Click
here to close Hello! We notice that
you are using Internet Explorer, which is not supported by Echinobase
and may cause the site to display incorrectly. We suggest using a
current version of Chrome,
FireFox,
or Safari.
PeerJ
2018 Jan 01;6:e4979. doi: 10.7717/peerj.4979.
Show Gene links
Show Anatomy links
A new minute ectosymbiotic harpacticoid copepod living on the sea cucumber Eupentacta fraudatrix in the East/Japan Sea.
Yeom J
,
Nikitin MA
,
Ivanenko VN
,
Lee W
.
Abstract
The ectosymbiotic copepods, Vostoklaophonte eupenta gen. & sp. nov. associated with the sea cucumber Eupentacta fraudatrix, was found in the subtidal zone of Peter the Great Bay, East/Japan Sea. The new genus, Vostoklaophonte, is similar to Microchelonia in the flattened body form, reduced mandible, maxillule and maxilla, but with well-developed prehensile maxilliped, and in the reduced segmentation and setation of legs 1-5. Most appendages of the new genus are more primitive than those of Microchelonia. The inclusion of the symbiotic genera Microchelonia and Vostoklaophonte gen. nov. in Laophontidae, as well as their close phylogenetic relationships, are supported by morphological observations and molecular data. This is the third record of laophontid harpacticoid copepods living in symbiosis with sea cucumbers recorded from the Korean and Californian coasts.
Figure 8. Phylogenetic tree of harpacticoids based on nuclear 18S ribosomal DNA data.A 25% majority consensus of 1,500 trees generated using MBayes 3.2.6 (Ronquist et al., 2012) under the GTR+G+I model. Numbers at nodes represent Bayesian posterior probabilities. Members of the family Laophontidae showed in bold. Symbionts of holothurians are marked with asterisk (*).
Edgar,
MUSCLE: multiple sequence alignment with high accuracy and high throughput.
2004, Pubmed
Edgar,
MUSCLE: multiple sequence alignment with high accuracy and high throughput.
2004,
Pubmed
Huys,
Cancrincolidae (Copepoda, Harpacticoida) associated with land crabs: a semiterrestrial leaf of the ameirid tree.
2009,
Pubmed
Huys,
Harpacticoid copepods-their symbiotic associations and biogenic substrata: a review.
2016,
Pubmed
Keane,
Assessment of methods for amino acid matrix selection and their use on empirical data shows that ad hoc assumptions for choice of matrix are not justified.
2006,
Pubmed
Khodami,
Molecular Phylogeny and Revision of Copepod Orders (Crustacea: Copepoda).
2017,
Pubmed
Medlin,
The characterization of enzymatically amplified eukaryotic 16S-like rRNA-coding regions.
1988,
Pubmed
Ronquist,
MrBayes 3.2: efficient Bayesian phylogenetic inference and model choice across a large model space.
2012,
Pubmed
Tamura,
MEGA6: Molecular Evolutionary Genetics Analysis version 6.0.
2013,
Pubmed
von Reumont,
Can comprehensive background knowledge be incorporated into substitution models to improve phylogenetic analyses? A case study on major arthropod relationships.
2009,
Pubmed