Phenology-based classification of invasive annual grasses to the species level

2021 ◽  
Vol 263 ◽  
pp. 112568
Author(s):  
Peter J. Weisberg ◽  
Thomas E. Dilts ◽  
Jonathan A. Greenberg ◽  
Kerri N. Johnson ◽  
Henry Pai ◽  
...  
Keyword(s):  
Species Level ◽  
Annual Grasses

scholarly journals On the fossil Remains of Panochthus Burmeister, 1866 (Xenarthra, Cingulata, Glyptodontidae) from the Pleistocene of southern Brazil

2015 ◽  
Vol 87 (1) ◽  
pp. 15-27 ◽  
Author(s):  
José D. Ferreira ◽  
Martín Zamorano ◽  
Ana Maria Ribeiro
Keyword(s):  
South America ◽  
Rio Grande ◽  
Species Level ◽  
External Morphology ◽  
Latitudinal Distribution ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Diagnostic Features ◽  
New Material

The genus Panochthus represents the last lineage of "Panochthini" recorded in the Pleistocene. This genus has a wide latitudinal distribution in South America, and in Brazil it occurs in the southern and northeastern regions. In this paper we describe new material (isolated osteoderms and caudal tube fragments) assigned to Panochthus from the state of Rio Grande do Sul (southern Brazil) and discuss some taxonomic issues related to Panochthus tuberculatus and Panochthus greslebini based on this material . The occurrence of P. greslebini is the first for outside the Brazilian Intertropical Region. In addition, we describe new diagnostic features to differentiate the osteoderms of P. greslebini and P. tuberculatus. Unfortunately, it was not possible to identify some osteoderms at the species level. Interestingly, they showed four distinct morphotypes characterized by their external morphology, and thus were attributed to Panochthus sp. Lastly, we conclude that in addition to P.tuberculatus registered to southern Brazil, there is another species of the genus, assignable to P. cf. P. greslebini. Our analysis reinforce the reliability of caudal tube characters for the classification of species of Panochthus.

Taxonomic status of Andersen’s fruit-eating bat (Artibeus jamaicensis aequatorialis) and revised classification of Artibeus (Chiroptera: Phyllostomidae)

Zootaxa ◽  
2010 ◽  
Vol 2648 (1) ◽  
pp. 45 ◽  
Author(s):  
PETER A. LARSEN ◽  
MARÍA R. MARCHÁN-RIVADENEIRA ◽  
ROBERT J. BAKER
Keyword(s):  
Taxonomic Status ◽  
Morphological Characters ◽  
Species Level ◽  
South American ◽  
Reciprocal Monophyly ◽  
Dna Variation ◽  
The Andes ◽  
Artibeus Jamaicensis ◽  
Phylogenetic Studies

Fruit-eating bats of the genus Artibeus are widely distributed across the Neotropics and are one of the most recently evolved assemblages of the family Phyllostomidae. Although the taxonomy and systematics of species of Artibeus has been the subject of an intense historical debate, the most current taxonomic arrangements recognize approximately eleven species within the genus. However, recent phylogenetic studies indicate that species diversity within South and Middle American populations of Artibeus is underestimated. South American populations referable to A. jamaicensis aequatorialis are of considerable interest because previous studies of mitochondrial DNA variation identified potential species level variation west of the Andes Mountains. In this study we use morphometric and genetic data (nuclear AFLPs) to investigate the taxonomic status of A. j. aequatorialis. Our results indicate that elevating aequatorialis to species level is appropriate based on statistically supported reciprocal monophyly in mitochondrial and nuclear datasets and diagnostic morphological characters. In light of our results, and of those presented elsewhere, we provide a revised classification of the genus.

Classification of Leptospira genomospecies 1, 3, 4 and 5 as Leptospira alstonii sp. nov., Leptospira vanthielii sp. nov., Leptospira terpstrae sp. nov. and Leptospira yanagawae sp. nov., respectively

2013 ◽  
Vol 63 (Pt_5) ◽  
pp. 1859-1862 ◽  
Author(s):  
L. Smythe ◽  
B. Adler ◽  
R. A. Hartskeerl ◽  
R. L. Galloway ◽  
C. Y. Turenne ◽  
...  
Keyword(s):  
The Netherlands ◽  
Original Description ◽  
Sao Paulo ◽  
Species Level ◽  
Valid Species ◽  
Culture Collections ◽  
Content Type ◽  
Link Type ◽  
Type Strains

The genus Leptospira currently comprises 16 named species. In addition, four unnamed hybridization groups were designated Leptospira genomospecies 1, 3, 4 and 5. These groups represent valid species-level taxa, but were not assigned names in the original description by Brenner et al. [Int J Syst Bacteriol 49, 839–858 (1999)]. To rectify this situation, it is proposed that Leptospira genomospecies 1, genomospecies 3, genomospecies 4 and genomospecies 5 should be classified as Leptospira alstonii sp. nov., Leptospira vanthielii sp. nov., Leptospira terpstrae sp. nov. and Leptospira yanagawae sp. nov., respectively, with strains L. alstonii 79601T ( = ATCC BAA-2439T), L. vanthielii WaZ HollandT ( = ATCC 700522T), L. terpstrae LT 11-33T ( = ATCC 700639T) and L. yanagawae Sao PauloT ( = ATCC 700523T) as the type strains. The type strains are also available from the culture collections of the WHO Collaborating Centres in Amsterdam, The Netherlands, and Brisbane, Australia.

On the systematic position of the genus Eriocottis Zeller, 1847, with remarks on the phylogeny of primitive Tineoidea (Lepidoptera)

1978 ◽  
Vol 9 (4) ◽  
pp. 279-296 ◽  
Author(s):  
E. Schmidt Nielsen
Keyword(s):  
Family Relationship ◽  
Systematic Position ◽  
Species Level ◽  
Monophyletic Group ◽  
Female Genitalia ◽  
New Synonym

AbstractEriocottis, the type-genus of Eriocottinae Spuler, 1898, hitherto placed in Incurvarioidea, is redescribed and shown to possess ditryse female genitalia, and is allocated to Tineoidea. Based on two synapomorphies, the Eriocottinae, Deuterotinea Spuler, 1901 (Deuterotineidae), and Compsoctena Zeller, 1852 (Compsoctenidae), are demonstrated to constitute a monophyletic group and are given family rank, Eriocottidae. As this family shares one probable synapomorphy with the Psychidae, a sister-family relationship is suggested. The Eriocottidae are believed to represent one of the earliest evolutionary lines in Tineoidea. A classification of taxa above species level is presented; this divides the Eriocottidae into two subfamilies: Eriocottinae and Compsocteninae. Cronodoxa Meyrick, 1922, is a new synonym of Deuterotinea Spuler, 1901. The Atychidae are assigned to Sesioidea.

scholarly journals Studies on diversity of soil microfungi in the Hornsund area, Spitsbergen

2013 ◽  
Vol 34 (1) ◽  
pp. 39-54 ◽  
Author(s):  
Siti Hafizah Hafizah ◽  
Siti Aisyah Alias ◽  
Hii Yii Siang ◽  
Jerzy Smykla ◽  
Ka−Lai Pang ◽  
...  
Keyword(s):  
Sequence Data ◽  
Intergenic Spacer ◽  
High Arctic ◽  
Soil Samples ◽  
Potato Dextrose Agar ◽  
Species Level ◽  
Thermal Growth ◽  
Geomyces Pannorum ◽  
Soil Microfungi

Abstract We assessed culturable soil microfungal diversity in various habitats around Hornsund, Spitsbergen in the High Arctic, using potato dextrose agar (PDA) medium. Thermal growth classification of the fungi obtained was determined by incubating them in 4°C and 25°C, permitting separation of those with psychrophilic, psychrotolerant and mesophilic char− acteristics. In total, 68 fungal isolates were obtained from 12 soil samples, and grouped into 38 mycelial morphotypes. Intergenic spacer regions of these morphotypes were sequenced, and they represented 25 distinct taxonomic units, of which 21 showed sufficient similarity with available sequence data in NCBI to be identified to species level. Soil under ornithogenic influence showed the highest species diversity, including sequences assigned to Mortierella macrocystis, M. elongata, Mortierella sp., Cudoniella sp., Varicosporium elodeae, Beauveria bassiana, Geomyces pannorum, Penicillium sp. and Atradidymella muscivora. Fourteen taxa were classified as psychrophilic, seven mesophilic, and four psychrotolerant.

scholarly journals A comparative study of metagenomics analysis pipelines at the species level

2016 ◽  
Author(s):  
Yee Voan Teo ◽  
Nicola Neretti
Keyword(s):  
Comparative Study ◽  
Species Level ◽  
Marker Genes ◽  
Closely Related Species ◽  
Full Reference ◽  
Quantification Accuracy ◽  
Reference Genomes ◽  
Metagenomics Analysis ◽  
Higher Sensitivity

AbstractMany metagenomics classification tools have been developed with the rapid growth of the metagenomics field. However, the classification of closely related species remains a challenge for this field. Here, we compared MetaPhlAn2, kallisto and Kraken for their performances in two metagenomics settings, human metagenomics and environmental metagenomics. Our comparative study showed that kallisto demonstrated higher sensitivity than MetaPhlAn2 and Kraken and better quantification accuracy than Kraken at the species level. We also showed that classification tools that run on full reference genomes misidentified many species that were not truly present. In order to reduce false positives, we introduced marker genes from MetaPhlAn2 into our pipeline, which uses kallisto for the classification step, as an additional filtering step for species detection.

Revision of the long-proboscid scorpionflies, Lichnomesopsyche Ren, Labandeira, and Shih, 2010

2021 ◽  
pp. 1-7
Author(s):  
Xinneng Lian ◽  
Chenyang Cai ◽  
Diying Huang
Keyword(s):  
Male Genitalia ◽  
Inner Mongolia ◽  
Upper Jurassic ◽  
Northeastern China ◽  
Species Level ◽  
Wing Venation ◽  
Maxillary Palps ◽  
Male Genital

Abstract The Mesozoic mecopteran family Mesopsychidae has attracted extensive attention by their long proboscis that is presumably associated with pollination of early gymnosperms. Three previously reported species of Lichnomesopsyche Ren, Labandeira, and Shih, 2010 from the Middle−Upper Jurassic Haifanggou Formation at Daohugou (Inner Mongolia, northeastern China) display distinct resemblances in wing venation, so that their classification, based on currently described characters, remains elusive. Herein, we describe and figure exquisitely preserved male genital structures of L. gloriae Ren, Labandeira, and Shih, 2010, L. daohugouensis Ren, Labandeira, and Shih, 2010, and L. prochorista Lin et al., 2016, which can be used for defining and recognizing the three species. Our discovery indicates that the male genitalia are the major critical structures for species-level classification of the peculiar genus Lichnomesopsyche. Details of the maxillary palps and legs of L. gloriae and L. daohugouensis are also described.

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