... why populations of animals that diverge and eventually reconnect produce weak "hybrid" offspring. Hybrid animals result when populations of a given species separate from one another, undergoing ...
A genetic malfunction found in marine crustaceans called copepods likely explains why populations of animals that diverge and eventually reconnect produce weak "hybrid" offspring.
OSNABRUCK, Germany, Oct. 30 (UPI) -- Hybrid offspring from a polar bear and a grizzly bear behave more like polar bears but look like a combination of the two species, German scientists said.
... studying the functional divergence that contributes to speciation (specifically, to decreased fitness of hybrid offspring), getting accurate estimates of isolation times for the Drosophila simulans ...
... (a plant cell's photosynthetic factory), they discovered that Tahitian vanilla fit the pattern of being a hybrid offspring between V. planifolia and V. odorata.
"And that's where the Maya ...
... den Hartog has shown that bastard doves can fend for themselves. Despite having a strange coo, hybrid offspring are still able to defend their territory. This is necessary for further reproduction.
...
A biologist has shown that bastard doves can fend for themselves. Despite having a strange coo, hybrid offspring are still able to defend their territory. This is necessary for further reproduction.
... the discovery of a gene that keeps mouse subspecies from producing fertile hybrid offspring. In other words, a gene that is putting a reproductive barrier between incipient mouse species.
Scientists ...
... ago, Presgraves found that the Nup96 gene kills hybrid offspring between these fruitfly species. Since, two ... offspring. Both genes encode parts of the same gatekeeping complex that regulates what gets ...
... in the formation of new species.
The new study goes beyond past investigations by showing that the hybrid offspring produced by mating these beetle types with each other in the lab grow faster than ...
... up with more expressed traits than either parent - the best of both worlds, gene-wise.
"Hybrid offspring are probably benefiting from obtaining the genes unique to each inbred parent in addition to ...
