Taxa to be examined in the proposed study. Genes that remain to be sequenced from each taxon are indicated in parentheses, with r = rbcL, 18 = 18S rDNA and 26 = 26S rDNA. All organisms are available from major collections (Culture collection of algae at the University of Texas, Provasoli-Guillard National Center for Culture of Marine Phytoplankton, Scandinavian Culture Center for Algae and Protozoa, Sammlung von Algenkulturen, Culture Collection of Algae and Protozoa, Plymouth Culture Collection [Marine Biological Association, U.K.], Marine Biotechnology Institute, Japan, National Institute of Environmental Studies, Japan, and Roscoff Culture Collection of Marine Phytoplankton) or have been collected from the field and maintained at -80C. The exception is Picoystis salinarum, which is expected to soon become available.

Chlorophyceae (68) Prasinophyceae (25) Trebouxiophyceae (35) Ulvophyceae (33)
Ankyra judayi (r) Bathycoccus prasinos (18, 26) Chlorella ellipsoidea Acetabularia acetabulum (26)
Aphanochaete magna (r) Crustomastix didyma (r, 18, 26) Chlorella minutissima (r, 26) Acetabularia major (26)
Atractomorpha echinata (r) Cymbomonas tetramitiformis (26) Chlorella saccharophila (r, 26) Acicularia schenkii (26)
Chlamydomonas moewusi Halosphaera sp. (r, 26) Chlorella vulgaris (r, 26) Acrosiphonia sp. (r, 26)
Chlamydomonas monoica (r) Mamiella sp. (26) Choricystis minor (r, 26) Batophora ocidentalis (26)
Chlamydomonas reinhardtii Mantoniella squamata (26) Closteriopsis acicularis.(r, 26) Bornetella nitida (26)
Chlorogonium elongatum (26) Micromonas pusilla (26) Coccomyxa simplex (r, 18, 26) Bryopsis plumosa (18, 26)
Botryococcus braunii (r, 26) Nephroselmis olivacea (26) Dictyochloropsis retic. (r, 26) Caulerpa prolifera (r, 26)
Bracteacoccus minor (r) Nephroselmis pyriformis (r, 26) Eremosphaera viridis (r, 26) Cephaleuros parasiticus (26)
Bulbochaete hiloensis. Nephroselmis minuta (18, 26) Fusochloris perforata (26) Chaetomorpha linum (r, 26)
Carteria crucifera Picocystis salinarum (r, 26) Geminella minor (r, 26) Chamaedoris peniculum (r, 26)
Chaetopeltis orbicularis (r) Prasinococcus capsulatus (26) Geminella terricola (r, 26) Cladophora albida (r, 26)
Chaetophora incrassata (r) Prasinoderma sp. (26) Gloeotila contorta (r, 26) Cladophora vagabunda (r, 26)
Cylindrocapsa geminella (r) Pseudoscourfieldia marina (26) Golenkinia minutissima (r, 26) Cladophoropsis membran. (r, 26)
Dunaliella parva Pterosperma cristatum (26) Jaagiella alpicola (r, 18, 26) Codium decorticatum (18, 26)
Elakatothrix viride Pycnococcus provasolii (26) Leptosira terrestris (r, 26) Enteromorpha intestinalis (26)
Fritschiella tuberosa (r) Pyramimonas orientalis (18, 26) Micractinium pusilum (r) Ernodesmis verticillata (r, 26)
Haematococcus lacustris (26) Pyramimonas olivaea (26) Microspora stagnorum (r,26) Gloeotilopsis planctonica (r, 26)
Hafniomonas reticulata (r, 26) Pyramimonas propulsa (r, 26) Microthamnion kuetzing. (r, 26) Halimeda discoidea (18, 26)
Heterochlamydomonas inae. (r) Pyramimonas parkeae (26) Myrmecia israelensis (r, 26) Hazenia mirabilis (r, 26)
Hormotilopsis tetravac. (r) Scherffelia dubia (r, 26) Myrmecia bisecta (r, 26) Microdictyon boergesenii (r, 26)
Hydrodictyon reticulatum (r) Tetraselmis convolutae (r, 26) Nannochloris eucaryotum (r, 26) Monostroma grevillei (r, 26)
Microspora sp. (r) Tetraselmis striata (r 26) Oocystis heteromucosa (r, 26) Neomeris dumentosa (26)
Neochloris vigensis (r) coccoid CCMP 1220 (26) Paradoxia multiseta (r, 26) Penicillus dumetatus (18, r, 26)
Oedocladium carolinianum (r) coccoid CCMP 1205 (r, 26) Parietochloris pseudoalv. (r, 26) Protoderma sarcinoidea (r, 26)
Oedogonium cardiacum Pedinophyceae (3) Planctonema sp. (r, 26) Rhizoclonium riparium (r, 26)
Pediastrum duplex (r) Marsupiomonas pell. (r, 18, 26) Prasiola fluviatilis (26) Siphonocladus tropicus (r, 26)
Physocytium sp.(r) Pedinomonas minor (26) Prasiolopsis ramosa (r, 18, 26) Trentepohlia sp. (26)
Planophila terrestris (r) Resultor mikron (18, 26) Prototheca wickerhamii (r, 26) Udotea flabellum (18, r, 26)
Polytoma uvella (r, 26) Mesostimatophyceae (2) Radiofilum conjunctivum (r, 26) Ulothrix zonata (r, 26)
Protosiphon botryoides Chaetosphaeridium glob. (r, 26) Raphidonema longipes.(r, 26) Ulva fasciata (r, 26)
Radiofilum transversale (r) Mesostigma viride (26) Stichococcus bacill. (r, 18, 26) Ulvaria oxysperma (r, 26)
Scenedesmus obliquus   Trebouxia impressa (r, 26) Valonia utricularis (r, 26)
Spermatozopsis similis (r, 26)   Trebouxia magna (r, 26)  
Sphaeroplea robusta   Trebouxia usneae (r, 26)  
Tetraspora sp (r)      
Treubaria setigera      
Trochiscia hystrix (r)      
Uronema belkae (r) i      
Volvox carteri      
28 chlamydomonad taxa representing 7 molecular phylogenetic lineages (26, r)