| rangewide molecular structuring in the utah sucker (catostomus ardens). | the utah sucker (catostomus ardens) is endemic to the bonneville basin and the upper snake river drainage in western north america, and is thought to hybridize with the federally endangered june sucker (chasmistes liorus mictus) in utah lake (bonneville basin). here we describe the discovery of a major subdivision in utah suckers (4.5% mitochondrial sequence divergence) between the ancient snake river drainage and the bonneville basin. this boundary has not previously been recognized in utah suc ... | 2006 | 16780436 |