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Chondrus crispus (ASM35022v2)

Chondrus crispus Assembly and Gene Annotation

About Chondrus crispus

Chondrus crispus, commonly called Irish moss or carrageen moss, is a common edible red seaweed which grows abundantly along the rocky parts of the Atlantic coast of Europe and North America. In its fresh condition this protist algae is soft and cartilaginous, varying in color from a greenish-yellow, through red, to a dark purple or purplish-brown. The principal constituent is a mucilaginous body, made of the polysaccharide carrageenan, which constitutes 55% of its weight. The organism also consists of nearly 10% protein and about 15% mineral matter, and is rich in iodine and sulfur. When softened in water it has a sea-like odour and because of the abundant cell wall polysaccharides it will form a jelly when boiled, containing from 20 to 100 times its weight of water.

(Text and image from Wikipedia, the free encyclopaedia.)


The assembly presented is the ASM35022v2 assembly submitted to INSDC with the assembly accession GCA_000350225.2 by Genoscope.


The annotation presented is derived from annotation submitted to INSDC with the assembly accession GCA_000350225.2, with additional non-coding genes derived from Rfam.

Repeats were annotated with the Ensembl Genomes repeat feature pipeline. There are: 59,047 Low complexity (Dust) features, covering 3 Mb (2.4% of the genome); 1,027 RepeatMasker features (annotated with the RepBase library), covering 0 Mb (0.1% of the genome); 19,602 RepeatMasker features (annotated with the PGSB-REdat library), covering 6 Mb (5.7% of the genome); 28,669 Tandem repeats (TRF) features, covering 3 Mb (2.7% of the genome).


  1. Evolution of red algal plastid genomes: ancient architectures, introns, horizontal gene transfer, and taxonomic utility of plastid markers.
    Janoukovec J, Liu SL, Martone PT, Carr W, Leblanc C, Colln J, Keeling PJ. 2013. PLoS ONE. 8:e59001.

Picture credit: Wikipedia, the free encyclopedia

More information

General information about this species can be found in Wikipedia.



AssemblyASM35022v2, INSDC Assembly GCA_000350225.2, Jul 2013
Database version112.1
Golden Path Length104,980,420
Genebuild byGenoscope
Genebuild methodImport
Data sourceGenoscope

Gene counts

Coding genes9,807
Non coding genes34
Small non coding genes34
Gene transcripts9,841