All Articles Tagged As: hybrids
 | Like any species that aspires to rule the world, the honey bee, Apis mellifera, invades new territories in repeated assaults. A new study demonstrates that when these honey bees arrive in a place that has already been invaded, the newcomers benefit from the genetic endowment of their predecessors. ...> Full Article |
 | Each year, Jurassic Park seems less like science fiction. Scientists are decoding woolly mammoth DNA. They also are decoding DNA from an extinct species much closer to us in genetic makeup - the Neanderthal. ...> Full Article |
 | Hybridizing blind cave fish from different cave populations can partially restore the vision of their offspring, biologists at New York University have found. The study suggests that genetic engineering can override, at least in part, half a million years of evolutionary change in one generation. ...> Full Article |
Cryptococcus neoformans is a major cause of fungal meningitis in predominantly immunocomprised individuals.
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Researchers believe they have just confirmed a controversial theory of evolution. The X chromosome is a strikingly powerful force in the origin of new species.
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 | What began more than 50 years ago as a way to improve fishing bait in California has led researchers to a significant finding about how animal species interact and that raises important questions about conservation. ...> Full Article |
 | Rubbish heaps and backyard gardens helped early farmers domesticate crop plants, according to Oxford University scientists. Their research confirms that seeds and fruits gathered in the wild and then discarded or planted at home created a 'backyard melting pot' that gave rise to novel hybrids. Ancient people were quick to spot useful hybrids and start growing them as crops as the first village farms were established, around 4,000 years ago. ...> Full Article |
New radiocarbon analysis dates human skull to 33,000 years ago
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Species are kept separate in plants and animals through barriers to gene flow. However, the exact mechanisms of speciation have only been explained within the last 20 years. Scientists found that one mechanism, hybrid necrosis, is associated with a plant defense gene. Different forms of these rapidly evolving genes in parent plants can cause autoimmune responses leading to offspring inviability and may represent a molecular pathway to speciation unique to plants.
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