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Description and phylogenetic relationships of a new genus of Planoceridae (Polycladida, Acotylea) from Shimoda, Japan

Published online by Cambridge University Press:  22 February 2021

Yuki Oya Open the ORCID record for Yuki Oya [Opens in a new window]  and
Hiroshi Kajihara
Yuki Oya*
Affiliation:
Faculty of Science, Hokkaido University, Sapporo, Hokkaido060-0810, Japan
Hiroshi Kajihara
Affiliation:
Faculty of Science, Hokkaido University, Sapporo, Hokkaido060-0810, Japan
*
Author for correspondence: Yuki Oya, E-mail: yukioya5223@gmail.com
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Abstract

We establish a new genus of planocerid polyclad, Heteroplanocera gen. nov., based on a new species, H. katoi sp. nov., collected at a depth of 245 m off the coast of the Izu Peninsula, West Pacific, Japan. Heteroplanocera gen. nov. is distinguished from other planocerid genera by the following characteristics: (i) a pair of nuchal tentacles, (ii) a muscular bulb, (iii) a pair of spermiducal bulbs (instead of a seminal vesicle), (iv) a free prostatic vesicle, (v) a pair of accessory organs with teeth, (vi) a Lang's vesicle, and (vii) the lack of a bursa copulatrix. We provide a partial sequence of the cytochrome c oxidase subunit I (COI) gene (712 bp) as a DNA barcode of the new species. Furthermore, we estimate the phylogenetic position of Heteroplanocera gen. nov. among Planoceridae based on partial sequences of COI and 16S, 18S, and 28S ribosomal DNA. Based on our findings, we discuss the evolution and function of the (i) vaginal cuticularized structure and (ii) accessory organs among planocerid flatworms.

Keywords

Eversible cirrusflatwormphylogenyStylochoideataxonomytraumatic mating
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 101 , Issue 1 , February 2021 , pp. 81 - 88
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press on behalf of the Microscopy Society of America

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References

Akaike, H (1974) A new look at the statistical model identification. IEEE Transactions on Automatic Control 19, 716–723.CrossRefGoogle Scholar
Bulnes, VN (2010) Five new Polycladida (Platyhelminthes: Acotylea) species from the Aegean Sea with remarks on the prostatic structures. Journal of Natural History 44, 515–544.CrossRefGoogle Scholar
Castresana, J (2002) Gblocks, v. 0.91 b. Online version. Available at http://molevol.cmima.csic.es/castresana/Gblocks_server.html (Accessed 1 April 2020).Google Scholar
Chernomor, O, von Haeseler, A and Minh, BQ (2016) Terrace aware data structure for phylogenomic inference from supermatrices. Systematic Biology 65, 997–1008.CrossRefGoogle ScholarPubMed
Dittmann, IL, Cuadrado, D, Aguado, MT, Noreña, C and Egger, B (2019) Polyclad phylogeny persists to be problematic. Organisms Diversity and Evolution 19, 585–608.CrossRefGoogle Scholar
Faubel, A (1983) The Polycladida, Turbellaria. Proposal and establishment of a new system. Part I. The Acotylea. Mitteilungen des Hamburgischen Zoologischen Museums und Instituts 80, 17–121.Google Scholar
Faubel, A (1984) The Polycladida, Turbellaria. Proposal and establishment of a new system. Part II. The Cotylea. Mitteilungen des Hamburgischen Zoologischen Museums und Instituts 81, 189–259.Google Scholar
Hyman, LH (1953) Some polyclad flatworms from the Galapagos Islands. Allan Hancock Pacific Expeditions 15, 183–210.Google Scholar
Jacubowa, L (1907) A new species of Planocera (P. gilchristi) from South Africa. Transactions of the South African Philosophical Society 17, 145–149.CrossRefGoogle Scholar
Kamimura, Y (2012) Correlated evolutionary changes in Drosophila female genitalia reduce the possible infection risk caused by male copulatory wounding. Behavioral Ecology and Sociobiology 66, 1107–1114.CrossRefGoogle Scholar
Kato, K (1937) Polyclads collected in Idu, Japan. Japanese Journal of Zoology 7, 211–232.Google Scholar
Kato, K (1944) Polycladida of Japan. Journal of Sigenkagaku Kenkyusyo 1, 257–319.Google Scholar
Katoh, K and Standley, DM (2013) MAFFT Multiple sequence alignment software version 7: improvements in performance and usability. Molecular Biology and Evolution 30, 772–780.CrossRefGoogle ScholarPubMed
Kumar, S, Stecher, G and Tamura, K (2016) MEGA7: molecular evolutionary genetics analysis version 7.0 for bigger datasets. Molecular Biology and Evolution 33, 1870–1874.CrossRefGoogle ScholarPubMed
Lanfear, R, Calcott, B, Ho, SY and Guindon, S (2012) Partitionfinder: combined selection of partitioning schemes and substitution models for phylogenetic analyses. Molecular Biology and Evolution 29, 1695–1701.CrossRefGoogle ScholarPubMed
Lanfear, R, Frandsen, PB, Wright, AM, Senfeld, T and Calcott, B (2016) Partitionfinder 2: new methods for selecting partitioned models of evolution for molecular and morphological phylogenetic analyses. Molecular Biology and Evolution 34, 772–773.Google Scholar
Lang, A (1884) Die Polycladen (Seeplanarien) des Golfes von Neapel und der Angrenzenden Meeresabschnitte. Eine Monographie. Leipzig: W. Engelmann.Google Scholar
Lange, R, Reinhardt, K, Michiels, NK and Anthes, N (2013) Functions, diversity, and evolution of traumatic mating. Biological Reviews 88, 585–601.CrossRefGoogle ScholarPubMed
Litvaitis, MK, Bolaños, DM and Quiroga, SY (2019) Systematic congruence in Polycladida (Platyhelminthes, Rhabditophora): are DNA and morphology telling the same story? Zoological Journal of the Linnean Society 186, 865–891.CrossRefGoogle Scholar
Nguyen, LT, Schmidt, HA, von Haeseler, A and Minh, BQ (2015) IQ-TREE: a fast and effective stochastic algorithm for estimating maximum-likelihood phylogenies. Molecular Biology and Evolution 32, 268–274.CrossRefGoogle ScholarPubMed
Oya, Y and Kajihara, H (2019) A new species of Phaenoplana (Platyhelminthes: Polycladida) from the Ogasawara Islands. Species Diversity 24, 1–6.CrossRefGoogle Scholar
Oya, Y and Kajihara, H (2020) Molecular phylogenetic analysis of Acotylea (Platyhelminthes: Polycladida). Zoological Science 37, 271–279.CrossRefGoogle Scholar
Palombi, A (1939) Turbellaria del Sud Africa. Policladi di East London. Terzo contributo. Archivio Zoologico Italiano 28, 123–149.Google Scholar
Prudhoe, S (1985) A Monograph on Polyclad Turbellaria. Oxford: Oxford University Press.Google Scholar
Rawlinson, KA, Marcela Bolaños, D, Liana, MK and Litvaitis, MK (2008) Reproduction, development and parental care in two direct-developing flatworms (Platyhelminthes: Polycladida: Acotylea). Journal of Natural History 42, 2173–2192.CrossRefGoogle Scholar
Rönn, J, Katvala, M and Arnqvist, G (2007) Coevolution between harmful male genitalia and female resistance in seed beetles. Proceedings of the National Academy of Sciences USA 104, 10921–10925.CrossRefGoogle ScholarPubMed
Ronquist, F and Huelsenbeck, JP (2003) MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19, 1572–1574.CrossRefGoogle ScholarPubMed
Yeri, M and Kaburaki, T (1918) Description of some Japanese polyclad Turbellaria. Journal of the College of Science, Tokyo Imperial University 39, 1–54.Google Scholar