Table 1 Habitat locations, reproductive mode (RM) and molecular identification of Daphnia pulex and Daphnia pulicaria used in this study. All individuals (n) were found to be cyclically parthenogenic (CP) using methods from [58]. Molecular identification based on the mitochondrial (mtDNA) marker NADH dehydrogenase subunit 5 (ND5) allowed us to assign clade membership as in [59]. The nuclear (nDNA) lactate dehydrogenase A (LDH) locus was used to identify individuals that were homozygous for the F allele (lake phenotype) or the S allele (pond phenotype), or were heterozygous for both alleles (hybrid phenotype)

From: The evolution of reproductive isolation in Daphnia