Maize map sees geneticists split over choice of direction

A notable triumvirate of maize geneticists.

W ITH the current explosive rate of progress in genetics, we are less likely than ever before to devote much thought to those whose research established the firm foundation on which our science has been built. In this essay, I pay tribute to a distinguished figure in the development of plant genetics, EDWARD M. EAST, and to two of his first graduate students, ROLLINS A. EMERSON and DONALD F. JO...

Factors affecting delivery of DREB1A gene in maize B73 split-seeds via biolistic system

Immature embryos as a choice tissue for genetic transformation of maize have a few limitations, such as genotype dependence, time-consuming and requiring a well-equipped greenhouse for access, at any time. In the present study, the split-seed explants were used for genetic transformation of maize, B73 line. The transformation of maize split-seed explants from the inbred line B73, for resistance...

Training of medical geneticists.

Optimizing over the split closure

The polyhedron defined by all the split cuts obtainable directly (i.e. without iterated cut generation) from the LP-relaxation P of a mixed integer program (MIP) is termed the (elementary, or rank 1) split closure of P . This paper deals with the problem of optimizing over the split closure. This is accomplished by repeatedly solving the following separation problem: given a fractional point, s...

L1-associated diseases: clinical geneticists divide, molecular geneticists unite.

The neuronal cell adhesion molecule L1 (L1CAM) is a transmembrane glycoprotein belonging to the immunoglobulin superfamily and is essential in the development of the nervous system. It is mainly expressed on neurons and Schwann cells, and plays a key role in axon outgrowth and pathfinding through interactions with various extracellular ligands and intracellular second messenger systems. Mutatio...