Cargando…

Description of a new species of Paraplehnia (Polycladida, Stylochoidea) from Japan, with inference on the phylogenetic position of Plehniidae

Abstract. We describe a new species of polyclad flatworm, Paraplehniaseisuiaesp. nov., from 298–310 m depths in the Sea of Kumano, West Pacific, Japan. Paraplehniaseisuiaesp. nov. is characterized by i) a developed muscular wall proximally occupying about one-third of the prostatic vesicle, ii) no c...

Descripción completa

Detalles Bibliográficos
Autores principales: Oya, Yuki, Kimura, Taeko, Kajihara, Hiroshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pensoft Publishers 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6646300/
https://www.ncbi.nlm.nih.gov/pubmed/31346307
http://dx.doi.org/10.3897/zookeys.864.33955
_version_ 1783437530509606912
author Oya, Yuki
Kimura, Taeko
Kajihara, Hiroshi
author_facet Oya, Yuki
Kimura, Taeko
Kajihara, Hiroshi
author_sort Oya, Yuki
collection PubMed
description Abstract. We describe a new species of polyclad flatworm, Paraplehniaseisuiaesp. nov., from 298–310 m depths in the Sea of Kumano, West Pacific, Japan. Paraplehniaseisuiaesp. nov. is characterized by i) a developed muscular wall proximally occupying about one-third of the prostatic vesicle, ii) no common duct between the spermiducal bulbs and the prostatic vesicle, and iii) a genital pit between the male and female gonopores. We provide a partial sequence (712 bp) of the mitochondrial cytochrome c oxidase subunit I gene as a DNA barcode for the species. Our phylogenetic analyses based on 603-bp 28S rDNA sequences indicate that P.seisuiaesp. nov. is nested in a clade consisting of stylochoid species along with unidentified species of Stylochus. It suggests that Plehniidae belongs to Stylochoidea, although this should be confirmed by future studies that contain Plehniaarctica (Plehn, 1896), the type species of the type genus of the family. The interfamily relationship among the superfamily Stylochoidea remains poorly resolved.
format Online
Article
Text
id pubmed-6646300
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Pensoft Publishers
record_format MEDLINE/PubMed
spelling pubmed-66463002019-07-25 Description of a new species of Paraplehnia (Polycladida, Stylochoidea) from Japan, with inference on the phylogenetic position of Plehniidae Oya, Yuki Kimura, Taeko Kajihara, Hiroshi Zookeys Research Article Abstract. We describe a new species of polyclad flatworm, Paraplehniaseisuiaesp. nov., from 298–310 m depths in the Sea of Kumano, West Pacific, Japan. Paraplehniaseisuiaesp. nov. is characterized by i) a developed muscular wall proximally occupying about one-third of the prostatic vesicle, ii) no common duct between the spermiducal bulbs and the prostatic vesicle, and iii) a genital pit between the male and female gonopores. We provide a partial sequence (712 bp) of the mitochondrial cytochrome c oxidase subunit I gene as a DNA barcode for the species. Our phylogenetic analyses based on 603-bp 28S rDNA sequences indicate that P.seisuiaesp. nov. is nested in a clade consisting of stylochoid species along with unidentified species of Stylochus. It suggests that Plehniidae belongs to Stylochoidea, although this should be confirmed by future studies that contain Plehniaarctica (Plehn, 1896), the type species of the type genus of the family. The interfamily relationship among the superfamily Stylochoidea remains poorly resolved. Pensoft Publishers 2019-07-15 /pmc/articles/PMC6646300/ /pubmed/31346307 http://dx.doi.org/10.3897/zookeys.864.33955 Text en Yuki Oya, Taeko Kimura, Hiroshi Kajihara http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Oya, Yuki
Kimura, Taeko
Kajihara, Hiroshi
Description of a new species of Paraplehnia (Polycladida, Stylochoidea) from Japan, with inference on the phylogenetic position of Plehniidae
title Description of a new species of Paraplehnia (Polycladida, Stylochoidea) from Japan, with inference on the phylogenetic position of Plehniidae
title_full Description of a new species of Paraplehnia (Polycladida, Stylochoidea) from Japan, with inference on the phylogenetic position of Plehniidae
title_fullStr Description of a new species of Paraplehnia (Polycladida, Stylochoidea) from Japan, with inference on the phylogenetic position of Plehniidae
title_full_unstemmed Description of a new species of Paraplehnia (Polycladida, Stylochoidea) from Japan, with inference on the phylogenetic position of Plehniidae
title_short Description of a new species of Paraplehnia (Polycladida, Stylochoidea) from Japan, with inference on the phylogenetic position of Plehniidae
title_sort description of a new species of paraplehnia (polycladida, stylochoidea) from japan, with inference on the phylogenetic position of plehniidae
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6646300/
https://www.ncbi.nlm.nih.gov/pubmed/31346307
http://dx.doi.org/10.3897/zookeys.864.33955
work_keys_str_mv AT oyayuki descriptionofanewspeciesofparaplehniapolycladidastylochoideafromjapanwithinferenceonthephylogeneticpositionofplehniidae
AT kimurataeko descriptionofanewspeciesofparaplehniapolycladidastylochoideafromjapanwithinferenceonthephylogeneticpositionofplehniidae
AT kajiharahiroshi descriptionofanewspeciesofparaplehniapolycladidastylochoideafromjapanwithinferenceonthephylogeneticpositionofplehniidae