Ontogeny as an important part of integrative taxonomy in tergipedid aeolidaceans (Gastropoda: Nudibranchia) with a description of a new genus and species from the Barents Sea

Zootaxa ◽  
2017 ◽  
Vol 4324 (1) ◽  
pp. 1 ◽  
Author(s):  
TATIANA KORSHUNOVA ◽  
ALEXANDER MARTYNOV ◽  
BERNARD PICTON
Keyword(s):  
New Genus ◽  
Barents Sea ◽  
Molecular Data ◽  
Integrative Taxonomy ◽  
Traditional Group ◽  
The Family ◽  
Molecular Phylogenetic ◽  
Distinct Unit ◽  
Single Genus ◽  
Morphological And Molecular Data

The taxonomy of aeolidacean nudibranchs of the traditional group previously known as Tergipedidae is discussed. To integrate the diverse molecular phylogenetic pattern and morphological disparity in a broadly ontogenetic context a revised classification at the family level is presented. The families Calmidae Iredale & O'Donoghue, 1923, Eubranchidae Odhner, 1934, Fionidae Gray, 1857 s. str. (restricted, with the genus Fiona only), and Tergipedidae Bergh, 1889 s.str. (restricted, with inclusion of the genus Tergipes only) are restored. The families Cuthonidae Odhner, 1934 s.str. (restricted, with only single genus Cuthona), Cuthonellidae Miller, 1971, stat. nov., and Trinchesiidae Nordsieck, 1972 (with inclusion of the genera Catriona, Diaphoreolis, Phestilla, Tenellia, Trinchesia) are reinstated. At the genus level, the family Trinchesiidae appears as a most diverse assemblage that needs to be further divided. In the present study, the “Eolis” pustulata species complex is particularly investigated, including description of a new ontogenetically different species Zelentia ninel sp. nov. “Eolis” pustulata Alder & Hancock, 1854 and two closely related species are morphologically well separated from Trinchesia s. str. (absence of foot corners, narrow radular teeth) and form a distinct molecular phylogenetic clade basal to all the other Trinchesiidae. Therefore, this group is a distinct unit according to both morphological and molecular data and is separated here as a new genus, Zelentia gen. nov. The genus Catriona is also briefly discussed and the valid status of the species Catriona aurantia (Alder et Hancock, 1842) stat. nov. is confirmed. 

Sinalliaria, a new genus of Brassicaceae from eastern China, based on morphological and molecular data

Phytotaxa ◽  
2014 ◽  
Vol 186 (4) ◽  
pp. 188 ◽  
Author(s):  
Ying-Ying Zhou ◽  
HONG-WEI ZHANG ◽  
JIANG-QIN HU ◽  
Xiao-Feng Jin
Keyword(s):  
Dna Sequences ◽  
New Genus ◽  
Eastern China ◽  
Distinct Group ◽  
Morphological Characters ◽  
Molecular Data ◽  
New Combinations ◽  
The Family ◽  
Morphological And Molecular Data ◽  
Seed Testa

Sinalliaria is described here as a new genus of the family Brassicaceae from eastern China, based on the morphological characters and molecular sequences. Sinalliaria differs from the related genus Orychophragmus in having basal leaves petiolate, simple or rarely with 1‒3 lateral lobes (not pinnatisect); cauline leaves petiolate, cordate at base (not sessile, auriculate or amplexicaul at base); petals obovate to narrowly obovate, claw inconspicuous (not broadly obovate, with a claw as along as sepal); siliques truncate (not long-beaked) at apex. The microscopic characters of seed testa also show significant differences between Sinalliaria and Orychophragmus. Phylogenetic evidence from DNA sequences of nuclear ribosomal ITS and plastid region trnL-trnF indicates that Sinalliaria is a distinct group related to Orychophragmus and Raphanus, but these three genera do not form a clade. The new genus Sinalliaria is endemic to eastern China and has only one species and one variety. The new combinations, S. limprichtiana (Pax) X. F. Jin, Y. Y. Zhou & H. W. Zhang and S. limprichtiana var. grandifolia (Z. X. An) X. F. Jin, Y. Y. Zhou & H. W. Zhang are proposed here.

Aymoreana (Nelsonioideae, Acanthaceae), a New Genus Endemic to Brazil

2021 ◽  
Vol 46 (1) ◽  
pp. 211-217
Author(s):  
Denise Monte Braz ◽  
Thomas F. Daniel ◽  
Carrie Kiel ◽  
Anna Gao ◽  
Sagrika Jawadi ◽  
...  
Keyword(s):  
New Genus ◽  
Molecular Data ◽  
Ecological Data ◽  
Conservation Assessment ◽  
Eastern Brazil ◽  
Molecular Phylogenetic Tree ◽  
Molecular Phylogenetic ◽  
Southern Bahia ◽  
Previously Treated ◽  
Morphological And Molecular Data

Abstract—A species previously treated in Staurogyne (S. nitida) is elevated to the category of a new genus of Acanthaceae, subfamily Nelsonioideae, based on morphological and molecular data. The sole species, Aymoreana nitida, occurs in the Atlantic Forest of eastern Brazil, from southern Bahia to northern Espírito Santo. Aymoreana differs from other genera of Nelsonioideae by the combination of the calyx with subequal segments, the slightly zygomorphic corolla, the four didynamous stamens, and the asymmetric gynoecium. Morphological information is accompanied by a molecular phylogenetic tree, ecological data, a preliminary conservation assessment, and illustrations.

The American Proteaceae

1998 ◽  
Vol 11 (4) ◽  
pp. 287 ◽  
Author(s):  
Ghillean T. Prance ◽  
Vanessa Plana
Keyword(s):  
South America ◽  
Molecular Data ◽  
Central American ◽  
General Distribution ◽  
South American ◽  
Land Bridge ◽  
Eastern Brazil ◽  
The Family ◽  
Single Genus ◽  
Morphological And Molecular Data

The American Proteaceae are outliers from the main centres of diversity of the family in Australia and South Africa. There are about 83 species in eight genera which all belong to the monophyletic subfamily Grevilleoideae. Three genera, Embothrium, Oreocallis and Lomatia, are placed in the tribe Embothrieae (sensu Johnson and Briggs), four Euplassa, Gevuina, Panopsis and Roupala in the Macadamieae and the single genus Orites in the Oriteae. There are five genera endemic to America and three also have species in Australia and New Guinea (Gevuina, Lomatia and Orites). The Proteaceae appear to have arrived in South America via two routes. The larger genera Euplassa, Panopsis and Roupala, which are all endemic to America and have a general distribution in northern South America and south-eastern Brazil, are derived from Gondwanaland before it separated from South America. The remaining genera are distributed either in temperate South America or in the high Andes and appear to have arrived more recently via the Australia–Antarctica–South American connection. Three of these genera have species in both regions. The centres of species diversity of Euplassa, Panopsis and Roupala fall outside hypothesised forest refugia, indicating that they are not true rainforest species but species of seasonal habitats like those achieved at higher altitudes where they are commonly found. Two genera,Panopsis and Roupala, have reached Central America after the central American land bridge was formed six million years ago. The exact relationship to genera on other continents is still unclear and there is a need for a cladistic biogeographic analysis of the group based on both morphological and molecular data.

scholarly journals Undiscovered Biodiversity of the European Moss Flora: Neodicranella hamulosa (Aongstroemiaceae), a New Genus and Species from SW Portugal

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2289
Author(s):  
Ronald D. Porley ◽  
Vladimir Fedosov ◽  
Vítězslav Plášek ◽  
Alina Fedorova
Keyword(s):  
New Genus ◽  
Novel Species ◽  
Molecular Data ◽  
New Taxon ◽  
New Genus And Species ◽  
The Family ◽  
Bioclimatic Zone ◽  
Morphological And Molecular Data ◽  
Sw Portugal

A new genus is described to accommodate Neodicranella hamulosa, a novel species resolved in the family Aongstroemiaceae, from the Monchiquense district in SW Portugal. Characterized by its small size, erect spreading to subsecund non-sheathing leaves, plane bistratose leaf margins, and rhizoidal gemmae with slightly protruberant cells, it differs from all other European Dicranellaceae in the uniquely patterned distal peristome segments with backward-pointing papillae resembling hooked barbs. The species appears to be endemic to the sub-Mediterranean bioclimatic zone, in wooded biomes where humidity remains relatively high throughout the year. Morphological and molecular data strongly support the singularity of this new taxon. The species is illustrated by photomicrographs and SEM, and its ecology and conservation are discussed.

A new genus and some new species of the genus Lauriea Baba, 1971 (Crustacea, Decapoda, Galatheidae) from the Pacific and Indian Oceans, using molecular and morphological characters

Zootaxa ◽  
2013 ◽  
Vol 3599 (2) ◽  
pp. 136-160 ◽  
Author(s):  
ENRIQUE MACPHERSON ◽  
AYMEE ROBAINAS-BARCIA
Keyword(s):  
New Species ◽  
New Genus ◽  
French Polynesia ◽  
Morphological Characters ◽  
Molecular Data ◽  
The Pacific ◽  
The Family ◽  
Morphological And Molecular Data

The genus Lauriea belongs to the family Galatheidae and is easily differentiated from other genera of the family by the endopod of the uropod being much wider than long and the dactyli of the walking legs being curved and strongly biunguiculate. Examination of many specimens collected during recent expeditions from Madagascar to French Polynesia and using morphological and molecular data revealed the existence of six species, five of them new, that are genetically distinct yet morphologically very similar. Furthermore, another new species, having a triunguiculate P2–4 dactyli, represents a new genus, Triodonthea.

Saprobic Dothideomycetes in Thailand: Neoaquastroma gen. nov. (Parabambusicolaceae) introduced based on morphological and molecular data

Phytotaxa ◽  
2017 ◽  
Vol 302 (2) ◽  
pp. 133 ◽  
Author(s):  
DHANUSHKA N. WANASINGHE ◽  
KEVIN D. HYDE ◽  
SIRINAPA KONTA ◽  
CHAIWAT TO-ANUN ◽  
E.B. GARETH JONES
Keyword(s):  
New Genus ◽  
Morphological Character ◽  
Molecular Data ◽  
Its Sequence ◽  
Comprehensive Description ◽  
Northern Thailand ◽  
Novel Genus ◽  
The Family ◽  
Morphological And Molecular Data

In this paper we introduce Neoaquastroma, a novel genus from dead twigs, collected in northern Thailand. The genus is characterized by immersed, globose to subglobose or irregular-shaped ascomata, short papillate ostioles, a thin peridium, clavate asci with short pedicels, and multi-septate, hyaline ascospores with guttules in each cell. The morphological character differences and analyses of combined LSU, TEF, SSU and ITS sequence datasets, from a single ascospore isolate, support the validity of the new genus and its placement in Parabambusicolaceae. The new genus is compared with other genera in the family and a comprehensive description, and micrographs are provided.

Opening the Trojan horse: phylogeny of Astyanax, two new genera and resurrection of Psalidodon (Teleostei: Characidae)

2020 ◽  
Author(s):  
Guillermo E Terán ◽  
Mauricio F Benitez ◽  
J Marcos Mirande
Keyword(s):  
Molecular Markers ◽  
Phylogenetic Relationships ◽  
Type Species ◽  
New Genus ◽  
Morphological Characters ◽  
Molecular Data ◽  
Neotropical Region ◽  
New Genera ◽  
The Family ◽  
Morphological And Molecular Data

Abstract The freshwater fish genus Astyanax is one of the most diverse among the Characidae. The genus is defined by a combination of character states that are widely distributed in Characidae. In addition, the genus has the broadest geographical distribution in the family, being found in a great variety of environments of the Neotropical region. Although phylogenetic relationships were treated only partially, many authors agree that the genus is not monophyletic. In this contribution, we study the phylogenetic relationships of Astyanax in the context of the family Characidae, by combining morphological and molecular data. A total of 520 morphological characters, nine molecular markers and 608 taxa are analysed, of which 98 belong to Astyanax. According to our results, Astyanax is not monophyletic. We recovered species attributed to Astyanax in different subfamilies: Gymnocharacinae (including the type species), Stevardiinae and Tetragonopterinae. Among the species recovered in Gymnocharacinae, most (including the type species, the resurrected Psalidodon, and the new genus Andromakhe gen. nov.) were recovered in Gymnocharacini, while the remaining ones were recovered in Probolodini (transferred to Deuterodon or the new genus Makunaima gen. nov.).

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

2019 ◽  
Vol 94 ◽  
Author(s):  
S.V. Shchenkov ◽  
S.A. Denisova ◽  
G.A. Kremnev ◽  
A.A. Dobrovolskij
Keyword(s):  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Data ◽  
Phylogenetic Position ◽  
The Family ◽  
Family Level ◽  
Molecular Phylogenetic ◽  
Morphological And Molecular Data ◽  
First Time

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.

scholarly journals Kryptonesticus deelemanae gen. et sp. nov. (Araneae, Nesticidae), with notes on the Mediterranean cave species

2017 ◽  
Author(s):  
Martina Pavlek ◽  
Carles Ribera
Keyword(s):  
New Species ◽  
New Genus ◽  
Molecular Data ◽  
New Combinations ◽  
Closely Related Species ◽  
The Family ◽  
Morphological And Molecular Data ◽  
High Degree ◽  
A New Species ◽  
Subterranean Environment

This paper describes and illustrates a new genus and a new species belonging to the family Nesticidae based on morphology and supported by molecular data. The new genus, Kryptonesticus gen. nov., groups eight species spread from Bulgaria and Turkey to Croatia, including Montenegro, Bosnia and Herzegovina and Crete. As a result, seven new combinations are proposed: K. eremita (Simon, 1879) comb. nov., K. arenstorffi (Kulczyński, 1914) comb. nov., K. fagei (Kratochvíl, 1933) comb. nov., K. beroni (Deltshev, 1977) comb. nov., K. beshkovi (Deltshev, 1979) comb. nov., K. henderickxi (Bosselaers, 1998) comb. nov. and K. dimensis (López-Pancorbo, Kunt & Ribera, 2013) comb. nov., all ex Nesticus. Kryptonesticus deelemanae gen. et sp. nov. is described on the basis of both sexes and its phylogenetic relationships with closely related species are discussed based on morphological and molecular data (the cox1, rrn and H3 genes). In addition, the species of this new genus (except for K. eremita) are clear candidates for protection: they have highly restricted ranges and some of them show a high degree of adaptation to the subterranean environment.

Morphological and molecular characterization of an enigmatic clinostomid trematode (Digenea: Clinostomidae) parasitic as metacercariae in the body cavity of freshwater fishes (Cichlidae) across Middle America

2018 ◽  
Vol 93 (04) ◽  
pp. 461-474 ◽  
Author(s):  
R. Briosio-Aguilar ◽  
M. García-Varela ◽  
D.I Hernández-Mena ◽  
M. Rubio-Godoy ◽  
G. Pérez-Ponce de León
Keyword(s):  
Phylogenetic Relationships ◽  
Freshwater Fishes ◽  
Molecular Data ◽  
Body Cavity ◽  
The Body ◽  
Valid Species ◽  
The Family ◽  
Middle America ◽  
Molecular Phylogenetic ◽  
Morphological And Molecular Data

AbstractThe family Clinostomidae Lühe, 1901 contains 29 species allocated to seven genera, of whichClinostomumLeidy, 1856 is the most diverse, withc.14 valid species. The diversity ofClinostomumhas been assessed, combining morphological and molecular data. The genetic library for species in this genus has increased steadily, although there is little or no information for the other genera included in the family. Molecular phylogenetic relationships among the genera of clinostomids have not been assessed, and their classification is still based on morphological traits. The monotypicIthyoclinostomumwas described from a fish-eating bird in Brazil, and its metacercariae have been found in several locations in South America, parasitizing erythrinid freshwater fishes. We collected unusually large metacercariae from the body cavity of cichlids in several locations across Middle America. These metacercariae exhibited some resemblance toIthyoclinostomum, although several differences prevent their inclusion inIthyoclinostomum dimorphum, casting doubt on their taxonomic identification. The main objective of this paper was to characterize the metacercariae collected in cichlids using both morphology and molecular data from three molecular markers, and to assess the molecular phylogenetic relationships among the genera of Clinostomidae to establish the position of the newly generated sequences. We took a conservative position and tentatively placed the metacercariae as belonging toIthyoclinostomum.

Sign in / Sign up

Export Citation Format

Share Document