Phylogenetic relationships of the intertidal genus Halorhadinus Sawada and key to the genera of the Liparocephalini (Coleoptera: Staphylinidae: Aleocharinae)

2001 ◽  
Vol 32 (2) ◽  
pp. 123-132 ◽  
Author(s):  
Kee-Jeong Ahn
Keyword(s):  
Phylogenetic Relationships ◽  
Anterior Margin ◽  
Cladistic Analysis ◽  
Basal Part ◽  
Diagnostic Features ◽  
First Time ◽  
Generic Relationships

AbstractHalorhadinus Sawada is redescribed and illustrations of diagnostic features are presented. Median lobes and parameres of H. aequalis Sawada and H. inaequalis Sawada are described for the first time. A key is provided for separation of the known species of Halorhadinus. Based on contiguous mesocoxal cavities, galea with several setae only on mesal surface and apex with setae, Halorhadinus is hypothesized to be a member of the tribe Liparocephalini. A revised cladistic analysis of the Liparocephalini based on 50 adult characters suggests that Halorhadinus belong to the Liparocephalini with the following patterns of generic relationships (outgroup (Salinamexus Moore & Legner (Halorhadinus Sawada (Amblopusa Casey (Paramblopusa Ahn &Ashe (Diaulota Casey + Liparocephalus Mäklin)))))). Monophyly of the genus Halorhadinus is supported by three synapomorphies (mentum with anterior margin deeply sinuate and antero-lateral parts triangular; ligula round and very long, almost reaching to half of palpi; spatulate setae mostly located on basal part of palpi). A key to the genera of the Liparocephalini is given.

Phylogenetic relationships of Leuronectes Sharp (Coleoptera: Dytiscidae: Agabinae) based on larval morphology and chaetotaxy

2009 ◽  
Vol 40 (2) ◽  
pp. 209-228 ◽  
Author(s):  
Miguel Archangelsky ◽  
Mariano Michat
Keyword(s):  
Phylogenetic Relationships ◽  
Abdominal Segment ◽  
Anterior Margin ◽  
Cladistic Analysis ◽  
Lateral Margin ◽  
Larval Morphology ◽  
The Third ◽  
Segment Viii ◽  
First Time ◽  
Diving Beetle

AbstractThe phylogenetic relationships of the diving beetle (Dytiscidae) genus Leuronectes Sharp are revised based on a cladistic analysis of seven Agabinae genera and 54 morphological and chaetotaxic characters from larvae. For this purpose, larvae of L. curtulus Régimbart are described and illustrated in detail for the first time, with particular emphasis on morphometry and chaetotaxy. The results show that Leuronectes is well placed within Agabinae based on the absence of natatory setae on tibia and tarsus in instars II and III, the urogomphus composed of two urogomphomeres, and the absence of secondary setae on urogomphus. Leuronectes is resolved as part of a basal polytomy along with Platynectes Régimbart and a clade formed by the remaining agabine genera. Leuronectes shares with Platynectes the setae UR2, UR3 and UR4 not inserted contiguously, with Platambus Thomson the anterolateral lobes of frontoclypeus not projected beyond anterior margin, with Hydrotrupes Sharp the seta AB9 inserted dorsolaterally, and with Ilybius Erichson the seta LA10 inserted submedially. Leuronectes is unique within Agabinae in having the apical lateroventral process of the third antennomere not protruding and additional ventroapical pores on third antennomere, and is unique within the dytiscid genera studied in having the seta LA12 inserted submedially and one additional spine-like seta inserted on the lateral margin of abdominal segment VIII.

Morphology and anatomy of Ophioglossum reticulatum

1968 ◽  
Vol 46 (8) ◽  
pp. 957-968 ◽  
Author(s):  
U. Sen
Keyword(s):  
Basal Part ◽  
Leaf Trace ◽  
Diagnostic Features ◽  
Spore Form ◽  
Single Leaf ◽  
First Time ◽  
Adult Plants ◽  
Morphological Nature

The anatomy and morphology of Ophioglossum reticulatum L., the specific validity of which has been in dispute, is described in detail for the first time. Important diagnostic features of the species are the presence of a cauline stele in the basal part of the stem, while in the upper part it is impossible to distinguish the cauline from the foliar strands. A single leaf trace is always found in both young and adult plants. The roots are usually monarch or less frequently diarch. The muri on the exine of the spore form a continuous reticulum and are of uniform height. The morphological nature of the fertile spike is reinterpreted. Relationship to other ferns is discussed.

Revision and cladistic analysis of the genus Ptychoderes Schoenherr, 1823 (Coleoptera, Anthribidae, Anthribinae, Ptychoderini)

Zootaxa ◽  
2006 ◽  
Vol 1182 (1) ◽  
pp. 1 ◽  
Author(s):  
JOSÉ RICARDO M. MERMUDES ◽  
DILMA SOLANGE NAPP
Keyword(s):  
Phylogenetic Relationship ◽  
Geographical Distribution ◽  
Phylogenetic Relationships ◽  
Type Species ◽  
Cladistic Analysis ◽  
Wing Venation ◽  
Key To Species ◽  
Male And Female ◽  
New Synonyms ◽  
First Time

A review and cladistic analysis of the genus Ptychoderes Schoenherr, 1823 is presented. The genus and the following seventeen known species are redescribed: P. nebulosus (Olivier, 1795) (type species), P. elongatus (Germar, 1824), P. viridanus Boheman, 1833, P. virgatus Fåhraeus, 1839, P. obsoletus Jekel, 1855, P. depressus Jekel, 1855, P. mixtus Jekel, 1855, P. callosus Jekel, 1855, P. antiquus Jekel, 1855, P. brevis Jordan, 1894, P. longicollis Jordan, 1894, P. bivittatus Jordan, 1894, P. rugicollis Jordan, 1895, P. jordani Frieser, 1959, P. crustatus Frieser, 1988, P. magnus Mermudes & Napp, 2004 and P. jekeli Mermudes & Napp, 2004. New synonyms are proposed: Ptychoderes nebulosus (Olivier, 1795) = Ptychoderes tricostifrons Fåhraeus, 1839 syn. nov. = Ptychoderes columbianus Jekel, 1855 syn. nov.; and Ptychoderes antiquus Jekel, 1855 = Ptychoderes affinis Jordan, 1894 syn. nov. A key to species and maps of their geographical distribution are provided. The cladistic analysis with 24 taxa and 50 characters from body vestiture, external morphology, wing venation, male and female terminalia and rectal loop, resulted in a single cladogram showing, for the first time, a hypothesis of phylogenetic relationship  among genera of Anthribinae. The analysis included the seventeen species of Ptychoderes, as defined in the taxonomic review, along with the type species of the genera presently considered as belonging to Ptychoderini Jekel, 1855: Cerambyrhynchus schoenherri Montrouzier, 1855, Phloepemon acuticornis (Fabricius), Phloeotragus heros (Fabricius), Tribotropis prasinata (Fåhraeus, 1839), Hypselotropis annulicornis (Fåhraeus, 1839) and Unanthribus maximus Mermudes, 2003. A hypothesis of the phylogenetic relationships among the Neotropical genera of Ptychoderini is presented in parenthetical notation: ((Tribotropis + Hypselotropis) (Unanthribus + Ptychoderes)). The monophyly of Ptychoderes is supported by 14 synapomorphies and its interrelationships are as follows: ((P. crustatus (P. brevis + P. jekeli)) ((P. longicollis (P. jordani (P. obsoletus+P. magnus) (P. depressus+P. virgatus))) (P. mixtus (P. bivittatus ((P. callosus+P. rugicollis) (P. viridanus (P. antiquus (P. elongatus+P. nebulosus)))))))).

New species, redescriptions and phylogenetic revision of tribe Dacini (Diptera: Tephritidae: Dacinae) from India based on morphological characters

Zootaxa ◽  
2019 ◽  
Vol 4551 (2) ◽  
pp. 101 ◽  
Author(s):  
K. J. DAVID ◽  
S. RAMANI
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
Cladistic Analysis ◽  
Sister Group ◽  
Morphological Characters ◽  
Plant Character ◽  
The World ◽  
Two New Species ◽  
First Time ◽  
Phylogenetic Revision

The tribe Dacini comprising four genera, namely Bactrocera Macquart, Dacus Fabricius, Monacrostichus Bezzi and Zeugodacus Hendel, is a derived lineage in Tephritidae. It is one of the most economically important tribes in Tephritidae harbouring several species of quarantine concern across the world. We describe two new species of Bactrocera Macquart, B. (Parazeugodacus) conica David & Ramani, sp. n. & B. (B.) prabhui David, sp. n. from India. Postabdominal structures of males and/or females of 23 species of Bactrocera, 16 species of Zeugodacus and 8 species of Dacus from India are illustrated and described for the first time, which revealed similarities between Dacus and Zeugodacus with respect to epandrial shape and praeputium patterning. Bactrocera is unique in possessing oval shaped epandrium and an unpatterned praeputium. An analysis of phylogenetic relationships between three genera of the tribe Dacini from India based on morphological characters has been attempted for the first time. Cladistic analysis employing 51 characters of 62 species in Dacini, with seven species as outgroups revealed the monophyly of Dacini, Bactrocera and Dacus with supporting nonhomplasious synapomorphies. Ichneumonopsis Hardy, often included in the Gastrozonini, does not possess any synapomorphies of Dacini, eventhough it appeared at the base of the Dacini clade. Zeugodacus was retrieved as a monophyletic sister-group to Dacus based solely on a single homoplasious host plant character, with weak statistcal support. 

Phylogenetic revision of Acupalpa Kröber (Diptera: Therevidae)

2000 ◽  
Vol 31 (2) ◽  
pp. 225-240 ◽  
Author(s):  
Shaun L. Winterton
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
Cladistic Analysis ◽  
Morphological Characters ◽  
Female Genitalia ◽  
Male And Female ◽  
Behavioural Characteristics ◽  
First Time ◽  
Phylogenetic Revision ◽  
One New Species

AbstractAcupalpa is revised to include five described species: A. albitarsa Mann, A. divisa (Walker), A. pollinosa Mann, A. rostrata Kröber and A. semirufa Mann, and one new species, A. irwini sp. n. All species are brightly coloured wasp mimics with morphological and behavioural characteristics associated with mimicry of pompilid wasps. A key to genera and species is presented with male and female genitalia described and figured for the first time. All species of Acupalpa were compared in a cladistic analysis with two species of Agapophytus using 34 states across 16 adult morphological characters, which resulted in three most parsimonious trees (length = 58 steps). The phylogenetic relationships of species of Acupalpa are discussed in light of the analysis.

Phylogenetic analysis and preliminary classification of the Parathalassiinae (Diptera: Empidoidea: Dolichopodidae sensu lato)

Zootaxa ◽  
2019 ◽  
Vol 4648 (1) ◽  
pp. 111-129
Author(s):  
JEFFREY M. CUMMING ◽  
SCOTT E. BROOKS
Keyword(s):  
Phylogenetic Analysis ◽  
Phylogenetic Relationships ◽  
Cladistic Analysis ◽  
Species Group ◽  
Group Level ◽  
Present Concept ◽  
Species Groups ◽  
Preliminary Classification ◽  
Generic Relationships

Phylogenetic relationships of the subgroups of Parathalassiinae are presented, based on a morphological cladistic analysis. Worldwide, all known extant genera, species groups and newly discovered undescribed lineages are represented in the analysis. Some previously proposed generic relationships are supported by the analysis, but recognition of many current genera renders the present concept of Microphorella Becker as both paraphyletic and polyphyletic. Microphorella merzi Gatt is here classified in Eothalassius Shamshev & Grootaert, as Eothalassius merzi (Gatt) comb. nov. A preliminary classification with all included extant lineages within the Parathalassiinae (at the genus and species group level) is outlined. The ranking of these lineages is discussed and several species groups of Microphorella may need to be elevated to generic or subgeneric level, whereas some currently recognized genera may need to be relegated to subgenera. 

Phylogenetic revision of Agapophytus Guérin (Diptera : Therevidae : Agapophytinae)

2001 ◽  
Vol 15 (4) ◽  
pp. 467 ◽  
Author(s):  
Shaun L. Winterton ◽  
Michael E. Irwin
Keyword(s):  
Phylogenetic Relationships ◽  
Cladistic Analysis ◽  
Morphological Characters ◽  
First Time ◽  
Phylogenetic Revision

Morphologically diverse and species-rich, the endemic Australasian genus Agapophytus is revised. Eleven previously described species are redescribed and twenty-nine species are described for the first time: A. adonis, sp. nov., A. annamariae, sp. nov., A. antheliogynaion, sp. nov., A. asprolepidotos, sp. nov., A. atrilaticlavius, sp. nov., A. biluteus, sp. nov., A. borealis, sp. nov., A. caliginosus, sp. nov., A. cerrusus, sp. nov., A. chaetohypopion, sp. nov., A. chrysosisyrus, sp. nov., A. decorus, sp. nov., A. dieides, sp. nov., A. discolor, sp. nov., A. eli, sp. nov., A. fenestratum, sp. nov., A. galbicaudus, sp. nov., A. labifenestellus, sp. nov., A. laparoceles, sp. nov., A. lissohoplon, sp. nov., A. lyneborgi, sp. nov., A. notozophos, sp. nov., A. novaeguineae, sp. nov., A. pallidicrus, sp. nov., A. palmulus, sp. nov., A. paramonovi, sp. nov., A. septentrionalis, sp. nov., A. yeatesi, sp. nov. and A. zebra, sp. nov. All 40 species of Agapophytus were compared in a cladistic analysis with three species of Acupalpa Kröber using 134 states across 58 adult morphological characters. The analysis resulted in 36 most parsimonious trees with a length of 240 steps. The phylogenetic relationships of the species of Agapophytus are discussed with three main clades recognised: A. dioctriaeformis clade, A. australasiae clade and A. queenslandi clade.

Larval morphology of the diving beetle Celina and the phylogeny of ancestral hydroporines (Coleoptera:Dytiscidae:Hydroporinae)

2007 ◽  
Vol 21 (3) ◽  
pp. 239 ◽  
Author(s):  
Mariano C. Michat ◽  
Yves Alarie ◽  
Patricia L. M. Torres ◽  
Yoandri S. Megna
Keyword(s):  
Phylogenetic Relationships ◽  
Cladistic Analysis ◽  
Sister Group ◽  
Reduced Form ◽  
Larval Morphology ◽  
Unique Character ◽  
Phylogenetic Studies ◽  
Diving Beetles ◽  
The Family ◽  
First Time

Phylogenetic relationships within diving beetles (Dytiscidae) are imperfectly known. In particular, some authors have considered that the tribe Methlini is included in the subfamily Hydroporinae (a large group including about half of the dytiscid species worldwide), whereas others have argued in favour of excluding Methlini from the Hydroporinae and giving it subfamilial rank. Larval characters have been underutilised in phylogenetic studies, mainly because the larvae of many taxa within the family are still unknown. The larval morphology of the dytiscid tribe Methlini, in particular, remains poorly known. In this study, the phylogenetic relationships among ancestral lineages of the Hydroporinae are investigated based on a cladistic analysis of 34 taxa and 127 morphological larval characters. For this purpose, larvae of the Methlini (Celina parallela (Babington, 1841)) and C. imitatrix Young, 1979) are described and illustrated in detail for the first time, with particular emphasis on morphometry and chaetotaxy. The results show high support for a monophyletic origin of the Hydroporinae, including Methlini, based on eight unique character states. Giving Methlini subfamily rank would leave Hydroporinae with a single unique larval apomorphy. This supports the inclusion of Methlini as a tribe of Hydroporinae. Other interesting but less well supported results include: 1, the clade Laccornini + Hydrovatini + Canthyporus Zimmermann, 1919 (Hydroporini) resolved as the sister-group to the other Hydroporinae minus Methlini; and 2, Hydrovatini and Canthyporus resolved as sister-groups. The presence of a galea, albeit in a reduced form, in larvae of Methlini, Laccornini and Hydrovatini is of the utmost interest. The putative hypothesis of an ancestral position for these genera within Hydroporinae suggests that hydroporines lost the galea secondarily.

Revision and systematic position of the intertidal genus Thinusa Casey (Coleoptera: Staphylinidae: Aleocharinae)

1997 ◽  
Vol 28 (1) ◽  
pp. 75-81 ◽  
Author(s):  
Kee-Jeong Ahn
Keyword(s):  
Phylogenetic Relationships ◽  
Anterior Margin ◽  
Systematic Position ◽  
Distributional Pattern ◽  
Diagnostic Features ◽  
Systematic Revision

AbstractA systematic revision of the genus Thinusa is presented. Thinusa Casey is redescribed. Thinusa fletcheri Casey and T. maritima (Casey) are redescribed. Lectotype and paralectotypes are designated for T. divergens, T. nigra, T. robustula, T. fletcheri, T. obscura and T. maritima from Casey's syntype series deposited in the NMNH. A key is provided for separation of the known species of Thinusa and illustrations of diagnostic features are presented. Based on maxilla with membranous galea, labium with bifid ligula, distributional pattern of pores on mandibles and lacinia, and anterior margin of abdominal tergites III-VI deeply and broadly V-shaped, and athetine bridge, Thinusa is hypothesized to be related to the tribe Athetini rather than the tribe Phytosini. Phylogenetic relationships of the Thinusa are discussed.

scholarly journals Plastid phylogenomics resolves ambiguous relationships within the orchid family and provides a solid timeframe for biogeography and macroevolution

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Maria Alejandra Serna-Sánchez ◽  
Oscar A. Pérez-Escobar ◽  
Diego Bogarín ◽  
María Fernanda Torres-Jimenez ◽  
Astrid Catalina Alvarez-Yela ◽  
...  
Keyword(s):  
Phylogenetic Relationships ◽  
Divergence Times ◽  
Molecular Clocks ◽  
Phylogenetic Placement ◽  
Plastid Genomes ◽  
Phylogenetic Reconstructions ◽  
A Genome ◽  
Tree Models ◽  
Phylogenomic Analyses ◽  
First Time

AbstractRecent phylogenomic analyses based on the maternally inherited plastid organelle have enlightened evolutionary relationships between the subfamilies of Orchidaceae and most of the tribes. However, uncertainty remains within several subtribes and genera for which phylogenetic relationships have not ever been tested in a phylogenomic context. To address these knowledge-gaps, we here provide the most extensively sampled analysis of the orchid family to date, based on 78 plastid coding genes representing 264 species, 117 genera, 18 tribes and 28 subtribes. Divergence times are also provided as inferred from strict and relaxed molecular clocks and birth–death tree models. Our taxon sampling includes 51 newly sequenced plastid genomes produced by a genome skimming approach. We focus our sampling efforts on previously unplaced clades within tribes Cymbidieae and Epidendreae. Our results confirmed phylogenetic relationships in Orchidaceae as recovered in previous studies, most of which were recovered with maximum support (209 of the 262 tree branches). We provide for the first time a clear phylogenetic placement for Codonorchideae within subfamily Orchidoideae, and Podochilieae and Collabieae within subfamily Epidendroideae. We also identify relationships that have been persistently problematic across multiple studies, regardless of the different details of sampling and genomic datasets used for phylogenetic reconstructions. Our study provides an expanded, robust temporal phylogenomic framework of the Orchidaceae that paves the way for biogeographical and macroevolutionary studies.

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