A new crop of archaeologists, less willing to take ancient texts at face value, are challenging the existence of a legendary dynasty.
The short legs that characterize certain dog breeds are associated with a gene that arose recently by RNA-based gene duplication.
Several dog breeds owe their short legs to a gene duplication event based on reverse transcription of RNA.
A clutch of five letters published online this week shows that p53 hinders the generation of induced pluripotent stem (iPS) cells. The work suggests ways to control the formation of iPS cells, although that capability will have to be used judiciously because p53 helps ensure the fitness of generated cells.
Discussing both their hopes and reservations, the McCabes highlight ethical issues while conveying the potential of genomic medicine.
Assaying nearly one million plants reveals that maize flowering time is not controlled by a large effect at any single locus.
Outcrossing vigor in maize is most likely due to retained variability in regions around the centromeres.