Fig. 3.1(continued) (Tsui et al. 2009 ) showing main
clades inalveolate and stramenopile lines. The points
where chloroplast losses may have occurred, according
to Tsui et al. ( 2009 ), are indicated byblack asterisks.An
alternative hypothesis in which a single chloroplast loss
event took place followed by the reacquisition of plas-tids by the ochrophyte line is indicated bygrey symbols
(asterisks hash). (b) Representative phylogenetic tree
based on SSU rRNA sequences showing relationships
between osmotrophic stramenopiles and photosyn-
thetic ochrophytes. From Moreira and Lo ́pez-Garcia
( 2002 ), with permission◂
Fig. 3.2Phylogenetic tree summarizing main phyloge-
netic relationships within Labyrinthulomycota based
on SSU rRNA sequences, together with representativeschematic life-cycle diagrams. Adapted from
Yokoyama and Honda ( 2007 ) and Yokoyama et al.
( 2007 )Systematics of the Straminipila: Labyrinthulomycota, Hyphochytriomycota, and Oomycota 43