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Articles tagged Genome Integrity
(11 results)
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Wolverine genome assembly sets a standard for conservation geneticists
Chromosome-level assembly of the North American wolverine sets a new standard for the weasel (Mustelidae) family.
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In memoriam: Margaret Lieb
Guest post by Nina Wolff pays tribute to long-standing GSA member Margaret Lieb. Margaret (Peggy) Lieb died on March 8, 2018 in South Pasadena, California at the age of 94. After attending schools in New Rochelle, NY, she graduated magna cum laude from Smith College, and subsequently studied with H.J. Muller at Indiana University and…
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Beyond BRCA: new players in breast cancer pathways discovered
Mutations that disrupt the gene BRCA2 dramatically increase the odds of developing breast and ovarian cancer—but such mutations aren’t enough to cause cancer on their own. To turn normal cells cancerous, some of BRCA2’s genetic interactors must also mutate. In an article recently published in GENETICS, Ding et al. sought to identify some of these genes.…
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Transcription may be mutagenic in germline but not somatic tissues
When a mutation arises in an egg or sperm cell, it could be evolutionarily important. But if a mutation occurs in somatic tissue instead, the result could be cancer. Mutations in the germline and soma not only have contrasting consequences, they also arise at different rates that may reflect the balance of DNA damage and…
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Microbial DNA repair goes nuclear
In the ruins of the Chernobyl Nuclear Power Plant—an area deemed unsafe for humans for the next 20,000 years after a catastrophic failure—life thrives. Fungi that reside there, along with other organisms that can survive large radiation doses, must have strategies to cope with the DNA-damaging effects of living at a meltdown site. In the…
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Mapping structural variants with nanochannel arrays
Short-read sequencing has fueled the acceleration of genetic research But though these next-generation methods are fast and efficient, they can’t do everything well. One important area in which short-reads fall short is detecting structural variants (SV), where chunks of the genome are deleted, inserted, repeated, inverted, or in some other way shuffled around compared to…
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Sequencing so fast you’ll think you’re on CSI:
If you’ve ever watched a procedural crime-solving show on television, you’re sure to have seen a lab tech magically produce results from a complicated assay in mere minutes. If you’re a wet lab scientist, you’ve probably found yourself wishing that “CSI technology” were real so you didn’t have to spend your whole day running PCRs…
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Calvin Bridges: Bringing genes down to earth
When sharp-eyed 20-year-old Calvin Bridges entered Columbia University in 1909, the word “gene” had just been coined. At that time, the term was profoundly abstract, referring to “factors” or “conditions” that could be glimpsed only through the window of statistical analysis. Seven years later, Bridges and his colleagues had brought these mysterious factors firmly down…
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New Faculty Profile: Jared Nordman
New Faculty Profiles showcase GSA members who are establishing their first independent labs. If you’d like to be considered for a profile, please complete this form on the GSA website. Jared Nordman Assistant Professor (Since 2015) Department of Biological Sciences Vanderbilt University Lab website Research program: Regulation of genome duplication requires exquisite control to…
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Looking for cancer’s weak spots
The mutations that drive cancer formation are often found in “hub” genes that regulate many aspects of cell growth and survival. But these key genes are not always good therapeutic targets — some are even considered “undruggable.” In the latest issue of GENETICS, Bailey et al. identify a strategy for fighting cancer cells that carry…
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Aging Males and Aneuploidy
Do aging males make poorer quality sperm? Older mothers face a well-established risk of producing eggs with chromosome abnormalities, but it is less clear how age affects meiosis in males. In the February issue of GENETICS, Vrooman et al. investigated chromosome dynamics during spermatogenesis in mice of different ages. They found that meiotic errors increased…