Shaulsky, G., Kuspa, A. & Loomis, W. F. A multidrug resistance transporter/serine protease gene is required for prestalk specialization in Dictyostelium.
Note that the writing and research units described in parts (1) and (2) must be taken in addition to the 21 units required for the specialization, although they do count toward the 45 units required for the degree.
One possibility is that aposematism and aerobic capacity preceded greater resource gathering, making it easier for frogs to go out and gather the ants and mites required for diet specialization.
Another fascinating aspect of filamentous fungi is the production of SM, which are considered to be part of the chemical arsenal required for niche specialization of these organisms.
For instance, since our screening was designed to identify ancestral alleles of D. simulans and D. sechellia, it eliminated genes required for particular specializations in each species.
Take the required steps for specialization, if desired.
It has this breakdown of the actions per minute required for the different specializations, and most of them are pretty tight with each other.
Notch signaling was activated to one side of these borders and was required for the identity, specializations and segregation of border cells.
Although numerous RNA species such as riboswitches [ 127, 128] and ribozymes have been resolved structurally by X-ray crystallography and NMR, due to the low-throughput nature and the specialization required for these methods, the number of structures is limited, and to date there are no crystal structures of sRNAs.
I am not entirely persuaded that the data on Notch signaling fully supports the authors claim that Notch signaling "was required for the identity and specializations of border cells".
