A new subtribal classification of Myrtaceae tribe Chamelaucieae

2020 ◽  
Vol 33 (2) ◽  
pp. 191
Author(s):  
Barbara L. Rye ◽  
Peter G. Wilson ◽  
Margaret M. Heslewood ◽  
Andrew J. Perkins ◽  
Kevin R. Thiele
Keyword(s):  
Phylogenetic Analysis ◽  
Molecular Phylogenetic Analysis ◽  
Morphological Evidence ◽  
New Classification ◽  
Molecular Phylogenetic ◽  
History Of ◽  
Single Genus ◽  
The Creation

A new classification of Myrtaceae tribe Chamelaucieae DC., derived from a molecular phylogenetic analysis based on nr ETS and cp trnK and atpB–rbcL spacer sequences, is presented. Eleven subtribes are recognised, eight of which are new. The currently accepted circumscriptions of subtribes Calytricinae Benth. and ‘Euchamelaucieae Benth.’ (nom. inval.) are retained, with the latter being formally published here as Chamelauciinae Rye & Peter G.Wilson. Subtribe Thryptomeninae Benth. is reduced in size by the creation of the new subtribes Alutinae Rye & Peter G.Wilson and Micromyrtinae Rye & Peter G.Wilson. Subtribe Baeckeinae Schauer is reduced to a single genus, with the excluded genera distributed in the new subtribes Astarteinae Rye & Peter G.Wilson, Hysterobaeckeinae Rye & Peter G.Wilson, Ochrospermatinae Rye & Peter G.Wilson, Rinziinae Rye & Peter G.Wilson and Stenostegiinae Rye & Peter G.Wilson. The history of recognition of the genera and subtribes of Chamelaucieae is outlined and supporting morphological evidence for the new classification discussed.

Redefining the generic limits of Winthemia (Diptera : Tachinidae)

2016 ◽  
Vol 30 (3) ◽  
pp. 274 ◽  
Author(s):  
Diego J. Inclán ◽  
John O. Stireman ◽  
Pierfilippo Cerretti
Keyword(s):  
South Africa ◽  
Phylogenetic Analysis ◽  
Systematic Study ◽  
Type Species ◽  
Genetic Evidence ◽  
Molecular Phylogenetic Analysis ◽  
Molecular Phylogenetic ◽  
Phylogenetic Affinities

One of the major problems hindering the systematic study of tachinid flies is that genera are often poorly defined, making it difficult to unambiguously assign species among closely related genera. Within the tribe Winthemiini, an example of this problem is represented by the unstable classification of the Afrotropical species most recently classified as Smidtia capensis (Schiner). This species has been previously assigned to four different genera on the basis of limited examination and evidence. Here, we evaluate the identity and phylogenetic affinities of this species and other members of the tribe Winthemiini using morphological and molecular phylogenetic analysis. We demonstrate that S. capensis actually belongs to the genus Winthemia Robineau-Desvoidy. We also find that Winthemia is paraphyletic with respect to two monotypic genera, Crypsina (type species Crypsina prima Brauer & Bergenstamm) and Hemiwinthemia (type species Hemiwinthemia calva Villeneuve). On the basis of morphological and genetic evidence, we propose to extend the generic limits of Winthemia to include W. londti, sp. nov. (South Africa), W. capensis (Schiner), comb. nov. (South Africa), W. prima (Brauer & Bergenstamm), comb. nov. (China, Japan, Australia) and W. calva (Villeneuve), comb. nov. (D.R. Congo), thus synonymising with Winthemia the generic names Crypsina, syn. nov. and Hemiwinthemia, syn. nov.

scholarly journals Molecular Phylogenetic Analysis: Design and Implementation of Scalable and Reliable Algorithms and Verification of Phylogenetic Properties

1970 ◽  
Vol 4 ◽  
pp. 17-18
Author(s):  
Jorge Álvarez-Jarreta ◽  
Gregorio De Miguel Casado ◽  
Elvira Mayordomo
Keyword(s):  
Phylogenetic Analysis ◽  
Evolution Process ◽  
Molecular Phylogenetic Analysis ◽  
Computer Methods ◽  
Design And Implementation ◽  
Molecular Phylogenetic ◽  
Nextgeneration Sequencing ◽  
Analysis Design ◽  
The Creation

Since the creation of the bioinformatics field, and even more since the creation of the so called nextgeneration sequencing, the relevance of computer methods and technologies has significantly increased. We here present several contributions we have published as solution for different problems involved in the study of the evolution process.

Three new species of Ametrodiplosis (Diptera: Cecidomyiidae) from Japan, with a key to the Japanese species and a molecular phylogenetic analysis

Zootaxa ◽  
2021 ◽  
Vol 4942 (2) ◽  
pp. 151-172
Author(s):  
AYMAN KHAMIS ELSAYED ◽  
JUNICHI YUKAWA ◽  
KO MOCHIZUKI ◽  
MAKOTO TOKUDA ◽  
ATSUSHI KAWAKITA
Keyword(s):  
Phylogenetic Analysis ◽  
Gall Midge ◽  
Molecular Phylogenetic Analysis ◽  
Japanese Species ◽  
Mitochondrial Coi ◽  
Wide Range ◽  
Molecular Phylogenetic ◽  
History Of ◽  
Plant Families ◽  
Three New Species

Ametrodiplosis Rübsaamen (Diptera: Cecidomyiidae: Clinodiplosini) is a mostly Holarctic gall midge genus whose species are associated with a wide range of seed plant families, either as gall-inducers or inquilines. In this study, we describe three species of Ametrodiplosis from Japan: A. adetos n. sp. feeding in the flowers of Tylophora aristolochioides Miq. (Apocynaceae); A. aeroradicis n. sp. inducing aerial root galls on Trachelospermum asiaticum (Sieb. et Zucc.) Nakai and T. gracilipes var. liukiuense (Apocynaceae); and A. stellariae n. sp. forming leaf bud galls on Stellaria uliginosa Murray var. undulata (Thunb.) Ohwi (Caryophyllaceae). A molecular phylogenetic analysis using mitochondrial COI and ribosomal 16S genes and nuclear ribosomal 28S gene were conducted for the three new Ametrodiplisis species and other clinodiplosine taxa sequences available in GenBank. The analysis supported the monophyly of Ametrodiplosis despite the variable life history of the three species. In addition, it indicated very low intraspecific genetic divergence among the individuals from different localities and/or host plants. A taxonomic key to the three new Japanese species of Ametrodiplosis is provided. 

Multilocus phylogeny and a new classification for African, Asian and Indian supple and writhing skinks (Scincidae: Lygosominae)

2019 ◽  
Vol 186 (4) ◽  
pp. 1067-1096 ◽  
Author(s):  
Elyse S Freitas ◽  
Aniruddha Datta-Roy ◽  
Praveen Karanth ◽  
L Lee Grismer ◽  
Cameron D Siler
Keyword(s):  
Southeast Asia ◽  
New Genus ◽  
New Classification ◽  
African Species ◽  
Phylogenetic Studies ◽  
Molecular Phylogenetic ◽  
History Of ◽  
Old World Tropics ◽  
Multilocus Phylogeny

AbstractThe genera Lepidothyris, Lygosoma and Mochlus comprise the writhing or supple skinks, a group of semi-fossorial, elongate-bodied skinks distributed across the Old World Tropics. Due to their generalized morphology and lack of diagnostic characters, species- and clade-level relationships have long been debated. Recent molecular phylogenetic studies of the group have provided some clarification of species-level relationships, but a number of issues regarding higher level relationships among genera still remain. Here we present a phylogenetic estimate of relationships among species in Lygosoma, Mochlus and Lepidothyris generated by concatenated and species tree analyses of multilocus data using the most extensive taxonomic sampling of the group to date. We also use multivariate statistics to examine species and clade distributions in morpho space. Our results reject the monophyly of Lygosoma s.l., Lygosoma s.s. and Mochlus, which highlights the instability of the current taxonomic classification of the group. We, therefore, revise the taxonomy of the writhing skinks to better reflect the evolutionary history of Lygosoma s.l. by restricting Lygosoma for Southeast Asia, resurrecting the genus Riopa for a clade of Indian and Southeast Asian species, expanding the genus Mochlus to include all African species of writhing skinks and describing a new genus in Southeast Asia.

Novelties towards a phylogenetic infrageneric classification of Baccharis (Asteraceae, Astereae)

Phytotaxa ◽  
2016 ◽  
Vol 289 (3) ◽  
pp. 285 ◽  
Author(s):  
GUSTAVO HEIDEN ◽  
JOSÉ RUBENS PIRANI
Keyword(s):  
Phylogenetic Analysis ◽  
New Taxa ◽  
New World ◽  
Molecular Phylogenetic Analysis ◽  
New Combinations ◽  
Infrageneric Classification ◽  
Molecular Phylogenetic ◽  
Genus Two

Names of new taxa, new combinations and names at new rank are proposed for subgenera and sections in Baccharis to move towards a phylogenetic infrageneric classification of this New World genus. Two earlier segregated genera and two previously recognised sections are moved to the subgeneric rank (as B. subgen. Coridifoliae, B. subgen. Heterothalamus, B. subgen. Heterothalamulopsis, and B. subgen. Oblongifoliae). Three new combinations and/or names at new rank are proposed for the following sections: B. sect. Axillares (assigned to B. subgen. Baccharis), B. sect. Heterothalamulopsis (assigned to B. subgen. Heterothalamulopsis), and B. sect. Pluricephalae (assigned to B. subgen Coridifoliae). Four new sections are described to accommodate taxa not corresponding to any previously described section: B. sect. Andina and B. sect. Illinitae (assigned to B. subgen. Baccharis), B. sect. Bradeanae (assigned to B. subgen. Heterothalamus), and B. sect. Polifoliae (assigned to B. subgen. Molina). All taxa here recognized correspond to monophyletic groups based on highly supported clades in a recent molecular phylogenetic analysis.

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