Tag: "antagonistic" at biology news

Good for the goose, not so great for the gander

...exes played out on the genetic level called sexual antagonistic pleiotropy. Because the mitochondrial genome (as well as the X chromosome) is inherited from the mother, evolutionary pressures might have selected for versions optimized for the female body. If the mitochondrial genome is better adapted to the f...

'Fruit fly dating game' provides clues to our reproductive prowess

...ot so simple, at least in their flies. If sexually antagonistic genes, or genes that benefit one sex while harming...archers findings supports the notion that sexually antagonistic genes exert powerful effects and mostly inhabit the X chromosome, which only females pass onto sons....

A little of what you fancy does you no good

...ally lower rates of reproductive success. Sexually antagonistic genes, it appears, may have far-reaching effects o...ncur the cost of less-fit daughters. This sexually antagonistic pattern challenges sexual selection theory predictions that female costs of reproduction are offset ...

Researchers identify neurons that assign value during learning

...ecomes attractive. These findings demonstrate that antagonistic subsets of neurons are responsible for assigning p... interest to see whether this principal concept of antagonistic neuronal populations mediating positive or negative values during learning holds true for much more ...

Researchers map out networks that determine cell fate

...esearchers were then able to identify both sets of antagonistic secondary regulators. Egr-1 and Egr-2 activate macrophage and repress neutrophil genes. Gif-1 is required to turn on neutrophil genes and repress macrophage counterparts. Such counteracting repression circuitry may be the key to understanding ste...

Genetic tug of war determines sexual differentiation

...fate of the early gonads is controlled by mutually antagonistic signals between Fgf9 and Wnt4." Since the Sry gene occurs only in mammals, it is possible that this antagonistic signaling between Fgf9 and Wnt4 may be the mechanism that has remained common in the evolution of al...

War between the sexes influences evolution in some species, say scientists

...n the Z." The scientists explain that the sexually antagonistic maternal-effect genes in ZW species lead to an evolutionary arms race. They state that maternal-effect conflict is increased in ZW species (compared with XY species) because the W, unlike the Y in humans, is expressed in both sexes through the mater...

Mutation in a single gene switches a fungus-grass symbiosis from mutualistic to antagonistic

...uch interactions range from mutually beneficial to antagonistic and are considered to be of major ecological and e... species with Epichlo fungi can be mutualistic or antagonistic or both. In the beneficial interactions, Epichlo endophytes are strictly limited in their intercel...

JCI table of contents October 1, 2005

...), Arsenic trioxide and retinoic acid (RA), can be antagonistic in vitro. In a paper appearing online on September 22 in advance of print publication of the October 1 issue of the Journal of Clinical Investigation, the same group describes a mechanism by which this occurs. Wilson Miller and colleagues from Lady ...

Tips from the Journals of the American Society for Microbiology

...f the organisms native in the soil microflora have antagonistic effects against pathogenic bacteria introduced into soil." (G.S. Johannessen, G.B. Bengtsson, B.T. Heier, S. Bredholt, Y. Wasteson, L.M. Rorvik. 2005. Potential uptake of Escherichia coli O157:H7 from organic manure into crisphead lettuce. Applied ...

A puzzle posed by black-headed ducks yields to persistent biologists

...highly successful brood parasite, unopposed by the antagonistic strategies that host species deploy against more costly parasites like cuckoos and cowbirds. Instead, they found that black-headed duck eggs are often rejected from host nests, and it took four years of detailed field research to figure out why. Lyon...

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(Date:2/13/2015)... 13, 2015 ACT Genomics Co., Ltd., ... to transform cancer genomic information into precision diagnosis ... has raised US$ 8 million in the its first ... Taipei, Taiwan , ACT Genomics has ... the aim to implement next generation sequencing (NGS) ...
(Date:2/12/2015)... 12, 2015 NXT-ID, Inc. (NASDAQ: ... biometric authentication company focused on the growing mobile commerce ... 62/113114 for DISTRIBUTED METHOD AND SYSTEM TO ... patent further establishes NXT-ID,s position in the emerging "Internet ... the ability for multiple devices to collaborate with one ...
(Date:2/10/2015)... 10, 2015  Alere Inc. (NYSE: ALR), a ... results for the quarter ended December 31, 2014. ... President of Alere said, "We made substantial progress ... the global leader in rapid diagnostics and delivering ... Health divestiture in early January enabled us to ...
Breaking Biology News(10 mins):ACT Genomics Raises $8 Million in its First Private Funding Round 2NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 2NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 3Alere Inc. Announces Fourth Quarter 2014 Results 2Alere Inc. Announces Fourth Quarter 2014 Results 3Alere Inc. Announces Fourth Quarter 2014 Results 4Alere Inc. Announces Fourth Quarter 2014 Results 5Alere Inc. Announces Fourth Quarter 2014 Results 6Alere Inc. Announces Fourth Quarter 2014 Results 7Alere Inc. Announces Fourth Quarter 2014 Results 8Alere Inc. Announces Fourth Quarter 2014 Results 9Alere Inc. Announces Fourth Quarter 2014 Results 10Alere Inc. Announces Fourth Quarter 2014 Results 11Alere Inc. Announces Fourth Quarter 2014 Results 12Alere Inc. Announces Fourth Quarter 2014 Results 13Alere Inc. Announces Fourth Quarter 2014 Results 14Alere Inc. Announces Fourth Quarter 2014 Results 15Alere Inc. Announces Fourth Quarter 2014 Results 16Alere Inc. Announces Fourth Quarter 2014 Results 17Alere Inc. Announces Fourth Quarter 2014 Results 18Alere Inc. Announces Fourth Quarter 2014 Results 19Alere Inc. Announces Fourth Quarter 2014 Results 20Alere Inc. Announces Fourth Quarter 2014 Results 21Alere Inc. Announces Fourth Quarter 2014 Results 22Alere Inc. Announces Fourth Quarter 2014 Results 23Alere Inc. Announces Fourth Quarter 2014 Results 24Alere Inc. Announces Fourth Quarter 2014 Results 25Alere Inc. Announces Fourth Quarter 2014 Results 26Alere Inc. Announces Fourth Quarter 2014 Results 27Alere Inc. Announces Fourth Quarter 2014 Results 28Alere Inc. Announces Fourth Quarter 2014 Results 29Alere Inc. Announces Fourth Quarter 2014 Results 30Alere Inc. Announces Fourth Quarter 2014 Results 31Alere Inc. Announces Fourth Quarter 2014 Results 32Alere Inc. Announces Fourth Quarter 2014 Results 33
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