Genetics – BrainiYak

Category Archives: Genetics

Parental addictions forecast 69 percent higher rate of depression in their eventually adult children — as compared to children of non-addicts 0

© 2013 Peter Free Citation — to study Esme Fuller-Thomson, Robyn B. Katz, Vi T. Phan, Jessica P.M. Liddycoat, and Sarah Brennenstuhl, The long arm of parental addictions: The association with adult children’s depression in a population-based study, Psychiatry Research, doi:10.1016/j.psychres.2013.02.024 (in press, early online publication of corrected proof, 06 May 2013) Citation — to [...]

Categories: Genetics,Medicine,Psychiatry,Psychology,Public Health,Science

Tagged: 2005 Canadian Community Health Survey, addiction, addicts, depression, Dominic Ali, Esme Fuller-Thomson, Jessica P.M. Liddycoat, Parental addictions linked to adult children’s depression, Robyn B. Katz, Sarah Brennenstuhl, The long arm of parental addictions The association with adult children’s depression in a population-based study, University of Toronto, Vi T. Phan

Published:: 13 May 2013 – 16:13
Author:: By BrainiYak

Sahara’s Laperrine’s olive tree — its clonal survival strategy worked for in the past — but allegedly may be unavoidably self-defeating now — (i) an illustration of possible diminished genetic fitness in climate changing times or (ii) biologists jumping to unwarranted conclusions 0

© 2013 Peter Free Citation — to study G. Besnard, F. Anthelme, and D. Baali-Cherifc, The Laperrine’s olive tree (Oleaceae): a wild genetic resource of the cultivated olive and a model-species for studying the biogeography of the Saharan Mountains, Acta Botanica Gallica 159 (3): 319-328, DOI: 10.1080/12538078.2012.724281 (26 November 2012) Citation — to press release [...]

Categories: Biology,Climate,Climate change,Conservation,Environment,Evolution,Genetics,Global warming,Horticulture,Science

Tagged: a D. Baali-Cherifc, Algeria, cuspidata, erosion of genetic diversity, F. Anthelme, G. Besnard, Institut de Recherche pour le Développement, IRD, Laperrine’s olive tree, Maghreb, Mediterranean olive, Niger, northern Sudan, Olea europaea, Sahara, Sahara olive tree a genetic heritage to be preserved, The Laperrines olive tree Oleaceae a wild genetic resource of the cultivated olive and a model species for studying the biogeography of the Saharan Mountains

Published:: 3 May 2013 – 17:11
Author:: By BrainiYak

Horizontal gene transfer from bacteria and archaea to a subset of red algae (called Galdieria sulphurarea) appears to have occurred over evolutionary time — which partially explains this remarkable extremophile’s multifaceted talents 0

© 2013 Peter Free Citation Gerald Schönknecht, Wei-Hua Chen, Chad M. Ternes, Guillaume G. Barbier, Roshan P. Shrestha, Mario Stanke, Andrea Bräutigam, Brett J. Baker, Jillian F. Banfield, R. Michael Garavito, Kevin Carr, Curtis Wilkerson, Stefan A. Rensing, David Gagneul, Nicholas E. Dickenson, Christine Oesterhelt, Martin J. Lercher, and Andreas P. M. Weber, Gene Transfer [...]

Categories: Biochemistry,Biology,Environment,Evolution,Genetics,Science

Tagged: acid mine drainage, Andrea Bräutigam, Andreas P. M. Weber, archaea, arsenite methyltransferases, ATPases, bacteria, bacterial arsenical membrane protein pump, Brett J. Baker, Chad M. Ternes, Christine Oesterhelt, Curtis Wilkerson, Cyanidiophyceae, cyanobacteria, David Gagneul, eukaryotes, extreme environments, extremophiles, Galdieria sulphuraria, gaseous methyl derivatives, Gene Transfer from Bacteria and Archaea Facilitated Evolution of an Extremophilic Eukaryote, geothermal environments, Gerald Schönknecht, Guillaume G. Barbier, halophilic, horizontal gene transfer, Jillian F. Banfield, Kevin Carr, Mario Stanke, Martin J. Lercher, mercuric reductase, metal cations, Nicholas E. Dickenson, photosynthesis, photosynthetic organisms, prokaryotes, proteobacteria, R. Michael Garavito, red algae, Rhodophyta, Roshan P. Shrestha, sarcosine dimethylglycine methyltransferase, Stefan A. Rensing, toxic metals, Wei-Hua Chen

Published:: 29 March 2013 – 14:47
Author:: By BrainiYak

After the Pleistocene’s last Ice Age ended, southeast Alaska male brown bears apparently swam over to Alaska’s ABC islands to mate with female polar bears — which eventually turned the islands’ polar bear populations into brown bear ones 0

© 2013 Peter Free Citation — to study James A. Cahill, Richard E. Green, Tara L. Fulton, Mathias Stiller, Flora Jay, Nikita Ovsyanikov, Rauf Salamzade, John St. John, Ian Stirling, Montgomery Slatkin, and Beth Shapiro, Genomic Evidence for Island Population Conversion Resolves Conflicting Theories of Polar Bear Evolution, PLoS ONE 9(3): e1003345. doi:10.1371/journal.pgen.1003345 (14 March [...]

Categories: Biology,Climate change,Evolution,Genetics,Science

Tagged: ABC islands, Admiralty Island, Baranof Island, Beth Shapiro, brown bears, Chichagof Island, D-statistic, DNA, Flora Jay, gene flow, genomic evidence, Hudson Bay, Ian Stirling, Ice Age, island population conversion, James A. Cahill, John St. John, Mathias Stiller, matrilineal, mitochrondrial DNA, Montgomery Slatkin, mtDNA, Nikita Ovsyanikov, Pleistocene, polar bear evolution, polar bears, Rauf Salamzade, Richard E. Green, sex-biased, southeast Alaska, Tara L. Fulton, Ursos americanus, Ursos arctos, Ursos maritimus, X chromosome, X-linked loci

Published:: 15 March 2013 – 14:43
Author:: By BrainiYak

Vaccine strategies based on previously hypothesized methods of cellular invasion by Toxoplasma gondii and similar Apicomplexa parasites (like malaria) may be wrong or only partially correct — because the suspected genetic bases for cellular entry are (apparently) not the only ones that the parasites can use 0

Citation — to the study Nicole Andenmatten, Saskia Egarter, Allison J Jackson, Nicolas Jullien, Jean-Paul Herman, and Markus Meissner, Conditional genome engineering in Toxoplasma gondii uncovers alternative invasion mechanisms, Nature Methods, doi:10.1038/nmeth.2301 (early online publication, 23 December 2012) Citation — to press release Wellcome Trust, Study turns parasite invasion theory on its head, ScienceDaily (23 [...]

Categories: Biology,Environment,Genetics,Infectious disease,Medicine,Public Health,Science

Tagged: Allison J Jackson, Apicomplexa, apicomplexan, apicoplast, Babesia, Babesiosis, Coccidian diseases, Cryptosporidiosis, Cryptosporidium parvum, Cyclospora cayetanensis, Cyclosporiasis, genes, Isospora belli, Isosporiasis, Jean-Paul Herman, knocked out, malaria, Markus Meissner, Nicolas Jullien, Nicole Andenmatten, parasites, Plasmodium, protists, Saskia Egarter, Toxoplasma gondii, Toxoplasmosis

Published:: 24 December 2012 – 09:08
Author:: By BrainiYak

Bermuda-grass golf putting greens — mutations and the difficulty of keeping grass cultivars uniform 0

An occupation that one might not have anticipated as being economically important USDA Geneticist Karen Harris-Shultz — at the Crop Genetics and Breeding Research Unit in Tifton, Georgia — has developed ways of telling visually almost identical cultivars of Bermuda-grass apart by analyzing their DNA. Citation Karen R. Harris-Shultz, Brian M. Schwartz, and Jeff A. [...]

Categories: Genetics

Tagged: "off", Agricultural Research Service, Bermuda grass, Bermudagrass, breeding research, Brian M. Schwartz, crop genetics, cultivars, Dennis O’Brien, golf course, Jeff A. Brady, Karen R. Harris-Shultz, mutation, playability, Tifgreen, turf

Published:: 29 May 2012 – 17:54
Author:: By BrainiYak

30,000-year old plant tissue buried in late Pleistocene permafrost has been regenerated into living, seed-bearing plants 0

This happy happenstance courtesy of nesting Ice Age squirrels A Russian research team found Late Pleistocene (therefore fossil) Siberian squirrel burrows 38 meters below today’s ground surface. They found the squirrels’ stash of seeds and immature Silene stenophylla fruit tissue inside and radiocarbon dated the fruit to 31,800 ± 300 years ago. The team propagated [...]

Categories: Genetics,Science

Tagged: Alexandra Yashina, burrows, clonal, David Gilichinsky, Edith Gakhova, fossil, Ice Age, Kolyma River, mammoth, permafrost, Pleistocene, propagation, Siberia, Siberian squirrels, Silene stenophylla, squirrels, Stanislav Gubin, Stanislav Maksimovich, Svetlana Yashina, wooly rhinocerus

Published:: 21 February 2012 – 12:24
Author:: By BrainiYak

Distinguishing speciation via short mitochondrial DNA segments is conceptually like bar coding — an excellent overview by Michael Gross in “Current Biology” 0

This procedure doesn’t work in plants, but, for animals — Knowing where to look in long DNA strands has always been the problem — whether it be identifying the source of an abnormality or finding a shortcut label for whatever it is research wants to identify. Species identification via mitochondrial DNA “bar coding” has been [...]

Categories: Genetics,Science

Tagged: adenosine triphosphate, ATP, bar code, bar coding, biodiversity, CO1, cytochrome oxidase, DNA, electron transport, energy production, evolution, Michael Gross, oligomer, polymer, speciation, subunit, transmembrane protein

Published:: 16 February 2012 – 10:15
Author:: By BrainiYak

BrainiYak

Category Archives: Genetics

Parental addictions forecast 69 percent higher rate of depression in their eventually adult children — as compared to children of non-addicts 0

Sahara’s Laperrine’s olive tree — its clonal survival strategy worked for in the past — but allegedly may be unavoidably self-defeating now — (i) an illustration of possible diminished genetic fitness in climate changing times or (ii) biologists jumping to unwarranted conclusions 0

Horizontal gene transfer from bacteria and archaea to a subset of red algae (called Galdieria sulphurarea) appears to have occurred over evolutionary time — which partially explains this remarkable extremophile’s multifaceted talents 0

After the Pleistocene’s last Ice Age ended, southeast Alaska male brown bears apparently swam over to Alaska’s ABC islands to mate with female polar bears — which eventually turned the islands’ polar bear populations into brown bear ones 0

Bermuda-grass golf putting greens — mutations and the difficulty of keeping grass cultivars uniform 0

30,000-year old plant tissue buried in late Pleistocene permafrost has been regenerated into living, seed-bearing plants 0

Distinguishing speciation via short mitochondrial DNA segments is conceptually like bar coding — an excellent overview by Michael Gross in “Current Biology” 0

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