Sentences with phrase «of killifish»

The results suggest that evolution of resistance in independent populations of killifish converges on the same target gene.

«One of our killifish mutants recapitulates, but in a rapid manner, a human disease called Dyskeratosis congenita, which is due to deficits in a complex involved in maintaining the end of chromosomes, or telomeres,» says lead author Dr. Itamar Harel, a postdoctoral research fellow in genetics.

Some of the killifish mutants have already shown promise for studying aging and disease.

Not exact matches

Using Atlantic killifish (Fundulus heteroclitus), the researchers examined whether mitochondrial - nuclear interactions alter the frequency of alternative forms of a gene that arise by mutation, called alleles, for over 11,000 nuclear DNA sequence variations within a population of the fish with mixed ancestry.

In a new study, researchers at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science examined how the interaction of two genomes in animal cells — the mitochondrial and nuclear genomes — interact to affect adaptation of the Atlantic killifish to different temperatures.

Next, the authors compared their stickleback results to previously published opsin genes in two related species of fish (bluefin killifish and black bream), separated from sticklebacks by millions of years, that had also adapted to blackwater and clearwater habitats.

Stanford University scientists have found a new middle ground with the development of a genome - editing toolkit to study aging in the naturally short - lived African turquoise killifish.

African turquoise killifish live in temporary ponds of water in Zimbabwe and Mozambique that disappear with the dry season.

«Fast aging and time machine: Genome of the Turquoise killifish sequenced.»

The findings, posted online in advance of publication in the journal Environmental Science and Technology, are part of an ongoing collaborative effort to track the impacts of the Deepwater Horizon oil spill on Gulf killifish populations in areas of Louisiana that received heavy amounts of oil.

The researchers have tracked the impact of the oil on killifish since the Deepwater Horizon spill occurred in April 2010.

The researchers collected Gulf killifish from an oiled site at Isle Grande Terre, La., and monitored them for measures of exposure to crude oil.

Whitehead said it is possible that some of the healthier, less impacted killifish could buffer the effects of the spill for the population as a whole.

Other species that share similar habitats with the Gulf killifish, such as redfish, speckled trout, flounder, blue crabs, shrimp and oysters — may be at risk of similar effects.

Researchers will look next at whether the adaptation affects how the killifish are able to respond to other kinds of stressors in their environment, such as low oxygen levels.

The study found that female killifish that avoid mating with males of a closely related species also are less likely to mate with males of their own species — if those males come from an unfamiliar population.

«Even though the specific molecular changes that are found in PCB - resistant tomcod and killifish are different, in both species AHR2 seems to be one of the genes — possibly the major gene — that is responsible for the resistance,» Hahn said.

While the killifish themselves seem to be immune to the toxic effects of the PCBs, they can still transfer contaminants up the food chain.

pipeline dredge reconstruction of fringe marshes....6 x 12 precast concrete culverts to unblock tidal creeks... and use of the amphibious Rolligon Ditcher Spreader to recreate tidal creeks and OMWM (killifish reservoirs)