Publications

extreme clonal uniformity of phoxinus eos/neogaeus gynogens (pisces: cyprinidae) among variable habitats in northern minnesota beaver ponds.	genetic surveys of parthenogenetic vertebrate populations have demonstrated a common pattern of relatively high degrees of clonal variation and the coexistence of numerous clones. in striking contrast, the phoxinus eos/phoxinus neogaeus/hybrid gynogen complex of cyprinid fishes exhibits no clonal variation within a northern minnesota drainage characterized by successional beaver ponds. gynogens were sampled from three habitats in each of four different pond types in a single drainage in voyageur ...	1995	7761438
phenotypic consequences of genetic variation in a gynogenetic complex of phoxinus eos-neogaeus clonal fish (pisces: cyprinidae) inhabiting a heterogeneous environment.	we examined the genetic composition, habitat use, and morphological variation of a phoxinus eos-neogaeus unisexual hybrid complex and its sexually reproducing progenitor species inhabiting beaver-modified drainages of voyageurs national park, minnesota. in addition to the single diploid p. eos-neogaeus gynogenetic clone, triploid and diploid-triploid mosaic biotypes were present at our study sites. both p. eos and p. neogaeus, and all three hybrid biotypes were ubiquitous throughout one intensiv ...	2004	15266975
the origin of phoxinus eos-neogaeus unisexual hybrids.	phoxinus eos-neogaeus unisexual hybrids (cyprinidae, pisces) are among the few vertebrate taxa known to reproduce clonally by gynogenesis. these taxa have a broad distribution in north america, mostly located in regions previously covered by the last pleistocene ice sheet. to assess whether asexual hybrids dispersed from glacial refuges at the end of the pleistocene or they originated from current hybridization events, genetic diversity of mitochondrial dna (mtdna) sequences and microsatellite l ...	2007	17892466