scholarly journals Invasion of Eragrostis albensis in Central Europe: distribution patterns, taxonomy and phylogenetic insight into the Eragrostis pilosa complex

2021 ◽  
Author(s):  
Anna Wróbel ◽  
Ewelina Klichowska ◽  
Evgenii Baiakhmetov ◽  
Arkadiusz Nowak ◽  
Marcin Nobis
Keyword(s):  
Central Europe ◽  
Distribution Patterns ◽  
Morphological Characters ◽  
Inter Simple Sequence Repeat ◽  
Internal Transcribed Spacers ◽  
Nuclear Ribosomal Dna ◽  
New Taxon ◽  
Distribution Maps ◽  
The Status ◽  
European Part Of Russia

AbstractThe Eragrostis pilosa complex (Poaceae) comprises five widely distributed and regionally invasive species—E. albensis, E. amurensis, E. imberbis, E. multicaulis, and E. pilosa, distinguished by tiny and variable morphological characters and with so far unknown phylogenetic relationships. Recently, some doubts have been raised about the status of an invasive glandular morphotype occurring in Central Europe assigned either to E. amurensis or to E. albensis. Here, we addressed this issue by analysing morphology, internal transcribed spacers of nuclear ribosomal DNA, and five inter-simple sequence repeat markers. The genetic evidence supported closer relationship of this glandular morphotype to eglandular E. albensis, widely established in Central Europe, than to glandular E. amurensis described from Asia. We propose to adopt a new taxonomic treatment that E. albensis includes both eglandular and glandular individuals, and to classify the glandular ones as E. albensis var. scholziana M. Nobis & A. Wróbel var. nova. Currently this new taxon is known from a dozen of localities in Central Europe and is invasive in the lower section of the Oder River valley, whereas Eragrostis albensis var. albensis has already spread widely across Europe in riparian phytocenoses and anthropogenic habitats. Since probably the first registered records in 1940s, it has been observed in European part of Russia, Belarus, Ukraine, Poland, Slovakia, Czech Republic, Germany, Austria, the Netherlands, and its further invasion is likely to proceed. We provided distribution maps concerning spread dynamics of E. albensis in Europe from 1947 to 2020. In total, the species has been observed on over 1300 localities so far, most of which were found after 2000.

scholarly journals Fusarium incarnatum-equiseti complex from China

2019 ◽  
Vol 43 (1) ◽  
pp. 70-89 ◽  
Author(s):  
M.M. Wang ◽  
Q. Chen ◽  
Y.Z. Diao ◽  
W.J. Duan ◽  
L. Cai
Keyword(s):  
Rna Polymerase ◽  
Elongation Factor ◽  
Distribution Patterns ◽  
Morphological Characters ◽  
Ribosomal Gene ◽  
Internal Transcribed Spacers ◽  
Translation Elongation ◽  
Cultural Methods ◽  
Wide Range

The Fusarium incarnatum-equiseti species complex (FIESC) is shown to encompass 33 phylogenetic species, across a wide range of habitats/hosts around the world. Here, 77 pathogenic and endophytic FIESC strains collected from China were studied to investigate the phylogenetic relationships within FIESC, based on a polyphasic approach combining morphological characters, multi-locus phylogeny and distribution patterns. The importance of standardised cultural methods to the identification and classification of taxa in the FIESC is highlighted. Morphological features of macroconidia, including the shape, size and septum number, were considered as diagnostic characters within the FIESC. A multi-locus dataset encompassing the 5.8S nuclear ribosomal gene with the two flanking internal transcribed spacers (ITS), translation elongation factor (EF-1α), calmodulin (CAM), partial RNA polymerase largest subunit (RPB1) and partial RNA polymerase second largest subunit (RPB2), was generated to distinguish species within the FIESC. Nine novel species were identified and described. The RPB2 locus is demonstrated to be a primary barcode with high success rate in amplification, and to have the best species delimitation compared to the other four tested loci.

A new Crocus L. (Iridaceae) species from SE Turkey, based on morphological and molecular data

Phytotaxa ◽  
2015 ◽  
Vol 239 (3) ◽  
pp. 223 ◽  
Author(s):  
Osman Erol ◽  
Doerte Harpke ◽  
Hasan Yıldırım
Keyword(s):  
Phylogenetic Analyses ◽  
Type Specimen ◽  
Morphological Characters ◽  
Molecular Data ◽  
Nuclear Ribosomal Dna ◽  
Phylogenetic Position ◽  
Full Description ◽  
New Taxon ◽  
Internal Transcribed Spacer Region ◽  
Se Turkey

Crocus musagecitii is described as a new species. Diagnostic morphological characters, a full description and detailed illustrations are provided on the basis of the type specimen and wild specimens. Morphologically, C. musagecitii is close to Crocus biflorus subsp. pseudonubigena. Crocus musagecitii differs from C. biflorus subsp. pseudonubigena by the lack of stripes or narrow purplish tongue on outside of outer tepals, wider tepals, and homogenously yellow anthers. In order to clarify the phylogenetic position of this species within the Crocus adamii species complex, we sequenced the internal transcribed spacer region (ITS: ITS1 + 5.8SrDNA + ITS2) and 5’ external transcribed spacer (ETS) of the nuclear ribosomal DNA (rDNA). A phylogenetic tree obtained by Bayesian phylogenetic inference is given. Phylogenetic analyses revealed that the new taxon is close to C. munzurensis. Crocus musagecitii differs from its phylogenetically closest relative C. munzurensis by the corm tunics (C. musagecitii: coriaceus; C. munzurensis: membranous), the number of leaves (C. musagecitii: up to 8; C. munzurensis: up to 4) and non-hairy leaf margins.

Molecular systematics of subtribe Banksiinae (Banksia and Dryandra; Proteaceae) Based on cpDNA and nrDNA sequence data: Implications for taxonomy and biogeography

1998 ◽  
Vol 11 (4) ◽  
pp. 321 ◽  
Author(s):  
Austin R. Mast
Keyword(s):  
Sequence Data ◽  
Phylogenetic Reconstruction ◽  
Morphological Characters ◽  
Internal Transcribed Spacers ◽  
Nuclear Ribosomal Dna ◽  
Base Substitution ◽  
Trnl Intron ◽  
Single Root ◽  
Cladistic Analyses ◽  
Molecular Characters

Despite considerable research interest in the subtribe Banksiinae (Banksia L.f. and Dryandra R.Br.), no strongly supported phylogenetic hypothesis for the relationship between the genera exists, nor have molecular characters been sampled for phylogenetic reconstruction at any level. In this study, DNA sequence characters were sampled from chloroplast DNA (cpDNA; the trnL intron, the trnL 3′ exon, and the spacer between the trnL 3′ exon and trnF) and nuclear ribosomal DNA (nrDNA; both internal transcribed spacers) of 18 species of Banksia and five of Dryandra, with six outgroup taxa from the subfamily Grevilleoideae. The molecular characters provided the opportunity to code taxa outside of Banksia for cladistic comparison with the genus—an opportunity not previously provided by morphological characters. Cladistic analyses, using parsimony, explored the effects of various weightings of transition to transversion events and base substitution to insertion and deletion events to determine which relationships in the cladograms were robust. The trnL/trnF and ITS characters strongly supported a paraphyletic Banksia with respect to a monophyletic Dryandra. The molecular results supported a single root for Thiele and Ladiges’(1996) unrooted morphological cladogram along the branch between the Isotylis to B. fuscolutea clade and the Grandes to B. tricuspis clade. George’s (1981) subgenus Banksia and section Banksia appeared dramatically non-monophyletic. The distribution of eastern taxa at derived positions on the molecular cladograms suggested considerable cladogenesis in the the genus prior to the formation of the Nullarbor Plain during the Tertiary.

A new species from the temporary ponds of southwest Portugal: Helosciadium milfontinum

Phytotaxa ◽  
2020 ◽  
Vol 456 (1) ◽  
pp. 49-62
Author(s):  
EDUARDO CIRES ◽  
CARLA PINTO-CRUZ ◽  
HERMINIO S. NAVA ◽  
JOSÉ ANTONIO FERNÁNDEZ PRIETO
Keyword(s):  
New Species ◽  
Molecular Analysis ◽  
Conservation Status ◽  
Morphological Characters ◽  
Internal Transcribed Spacers ◽  
Temporary Ponds ◽  
New Taxon ◽  
Taxonomic Relationships ◽  
Threatened Plant ◽  
A New Species

The genus Helosciadium has six species of which three have been identified in Portugal: H. nodiflorum, frequent and abundant in much of the territory, and H. inundatum and H. repens, with a scattered distribution in Portugal. In the present study, a new species, Helosciadium milfontinum, a seriously threatened plant endemic, rare and scarce that grows in the temporary ponds of the Vicentinan Coastal District is described and illustrated. Morphological characters and molecular analysis of nuclear internal transcribed spacers (ITS) and plastid regions (matK, rps16-trnK and trnL-F) confirm the existence of this new taxon. Conservation status and taxonomic relationships of the new species are examined.

The genus Echinolittorina Habe, 1956 (Gastropoda: Littorinidae) in the Indo-West Pacific Ocean

Zootaxa ◽  
2007 ◽  
Vol 1420 (1) ◽  
pp. 1-161 ◽  
Author(s):  
DAVID G. REID
Keyword(s):  
Mitochondrial Gene ◽  
Morphological Differentiation ◽  
Open Water ◽  
Distribution Patterns ◽  
Morphological Characters ◽  
Molecular Data ◽  
Shell Shape ◽  
Additional Species ◽  
West Pacific ◽  
Distribution Maps

The phylogeny of the genus Echinolittorina, and phylogeography of some of its members, have previously been examined using molecular data, so that species can now be defined by a combination of phylogenetic, morphological and geographical criteria. The 26 species recognized in the Indo-West Pacific biogeographical region form a monophyletic group, here defined as the subgenus Granulilittorina Habe & Kosuge, 1966. Morphological descriptions are provided for these 26 species, including details of shell, pigmentation of headfoot, reproductive anatomy, spermatozoa, egg capsules and radulae. Diagnoses include reference to mitochondrial gene sequences (COI). A key is based on shells, tentacle pigmentation, penial shape and geographical distribution. Seven new species are described: E. marisrubri, E. omanensis, E. austrotrochoides, E. marquesensis, E. wallaceana, E. tricincta, E. philippinensis. Three name changes are proposed: E. malaccana (Philippi, 1847) and E. cecillei (Philippi, 1851) are valid names for two members of the former ‘E. trochoides’ group; E. biangulata (von Martens, 1897) replaces ‘E. quadricincta’. Full synonymies are given for all taxa, and the taxonomic, evolutionary and ecological literature reviewed. Distribution maps are based on examination of 1701 samples and reliable literature records. The contrast between continental and oceanic distribution patterns is emphasized; one clade of five species and two additional species are shown to have an association with upwelling areas. All species are known (or predicted from protoconch size and oviduct anatomy) to have planktotrophic development, and rare extralimital records suggest a maximum open-water dispersal distance of 1000–2100 km. The most useful morphological characters for identification are the shell, penial shape and copulatory bursa in the pallial oviduct. Sister species can be morphologically similar, but are almost always entirely allopatric, so that distributional information is important for identification. Substantial intraspecific variation is present in the shell shape and sculpture of most species; where there is a pronounced geographical pattern this may have a genetic basis, but ecophenotypic effects are also implicated, e.g. by predictable associations in some species of strongly nodulose sculpture with limestone substrates and with dry habitats where growth rate may be slow. Morphological characters are superimposed on a molecular phylogeny to demonstrate the synapomorphies of clades. This is essentially a morphostatic radiation of largely allopatric species with little morphological differentiation; ecological divergence is limited to specialization to oceanic, continental or upwelling areas and to small differences in zonation level.

Allium schisticola, a new species with peculiar morphological characters and an unexpected phylogenetic position

Phytotaxa ◽  
2020 ◽  
Vol 450 (3) ◽  
pp. 246-256
Author(s):  
ALIREZA DOLATYARI ◽  
HAMID MOAZZENI ◽  
SAEIDE HOSSEINI ◽  
FRANK R. BLATTNER ◽  
REINHARD M. FRITSCH
Keyword(s):  
New Species ◽  
Flower Color ◽  
Morphological Characters ◽  
Nuclear Ribosomal Dna ◽  
Phylogenetic Position ◽  
Morphological Description ◽  
New Taxon ◽  
Meiotic Chromosomes ◽  
Relationship Of ◽  
A New Species

Allium schisticola is described from West Azarbaijan (Iran) as a new species. It is closely related to A. sabalense and A. sahandicum in having a similar flower color but differs by leaf, filament, and tepal characters. We investigated the phylogenetic relationship of the new species based on sequences of the chloroplast trnL-trnF and nuclear ribosomal DNA internal transcribed spacer (ITS) regions in A. subg. Melanocrommyum compared with 109 accessions of this subgenus. Our results confirm its placement in A. subg. Melanocrommyum. However, the ITS tree showed that the new species should belong to A. sect. Melanocrommyum despite the fact that it represents many morphological characters of A. sect. Acanthoprason. Most peculiar for the new species are obtuse tepals broadest near the tip (vs. very narrowly lanceolate up to triangular tepals in A. sect. Acanthoprason), with adaxially inconspicuous median vein (vs. conspicuous median vein in sect. Acanthoprason). The new species is diploid with a chromosome number of 2n = 2x = 16. Karyotype features and meiotic chromosomes behavior are presented for the new taxon. A detailed morphological description, illustrations, and a distribution map of the new species are given.

MOLECULAR PHYLOGENY AND CHARACTER EVOLUTION OF DIDYMOCARPUS (GESNERIACEAE) IN THAILAND

2006 ◽  
Vol 63 (2-3) ◽  
pp. 231-251 ◽  
Author(s):  
P. PALEE ◽  
J. DENDUANGBORIPANT ◽  
V. ANUSARNSUNTHORN ◽  
M. MÖLLER
Keyword(s):  
Molecular Phylogeny ◽  
Geographical Origin ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Internal Transcribed Spacers ◽  
The Other ◽  
Nuclear Ribosomal Dna ◽  
Wide Sense ◽  
Corolla Colour ◽  
Pigment Glands

Until recently the genus Didymocarpus Wall. (Gesneriaceae) was used in an unwarrantably wide sense and included more than 180 species. It has now been remodelled and restricted to around 70 species. Of these, 18 species and one variety are known to occur in Thailand. To clarify the relationships among Thai species of Didymocarpus we sequenced the internal transcribed spacers (ITS) of nuclear ribosomal DNA (nrDNA) from a sample of 23 taxa, including 15 from Thailand, four from China, three from Malaysia and one from Bhutan. Seventeen morphological characters were coded for all 23 taxa and optimized onto a retention index (RI) reweighted maximum parsimony (MP) tree. The phylogenetic analyses suggested that Didymocarpus taxa formed a strongly supported monophyletic clade, with several supported subclades. The combination of molecular phylogeny and optimization of morphological characters suggests the presence of three distinct groups: the first, corresponding to Didymocarpus sect. Elati Ridl., includes plants with tall stems, yellow or white flowers and one-celled conoid or two-celled headed pigment glands; the other two groups, which represent Didymocarpus sect. Didymocarpus, both contain plants with dwarfed stems and violet or purple flowers, but are distinguished by the presence of both four-celled conoid or onecelled globose glands in one, and the absence in the other. Optimization of geographical locality onto the phylogeny led us to propose the hypothesis that, based on this sample, the geographical origin of Didymocarpus is the Malay Peninsula, and the ancestral corolla colour is white/yellow. Subsequent dispersal northward through southern and northern Thailand to China and Bhutan was accompanied by the evolution of a purple/violet corolla colour.

scholarly journals GIS Mapping and Distribution of Indian Peafowl (Pavo cristatus) in India by Using Citizen Science Data

2021 ◽  
Vol 7 (2) ◽  
Author(s):  
Kumar Adesh ◽  
Sinha Ankit ◽  
Kanaujia Amita
Keyword(s):  
Citizen Science ◽  
Citizen Participation ◽  
Bird Species ◽  
Distribution Patterns ◽  
Habitat Modeling ◽  
Gis Mapping ◽  
Science Data ◽  
Distribution Maps ◽  
Pavo Cristatus ◽  
The Status

The Indian peacock or Blue peafowl (Pavo cristatus.), the largest of the pheasants commonly called Mor or Mayur, is a bird species recognized for its beauty. Pavo cristatus (Indian peafowl) has been justifiably declared as the National Bird of India in 1963. In India, it is given the ultimate protection by its inclusion in the Schedule I of Wildlife (Protection) Act, 1972. The main objective is to encourage citizen participation in generating baseline information using sight records and enable long-term monitoring of Indian peafowl in India. The present study deals with the status and distribution of Indian peafowl in India and the data used is taken from the citizen science database of eBird. The complete dataset of Indian peafowl from 2001-2017 was used to prepare the distribution maps in different years as well as to obtain information on the species' location, and the number of a social group in India. Some potential reported sites were verified during 2013–2017 by visiting the distinct locations. From 2001 to 2017 we found 71,632 records from 15,151 contributors across 26 states/union territories of India. Percentage of individuals observed was 38% (in 2017), 27% (in 2016) and 16% (in 2015) whereas 0% was recorded in 2002, 2006 and 2007. The citizen science data obtained thus has the potential for increasing our understanding of current peafowl distribution patterns, and for categorizing important sites for conservation/protections and to perform occupancy and habitat modeling of Indian peafowl species in India.

scholarly journals Potentilla × angarensis Popov (Rosaceae Juss.) – a new taxon for the Oka-Don Lowland

2021 ◽  
Vol 7 ◽  
pp. 211-218
Author(s):  
Alexey A. Kechaykin ◽  
Anna B. Bedenko ◽  
Vladimir A. Agafonov
Keyword(s):  
New Record ◽  
First Record ◽  
Morphological Characters ◽  
European Part ◽  
General Distribution ◽  
New Taxon ◽  
Closely Related Species ◽  
Voronezh Region ◽  
European Part Of Russia ◽  
The Republic

A new locality of the taxon from the genus Potentilla, endemic to the flora of Russia and Kazakhstan, was discovered in Eastern Europe. Previously, P. × angarensis was recorded for the European part of Russia based on collections from Moscow Region and the Republic of Udmurtia. The paper reports the first record of this hybrid for the Oka-Don Lowland, which was found in the northeast of the Voronezh Region. The main morphological characters of the hybridogenic taxon, which distinguish it from closely related species, are listed. The general distribution of P. × angarensis is specified. An image of the herbarium specimen of the new record is presented.

New Findings on Scrophularia sect. Mimulopsis (Scrophulariaceae) from Iran

2019 ◽  
Vol 27 (4) ◽  
pp. 238-247
Author(s):  
Massoud Ranjbar ◽  
Narges Rahchamani
Keyword(s):  
New Species ◽  
Pollen Morphology ◽  
Conservation Status ◽  
Morphological Characters ◽  
Northern Iran ◽  
Distribution Maps ◽  
New Findings ◽  
Tehran Province ◽  
Micromorphological Characters ◽  
A New Species

Scrophularia dianatnejadii Ranjbar & Rahchamani, a new species from Tehran Province in northern Iran, is described and illustrated. It is closely related to S. amplexicaulis Benth. and shares with it some diagnostic morphological characters such as habit, plant indument, phyllotaxy, and corolla shape and color. Both species are placed in Scrophularia L. sect. Mimulopsis Boiss. Macro- and micromorphological characters of the two are examined and compared. Pollen morphology of these species is investigated using SEM. Detailed descriptions, illustrations, distribution maps, and conservation status of both species are provided.

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