud Console Cartographer: Open-source tool helps security teams transcribe log activity
Cloud Console Cartographer is an open-source tool that maps noisy log activity into highly consolidated, succinct events to help security practitioners cut through the noise and understand console behavior in their environment. “Infrastructure.....»»
Twisted pollen tubes induce infertility in plants with multiple sets of chromosomes
Most mammals and humans have a double set of chromosomes—and as a rule, plants do, too: One set comes from the father, the other from the mother. Such organisms are called diploids. However, sometimes the number of chromosome sets doubles from one.....»»
New study finds potential targets at chromosome ends for degenerative disease prevention
We depend on our cells being able to divide and multiply, whether it's to replace sunburnt skin or replenish our blood supply and recover from injury. Chromosomes, which carry all of our genetic instructions, must be copied in a complete way during c.....»»
Horizontal gene transfer: How fungi improve their ability to infect insects
Researchers at the Kiel Evolution Center have investigated for the first time in detail how a fungus important for biological plant protection can pass on an advantageous chromosome horizontally, using a previously little-studied way of exchanging ge.....»»
Double trouble at chromosome ends: New study alters our understanding of telomere biology
Half a century ago, scientists Jim Watson and Alexey Olovnikov independently realized that there was a problem with how our DNA gets copied. A quirk of linear DNA replication dictated that telomeres that protect the ends of chromosomes should have be.....»»
New insights in the regulation of genetic information exchange
Within every cell in our body, our DNA is tightly bundled with proteins to form structures known as chromosomes. The commonly known shape of a chromosome relates to an X-shaped appearance in many organisms. The formation of the X-shaped chromosome re.....»»
How HIV smuggles its genetic material into the cell nucleus
Each year, about 1 million individuals worldwide become infected with HIV, the virus that causes AIDS. To replicate and spread the infection, the virus must smuggle its genetic material into the cell nucleus and integrate it into a chromosome......»»