Pulsed-field gel electrophoresis (PFGE) of the strains representing the 14 races of
U. hordei, the causal agent of covered smut on barley, revealed extensive polymorphism
in chromosome length and number. The purpose of this study was to determine by two
approaches the exact chromosome number for each U. hordei race,...
The San Vicente zinc lead deposit is located in the Eastern Andes of
Central Peru. The deposit is an epigenetic Mississippi Valley-type deposit
based on stratigraphic, geologic, petrographic, and geochemical evidence.
The dolomite host rocks of the Pucara Group are of Triassic-Jurassic
age. The source of metals are red sandstones...