title: A reply to Engel et al.
authors.affiliation: Department of Biochemistry and Molecular Biology, The University of New Hampshire, Durham, NH 03824, USA.
authors.forename: Aaron L
authors.initials: AL
authors.lastname: Wallace
authors.forename: Anita S
authors.initials: AS
authors.lastname: Klein
authors.forename: Arthur C
authors.initials: AC
authors.lastname: Mathieson
mesh_terms: D016000:Cluster Analysis; D044645:Fucus / Q000235:genetics*; D005787:Gene Frequency; D014644:Genetic Variation; D005838:Genotype; D012098:Reproduction / Q000235:genetics; D013045:Species Specificity