Typification of the name Avena laevigata, the basionym of Avenula pubescens subsp. laevigata (Poaceae)

Avena laevigata Schur (1860: 72) belongs to the taxonomically difficult group of perennial oats whose phylogenetic relationships, systematics, and nomenclature have been reconsidered many times (Holub 1958, 1962, Gervais 1973, Röser 1989, Lange 1995, Conti et al. 2005, Röser et al. 2009, Romero-Zarco 2011). It is affiliated with the generic name Avenula (Dumortier 1824: 122) Dumortier (1868: 68), a taxon accepted in the worldwide phylogenetic classification of the Poaceae (Soreng et al. 2015) and is the basionym of the accepted subspecies name Avenula pubescens (Hudson 1762: 42) Dumortier (1868: 68) subsp. laevigata (Schur) Holub (1976: 295) (Euro+Med 2006 onwards) distributed in the western and southern Alps as well as the southern and eastern Carpathians (Dixon 1991). The nomenclatural type of Avena laevigata (and so that of Avenula pubescens subsp. laevigata) is unknown, hence typification of this name is necessary (McNeill et al. 2012).

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Testing the higher-level phylogenetic classification of Digenea (Platyhelminthes, Trematoda) based on nuclear rDNA sequences before entering the age of the ‘next-generation’ Tree of Life

Journal of Helminthology ◽

10.1017/s0022149x19000191 ◽

2019 ◽

Vol 93 (3) ◽

pp. 260-276 ◽

Cited By ~ 28

Author(s):

G. Pérez-Ponce de León ◽

D.I. Hernández-Mena

Keyword(s):

Phylogenetic Relationships ◽

Phylogenetic Signal ◽

28S Rdna ◽

Rrna Genes ◽

Rrna Gene ◽

28S Rrna ◽

Next Generation ◽

Phylogenetic Classification ◽

Rdna Sequences

AbstractDigenea Carus, 1863 represent a highly diverse group of parasitic platyhelminths that infect all major vertebrate groups as definitive hosts. Morphology is the cornerstone of digenean systematics, but molecular markers have been instrumental in searching for a stable classification system of the subclass and in establishing more accurate species limits. The first comprehensive molecular phylogenetic tree of Digenea published in 2003 used two nuclear rRNA genes (ssrDNA = 18S rDNA and lsrDNA = 28S rDNA) and was based on 163 taxa representing 77 nominal families, resulting in a widely accepted phylogenetic classification. The genetic library for the 28S rRNA gene has increased steadily over the last 15 years because this marker possesses a strong phylogenetic signal to resolve sister-group relationships among species and to infer phylogenetic relationships at higher levels of the taxonomic hierarchy. Here, we have updated the database of 18S and 28S rRNA genes until December 2017, we have added newly generated 28S rDNA sequences and we have reassessed phylogenetic relationships to test the current higher-level classification of digeneans (at the subordinal and subfamilial levels). The new dataset consisted of 1077 digenean taxa allocated to 106 nominal families for 28S and 419 taxa in 98 families for 18S. Overall, the results were consistent with previous higher-level classification schemes, and most superfamilies and suborders were recovered as monophyletic assemblages. With the advancement of next-generation sequencing (NGS) technologies, new phylogenetic hypotheses from complete mitochondrial genomes have been proposed, although their power to resolve deep levels of trees remains controversial. Since data from NGS methods are replacing other widely used markers for phylogenetic analyses, it is timely to reassess the phylogenetic relationships of digeneans with conventional nuclear rRNA genes, and to use the new analysis to test the performance of genomic information gathered from NGS, e.g. mitogenomes, to infer higher-level relationships of this group of parasitic platyhelminths.

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Phylogenetic relationships between genera Dorcadion, Lamia, Morimus, Herophila and some other Lamiinae (Coleoptera: Cerambycidae) based on chromosome and CO1 gene sequence comparison

Bulletin of Entomological Research ◽

10.1017/s0007485319000737 ◽

2019 ◽

Vol 110 (3) ◽

pp. 321-327

Author(s):

Themis Giannoulis ◽

Anne-Marie Dutrillaux ◽

Constantina Sarri ◽

Zissis Mamuris ◽

Bernard Dutrillaux

Keyword(s):

Phylogenetic Relationships ◽

Sequence Comparison ◽

Gene Sequence ◽

Cytogenetic Study ◽

Hybrid Origin ◽

Systematic Classification ◽

Phylogenetic Classification ◽

Distant Relationship ◽

In Captivity

AbstractA dual molecular and cytogenetic study was performed with the aim to improve the controversial systematic classification of some species of Lamiinae (Coleoptera: Cerambycidae). The karyotypes of species belonging to genera Morimus, Herophila, Dorcadion, Neodorcadion and Lamia share a number of characters, which differentiate them from other species, belonging to genera Phytoecia, Parmena and Monochamus. The karyotypes of the last three species comprise 20 chromosomes, mostly metacentric or sub-metacentric, as in the presumed Cerambycidae ancestors. The karyotypes of the former species share many characters derived from the Lamiinae ancestors by a number of chromosome fissions and inversions indicating their monophyly. Comparisons of the CO1 gene sequence also show the monophyly of Morimus, Lamia, Herophila and Dorcadion and their distant relationship with others. These convergent results allow us to propose a phylogenetic classification of these genera, which places the monospecific genus Lamia close to Dorcadion, clearly separates Dorcadion and Neodorcadion and places Herophila closer to Morimus than to Dorcadion/Lamia. The genus Morimus is the most derived. CO1 mutations loosely separate the forms M. asper and M. funereus, which have similar karyotypes and behaviour and copulate in captivity. The form M. ganglebaueri may have a funereus X asper hybrid origin.

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Phylogenetic classification of extant genera of fishes of the order Cypriniformes (Teleostei: Ostariophysi)

Zootaxa ◽

10.11646/zootaxa.4476.1.4 ◽

2018 ◽

Vol 4476 (1) ◽

pp. 6 ◽

Cited By ~ 33

Author(s):

MILTON TAN ◽

JONATHAN W. ARMBRUSTER

Keyword(s):

Phylogenetic Relationships ◽

Freshwater Fishes ◽

New Taxon ◽

Phylogenetic Classification ◽

Phylogenetic Studies ◽

Family Level

The order Cypriniformes is the most diverse order of freshwater fishes. Recent phylogenetic studies have approached a consensus on the phylogenetic relationships of Cypriniformes and proposed a new phylogenetic classification of family-level groupings in Cypriniformes. The lack of a reference for the placement of genera amongst families has hampered the adoption of this phylogenetic classification more widely. We herein provide an updated compilation of the membership of genera to suprageneric taxa based on the latest phylogenetic classifications. We propose a new taxon: subfamily Esominae within Danionidae, for the genus Esomus.

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Phylogenetic relationships among accessions in Citrus and related genera based on the insertion polymorphism of the CIRE1 retrotransposon

Open Agriculture ◽

10.1515/opag-2020-0026 ◽

2020 ◽

Vol 5 (1) ◽

pp. 243-251

Author(s):

Akira Horibata ◽

Tsuneo Kato

Keyword(s):

Phylogenetic Relationships ◽

Sweet Orange ◽

Point Of View ◽

Insertion Polymorphism ◽

Navel Orange ◽

Citrus Germplasm ◽

Outgroup Species ◽

Blood Orange

AbstractA total of 145 accessions of the genus Citrus and related genera, maintained in the Conservation Garden for Citrus Germplasm at the Experimental Farm of Kindai University, Yuasa, Wakayama, Japan, were examined for their phylogenetic relationships. The present classification was conducted using an inter-retrotransposon amplified polymorphism (IRAP) method based on the insertion polymorphism of a retrotransposon, CIRE1, identified in C. sinensis. The objective of this study was to evaluate the applicability of the IRAP method for citrus classification. The constructed dendrogram showed that the 145 accessions and two outgroup species were successfully classified into five major clades. A large number of C. sinensis accessions were divided into three traditional groups, navel orange, sweet orange, and blood orange, almost corresponding to the sub-clades in the dendrogram. Several other accessions belonging to the same species, and also many hybrid cultivars from crossbreeding, were localized into the respective sub-clades or near positions in the dendrogram. Several unclassified accessions could also be located in the dendrogram, suggesting novel relationships with other accessions. It was concluded that the IRAP method based on CIRE1 insertion polymorphism was suitable for the classification of citrus from a molecular point of view.

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