Variegation in <I>Taraxacum platycarpum</I>

A Consideration of Variegation.

The segregation of albino or chlorophyll deficient seedlings in a pedigree propagated by self-fertilization is due either to a definite genetic factor or factors according to DEMEREC (1923) in maize, HALLQVIST (1926) in barley, etc., or to the abnormality of the plastids themselves according to CORRENS (1909) in Mirabilis, BAUR (1909) in Pelargonium, ANDERSON (1923) in maize, CLAUSEN (1927) in ...

Single-locus modification of position-effect variegation in Drosophila melanogaster. I. White variegation.

mechanism of position-eff ect variegation has been and remains a fasciT?ating puzzle, tan talizing the student of the genetics of somewhat higher organisms with the hope that here is a clue to the riddle of the sequential shifts of control during development. This view is elaborated in BAKER’S (1963) able review of his own and his colleagues’ work. One of the more refractory aspects of the puzz...

Earth Incorporated: Centralization and Variegation in the Global Company Network

Over the past 20 years, a widening gulf has appeared between the increasingly internationalized financing arrangements of the world’s leading corporations, and the persistence of nationally compartmentalized approaches to the study of corporate control. In lieu of direct empirical evidence on corporate control at the global level, the most widespread assumption is that the globalization of owne...

Position-effect variegation revisited: HUSHing up heterochromatin in human cells.

Much of what we understand about heterochromatin formation in mammals has been extrapolated from forward genetic screens for modifiers of position-effect variegation (PEV) in the fruit fly Drosophila melanogaster. The recent identification of the HUSH (Human Silencing Hub) complex suggests that more recent evolutionary developments contribute to the mechanisms underlying PEV in human cells. Alt...

Variegation in Drosophila and the Inert Chromosome Regions.