Table 2.

Summary of Actin PCR Experiments on Arcella Lineages.

Lineage	Pop PCRs	SC PCRs	Clones	Genes	Nonchimera
A. hemisphaerica Blue	15	3	246	69	41
A. hemisphaerica Red	6	6	194	58	33
A. vulgaris SC	11	NA	132	48	20
A. vulgaris WP	8	NA	43	20	8

NOTE.—Pop PCR = PCR performed on DNA extracted from a clonal culture; SC PCR = PCR performed on a single cell. A complete table is available as supplementary table 1 (Supplementary Material online); clones = number of clones sequenced; genes = number of distinct actin gene sequences obtained; nonchimera = number of distinct actin sequences determined to be nonchimeric.