Five new morphological types of virgulate and microcotylous xiphidiocercariae based on morphological and molecular phylogenetic analyses

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Five new morphological types of virgulate and microcotylous xiphidiocercariae based on morphological and molecular phylogenetic analyses. / Shchenkov, S.V.; Denisova, S.A.; Kremnev, G.A.; Dobrovolskij, A.A.

In: Journal of Helminthology, Vol. 94, e94, 2020.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{5d898161a99f474d8c44f8b233f0756b,

title = "Five new morphological types of virgulate and microcotylous xiphidiocercariae based on morphological and molecular phylogenetic analyses",

abstract = "The phylogenetic position of most xiphidiocercariae from subgroups Cercariae virgulae and Cercariae microcotylae remains unknown or unclear, even at the family level. In this paper, we studied the morphology and molecular phylogeny of 15 microcotylous and virgulate cercariae (11 new and four previously described ones). Based on morphological and molecular data, we suggested five distinct morphological types of xiphidiocercariae, which are a practical alternative to Cercariae virgulae and Cercariae microcotylae subgroups. Four of these types correspond to actual digenean taxa (Microphallidae, Lecithodendriidae, Pleurogenidae and Prosthogonimidae), while the fifth is represented by Cercaria nigrospora Wergun, 1957, which we classified on the basis of molecular data for the first time. We reassessed the relative importance of morphological characters used for the classification of virgulate and microcotylous cercariae, and discussed the main evolutionary trends within xiphidiocercariae. Now stylet cercariae can be reliably placed into several sub-taxa of Microphalloidea on the basis of their morphological features.",

keywords = "Cercariae microcotylae, Cercariae virgulae, Microphalloidea, Xiphidiocercariae, molecular phylogeny, morphology, taxonomic identity, TREMATODE CERCARIAE, DIGENEA, LARVAL TREMATODES, FRESH-WATER SNAILS, SYSTEMATIC POSITION, FAMILY, SEQUENCE ALIGNMENT, PLATYHELMINTHES",

author = "S.V. Shchenkov and S.A. Denisova and G.A. Kremnev and A.A. Dobrovolskij",

year = "2020",

doi = "10.1017/S0022149X19000853",

language = "English",

volume = "94",

journal = "Journal of Helminthology",

issn = "0022-149X",

publisher = "Cambridge University Press",

}

RIS

TY - JOUR

T1 - Five new morphological types of virgulate and microcotylous xiphidiocercariae based on morphological and molecular phylogenetic analyses

AU - Shchenkov, S.V.

AU - Denisova, S.A.

AU - Kremnev, G.A.

AU - Dobrovolskij, A.A.

PY - 2020

Y1 - 2020

N2 - The phylogenetic position of most xiphidiocercariae from subgroups Cercariae virgulae and Cercariae microcotylae remains unknown or unclear, even at the family level. In this paper, we studied the morphology and molecular phylogeny of 15 microcotylous and virgulate cercariae (11 new and four previously described ones). Based on morphological and molecular data, we suggested five distinct morphological types of xiphidiocercariae, which are a practical alternative to Cercariae virgulae and Cercariae microcotylae subgroups. Four of these types correspond to actual digenean taxa (Microphallidae, Lecithodendriidae, Pleurogenidae and Prosthogonimidae), while the fifth is represented by Cercaria nigrospora Wergun, 1957, which we classified on the basis of molecular data for the first time. We reassessed the relative importance of morphological characters used for the classification of virgulate and microcotylous cercariae, and discussed the main evolutionary trends within xiphidiocercariae. Now stylet cercariae can be reliably placed into several sub-taxa of Microphalloidea on the basis of their morphological features.

AB - The phylogenetic position of most xiphidiocercariae from subgroups Cercariae virgulae and Cercariae microcotylae remains unknown or unclear, even at the family level. In this paper, we studied the morphology and molecular phylogeny of 15 microcotylous and virgulate cercariae (11 new and four previously described ones). Based on morphological and molecular data, we suggested five distinct morphological types of xiphidiocercariae, which are a practical alternative to Cercariae virgulae and Cercariae microcotylae subgroups. Four of these types correspond to actual digenean taxa (Microphallidae, Lecithodendriidae, Pleurogenidae and Prosthogonimidae), while the fifth is represented by Cercaria nigrospora Wergun, 1957, which we classified on the basis of molecular data for the first time. We reassessed the relative importance of morphological characters used for the classification of virgulate and microcotylous cercariae, and discussed the main evolutionary trends within xiphidiocercariae. Now stylet cercariae can be reliably placed into several sub-taxa of Microphalloidea on the basis of their morphological features.

KW - Cercariae microcotylae

KW - Cercariae virgulae

KW - Microphalloidea

KW - Xiphidiocercariae

KW - molecular phylogeny

KW - morphology

KW - taxonomic identity

KW - TREMATODE CERCARIAE

KW - DIGENEA

KW - LARVAL TREMATODES

KW - FRESH-WATER SNAILS

KW - SYSTEMATIC POSITION

KW - FAMILY

KW - SEQUENCE ALIGNMENT

KW - PLATYHELMINTHES

UR - http://www.scopus.com/inward/record.url?scp=85072920375&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/2af5f8f4-f7d6-33fe-8a72-b24976280cb7/

U2 - 10.1017/S0022149X19000853

DO - 10.1017/S0022149X19000853

M3 - Article

VL - 94

JO - Journal of Helminthology

JF - Journal of Helminthology

SN - 0022-149X

M1 - e94

ER -

ID: 49234146