@article {Medlin2007,
	title = {A taxonomic review of the genus Phaeocystis},
	journal = {Biogeochemistry},
	volume = {83},
	number = {1-3},
	year = {2007},
	note = {ISBN: 0085-4417 tex.mendeley-tags: rcc3541},
	pages = {3{\textendash}18},
	abstract = {Phaeocystis is recognized both as a nuisance and as an ecologicallyphytoplankton species. Its polymorphic life cycle with bothand flagellated cells causes many taxonomic problems. Sequenceamong 22 isolates representing a global distribution of thehas been compared using three molecular markers. The-1,5-bisphosphate carboxylase/oxygenase (RUBISCO) spacer is tooto resolve species. The most conserved 18S ribosomalacid (rDNA) analysis suggests that an undescribedPhaeocystis sp. (isolate PLY559) is a sister taxon to theunicellular Phaeocystis jahnii; this clade branched priorthe divergence of all other Phaeocystis species, including theones. The internal transcribed spacer (ITS) region showsvariation that some spatial population structure can be, at least in P. antarctica. P. globosa and P. pouchetii havedifferent ITS copies, suggestive of cryptic species that areable to hybridize. A molecular clock has been constructed thatthe divergence of the cold water colonial forms from the-water colonial forms to be about 30 Ma and the divergence of P.and P. pouchetii to be about 15 Ma. A short description ofcolonial stage and the flagellated stage for each formallyspecies is provided. Morphological information is alsoon a number of undescribed species. These include the strain559, consisting of non-colonial cells with peculiar tubular, a second non-colonial species from the north westernSea producing a lot of mucus, and a colonial species with-less flagellates found in Italian waters. In addition, threemorphotypes with scales different from those of P.were reported in the literature from Antarctic waters. Theemerging from both molecular and morphological data is that theof species in the genus is still underestimated and that crypticpseudocryptic diversity requires a sound assessment in futureof this genus. Based on all published observations, an emendedof the genus is provided.},
	keywords = {Molecular clock, P. cordata, P. globosa, P. jahnii, P. pouchetii, P. scrobiculata, Phaeocystis antarctica, rcc3541, rDNA analysis},
	issn = {01682563},
	doi = {10.1007/s10533-007-9087-1},
	author = {Medlin, Linda and Zingone, Adriana}
}
