- Source: Chloropicaceae
Chloropicophyceae is a class of green algae in the division Chlorophyta that, along with Picocystophyceae, coincides with the traditional "prasinophyte clade VII". Chloropicophyceae has a single order, Chloropicales with a single family, Chloropicaceae.
Description
Members of this class are coccoid green cells, with a diameter of 1.5–4 μm, found in marine waters, with one nucleus, one mitochondrion, and one chloroplast surrounded by two membranes, containing starch grain; their single chloroplast has chlorophylls a and b; they lack pyrenoid and flagella; and they have a layered cell wall. Their sexual reproduction is unknown.
Taxonomy
In total, this class contains eight newly described species, belonging to two genera. The taxonomy goes as follows :
Division Chlorophyta Reichenbach 1834
Class Chloropicophyceae Lopes dos Santos & Eikrem 2017
Order Chloropicales Lopes dos Santos & Eikrem 2017
Family Chloropicaceae Lopes dos Santos & Eikrem 2017
Genus Chloropicon Lopes dos Santos & Eikrem 2017
Chloropicon sieburthii Lopes dos Santos & Eikrem 2017 (type species)
Chloropicon primus Lopes dos Santos & Eikrem 2017
Chloropicon roscoffensis Lopes dos Santos & Eikrem 2017
Chloropicon mariensis Lopes dos Santos & Eikrem 2017
Chloropicon laureae Lopes dos Santos & Eikrem 2017
Chloropicon maureeniae Lopes dos Santos & Eikrem 2017
Genus Chloroparvula Lopes dos Santos & Eikrem 2017
Chloroparvula pacifica Lopes dos Santos & Eikrem 2017 (type species)
Chloroparvula japonica Lopes dos Santos & Eikrem 2017
Phylogeny
In the 2017 article where the new class is described, it is shown as the sister clade of the class Picocystophyceae. The internal relationships are shown in the tree below, which is a simplified version of the phylogenetic tree elaborated in the research:
References
This article incorporates "Chloropicophyceae, a new class of picophytoplanktonic prasinophytes" text from this source, which is by Adriana Lopes dos Santos, Thibaut Pollina, Priscilla Gourvil, Erwan Corre, Dominique Marie, José Luis Garrido, Francisco Rodríguez, Mary-Hélène Noël, Daniel Vaulot and Wenche Eikrem available under the CC BY 4.0 license.
Media related to Chloropicaceae at Wikimedia Commons
Data related to Chloropicaceae at Wikispecies