John A. Harper

Cross-Species Identification of Mendel's <i>I</i> Locus

Ian Armstead, Iain Donnison, Sylvain Aubry et al. · Science · 2007 · 197 citations

Discriminating the ancestral progenitors of hexaploid Festuca arundinacea using genomic in situ hybridization

M. W. Humphreys, Hugh Thomas, W. G. Morgan et al. · Heredity · 1995 · 126 citations · Full text

Plant Genetics, Comparative Genomics, Genetics +17

A geochemical context for stray gas investigations in the northern Appalachian Basin: Implications of analyses of natural gases from Neogene-through Devonian-age strata

Fred Baldassare, Mark A. McCaffrey, John A. Harper · AAPG Bulletin · 2014 · 95 citations

Facies Analysis, Engineering, Geochemical Study +17

Unconventional natural gas resources in Pennsylvania: The backstory of the modern Marcellus Shale play

Kristin M. Carter, John A. Harper, Katherine Schmid et al. · Environmental Geosciences · 2011 · 79 citations

Petroleum Reservoir, Hydraulic Fracturing, Marcellus Shale +14

Physical mapping of ribosomal DNA sites in <i>Festuca arundinacea</i> and related species by in situ hybridization

Howard Thomas, John A. Harper, M. R. Meredith et al. · Genome · 1997 · 72 citations