Hidden diversity: DNA 'barcoding' reveals a common butterfly is actually 10 different species
...nct lineages, each with different caterpillars and preferences in food plant and ecosystem. However, as many as six species can live in the same place, which strongly suggests mating segregation. Because the adults differ at best only slightly in appearance -- so slightly that it was attributed to ordinary "v...Retroviral gene therapy? ASLV, HIV, and MLV show distinct target site preferences
... Each retrovirus, they discovered, showed distinct preferences for genome integration. HIV vectors tend to integr... genes." ASLV might have more refined integration preferences during normal infection of chicken cells, the authors note, but its integration machinery can't inte...Promising hospital anti-infection strategy probably won't work, study shows
...tegy but rather because individual doctors develop preferences for the types of medications they prescribe. That can instigate the same type of antibiotic variety as mixing would introduce. The theory behind antibiotic cycling is that, just as a pathogen strain begins to adapt to a particular antibiotic, a ne...Study shows how consensus is attained in a noisy world
...s might obtain information about the decisions and preferences of other individuals with whom they do not have a relationship or even contact. The findings are published online this week (Aug. 2) by the Proceedings of the National Academy of Sciences (PNAS). The Leipzig demonstration is an example of a complex ......ouse viewpoint," Connelly will discuss sage-grouse preferences in relation to landscape restoration. "Economic and social ramifications of alternate management priorities in sagebrush ecosystems" will be presented by John Tanaka (Oregon State University, Union). The project is a collaborative effort betw...Ants protect plants better when jacked up on nectar
...ess at killing. Ant species that had shown greater preferences for meat in the previous experiment were also better protectors. Even so, all four species did kill some caterpillars, so hosting even the wimpiest ant species was better for the plant than having no ants at all. The researchers also found tha...First flavors form a lasting impression
...to understand early factors involved in human food preferences and diet choice, an area with many important healt...ifferences, the Monell researchers compared flavor preferences of bottle-fed infants raised on two different types of commercially-available infant formula. One w......the chemistry of the trees, affecting the foraging preferences of beavers. Cottonwoods often find themselves food for the beavers. At Weber River near Ogden, Utah, beavers live amongst Fremont cottonwoods and narrowleaf cottonwoods whose distributions overlap, leading to hybridization. Beavers practice sele...NIST-led research de-mystifies origins of 'junk' DNA
...e than others. The CARB study indicates that these preferences are side effects of late-stage intron gain, rather than side effects of intron-mediated gene formation. The CARB results are based on an analysis of carefully processed data for 10 families of protein-coding genes in animals, plants, fungi and their...Biology behind homosexuality in sheep, study confirms
...she said. About 8 percent of domestic rams display preferences for other males as sexual partners. Scientists don...ation between natural variations in sexual partner preferences and brain structure in nonhuman animals. The Endocrinology study is part of a five-year, OHSU-led ef...Global warming may cause songbirds to avoid certain foods
...s at the University of Wisconsin, studied the food preferences exhibited by black-capped chickadees. "When plant...ary compounds in the caterpillars and if they have preferences for caterpillars that fed on different types of leaves." Using chickadees captured in Kingston and...Nomadic outposts of transplanted stem cells tracked in Stanford study
...ical chairs over again. "This shows that the niche preferences aren't programmed into the cells," Contag said. Other Stanford researchers who contributed the work include postdoctoral scholars Amy Wagers, PhD, and Andreas Beilhack, PhD; technician Joan Dusich; research associate Michael Bachmann, MD, DSc; Robert...Pest control breakthrough from a spider's stomach
...l different species of Collembola, but with strong preferences DNA from a species, which was uncommon at the site where they were collected, proved to be present most frequently in the stomachs of the spiders. "The DNA analysis enables us to identify precisely what the spiders have eaten," said Dr Symondson. "I...Major mutations, not many small changes, might lead way to new species
.... He says the resulting quick change in pollinator preferences adds to the debate over whether new species arise ...owed by many smaller steps triggered by pollinator preferences that led ultimately to different species. Monkeyflowers, so-called because someone once imagined t...Research sheds new light on evolution
...owed by many smaller steps triggered by pollinator preferences that led ultimately to different species." Schemske compared the process to the repairing of a finely tuned watch. "In our model, the first adaptive adjustments might require big changes, similar to banging the broken watch a few times before making ...Researchers define molecular basis of human 'sweet tooth'
...researchers created mice with the same sweet-tooth preferences as humans by inserting the gene that codes for a h...tame. To demonstrate that the human "sweet-tooth" preferences lie in the receptors, the researchers generated mice with the human T1R2 receptor, which is signific......s not mandatory for the development of strong limb preferences or handedness." BMC Ecology being an online journal is a most suitable media for making the kind of data files that have been analysed in the article available for the readers. Three movie clips of feeding walruses exemplifying the foraging technique...Sex selection for social reasons unlikely to skew gender balance in Germany and UK
...tries, with the British expressing stronger gender preferences and the Germans being more relaxed about the sex o...girls anyway, the researchers concluded that these preferences would prevent any gender imbalances from happening in the UK if sex selection for social reasons is ...NHGRI study may help scientists develop safer methods for gene therapy
...gerous spot." The team also studied the insertion preferences for the Human Immunodeficiency Virus (HIV) the virus that causes AIDS. "About half the time, HIV likes to land in the middle of a gene," said Xiaolin Wu, Ph.D., a postdoctoral fellow in Dr. Burgess' laboratory and lead author of the study. "This is a......he same way supermarkets can manipulate customers' preferences by clever positioning of products. The study is p...animals, but the current findings suggest that the preferences of animals may be dependent on the range of options offered in the choice test. "The findings could ...