B. Streit et al., NATURAL HYBRIDIZATION IN FRESH-WATER ANIMALS - ECOLOGICAL IMPLICATIONS AND MOLECULAR APPROACHES, Naturwissenschaften, 81(2), 1994, pp. 65-73
The number of cases where the phenomena of hybridization and gene intr
ogression have been found in species interactions is steadily increasi
ng, in both plant and animal taxa. During the last few years, many exa
mples have been detected even in otherwise well-known freshwater anima
l taxa. We discuss the topic with respect to ecology and evolutionary
processes and compare the main potentials and limitations of allozymes
, mitochondrial DNA, and RAPD markers to address some important geneti
c issues of interspecific hybridization in natural populations of sele
cted freshwater model systems.