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Research Interests
Research
in the Porter Lab combines natural history with
molecular markers to study phylogenetic relationships,
phylogeography, hybridization, conservation genetics,
evolution of mating systems and alternate reproductive
tactics (ARTs) in natural populations of fishes
and other aquatic organisms. Projects typically
involve both field and laboratory studies from
freshwater ecosystems in the Eastern United States.
Phylogenetic analyses are conducted at the species
or population level using morphological and/or
molecular methods including meristic, morphometric,
osteology, pigment biochemistry, DNA sequence
and mutation detection techniques. Phylogenetic
trees are combined with biogeographic information
to reveal historic hydrologic changes that have
shaped the evolution and current distributions
of aquatic organisms. Molecular markers and principals
of population genetics are applied to the recovery
efforts of threatened and endangered fishes. Genetic
parentage analyses using microsatellite markers
provide a wealth of information on the evolution
of fish mating systems, ARTs, introgression and
hybridization.
Representative Publications
1. Fiumera, A.C., B.A. Porter,
G. Looney, M.A. Asmussen, and J.C. Avise. 2004.
Maximizing offspring production while maintaining
genetic diversity in supplemental breeding of
highly fecund managed species. Conservation Biology
18(1):1-8.
2. Fletcher, D.E., E.E. Dakin,
B.A. Porter, and J.C. Avise. 2004. Spawning behavior
and genetic Parentage in the pirate perch (Aphredoderus
sayanus), a fish with and enigmatic reproductive
morphology. Copeia 2004(1):1-10.
3. Suttkus, R.D., B.A. Porter,
and B.J. Freeman. 2003. The status and infraspecific
variation of Notripis stonei Fowler. Proceedings
of the American Philosophical Society 148(4):354-376.
4. Porter, B.A., A.C. Fiumera,
and J.C. Avise. 2002. Egg mimicry and allopaternal
care: two mate attracting tactics by which nesting
striped darter (Etheostoma virgatum) males enhance
reproductive success. Behavioral Ecology and Sociobiology
51:350-359.
5. Porter, B.A., T.M. Cavender,
and P.A. Fuerst. 2002. Molecular phylogeny of
the snubnose darters, subgenus Ulocentra (genus
Etheostoma, family Percidae). Molecular Phylogenetics
and Evolution 22(3):364-374.
6. Walker, D., B.A. Porter,
J.C. Avise. 2002. Genetic parentage assessment
in the crayfish Orconectes placidus, a high-fecundity
invertebrate with extended maternal brood care.
Molecular Ecology 11(10):2115-2122.
7. Fiumera, A.C., B.A. Porter,
G.D. Grossman, and J.C. Avise. 2002. Intensive
genetic assessment of the mating system and reproductive
success in a semi-closed population of the mottled
sculpin, Cottus bairdi. Molecular Ecology 11(11):2367-2378.
Office Phone: (412) 396-5786
Email: porterb@duq.edu
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