A qualitative assessment of intra- and interspecific variability in spermathecal form in the Curtonotum cuthbertsoni complex (Diptera: Ephydroidea: Curtonotidae) and an assessment of their value as species-level characters

There are 29 species or subspecies in genus Hexacentrus occurring in Asia, Africa and Australia. Because of its similar appearance, it is not easy to distinguish them by traditional methods. In this study, we collected samples and sequenced COI genes from wide range. By reconstructing the gene tree, we found one new species, H. formosanus Chen et He sp. nov., from Taiwan. The new species is similar to H. expansus or H. inflatissimus, but differs from the former in male Cu2 vein of left tegmina curved and slender, and spectrum of male left tegmina slender and subsquare; differs from the later by body size smaller and female tegmina narrow and short. The type specimens are deposited in National Museum of Natural Science, Taichung, Taiwan (NMNS). H. japonicus hareyamai is treated as species level, H. hareyamai stat. nov.

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A karyological study of the genus Pnigalio Schrank (Hymenoptera: Eulophidae): Assessing the taxonomic utility of chromosomes at the species level

Bulletin of Entomological Research ◽

10.1017/s0007485311000356 ◽

2011 ◽

Vol 102 (1) ◽

pp. 43-50 ◽

Cited By ~ 8

Author(s):

M. Gebiola ◽

M. Giorgini ◽

P. Navone ◽

U. Bernardo

Keyword(s):

Relative Length ◽

Distinct Species ◽

Species Level ◽

Similar Species ◽

Karyological Study ◽

Centromeric Index ◽

Interspecific Variability ◽

Reciprocal Differences ◽

Karyotype Structure

AbstractWe provide a karyological study of 12 species of the genus Pnigalio in an attempt to evaluate the taxonomic utility of karyotypes at the species level. For all species of Pnigalio examined the number of chromosome was 2n=12. Karyotype formulae presented mainly metacentric and submetacentric chromosomes, although a pair of acrocentrics or subtelocentrics, shorter than biarmed chromosomes, was present in some species. The analysis of karyotypes of Pnigalio showed frequent but not general interspecific variability of the chromosome traits. Although most of the studied species revealed concordance between morphological and karyological characters (centromeric index and relative length), two other categories have been identified: morphologically distinct species without reciprocal differences in karyotype structure, and morphologically similar species that strongly differ in chromosomal characters.

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Achene micromorphology and its taxonomic significance in some species in Taraxacum sect. Palustria (Asteraceae)

PhytoKeys ◽

10.3897/phytokeys.166.54271 ◽

2020 ◽

Vol 166 ◽

pp. 1-28

Author(s):

Agnieszka Rewicz ◽

Jolanta Marciniuk ◽

Paweł Marciniuk

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Diagnostic Value ◽

Species Level ◽

Taxonomic Significance ◽

Rational Use ◽

Number Of Species ◽

Dichotomous Key ◽

As Species ◽

Scanning Electron

The genus Taraxacum is one of the largest and taxonomically most complicated apomictic genera. Currently, it is considered to consist of over 2800 species placed within 60 sections. Due to the large number of species, and their uniform morphological design and plasticity of leaves, the identification of plants at the species level is challenging even for specialists. This problem significantly hinders the study of their properties and the rational use of these valuable medicinal and nutritional plants. This paper presents the results of research on the morphology and micromorphology of achenes of 28 Taraxacum species of sect. Palustria and for comparison one species per section of: Erythrosperma, Naevosa, Piesis, and Taraxacum. The achenes were measured with a stereoscopic microscope and a biometric program, and micromorphological studies were performed by scanning electron microscopy. It has been shown that traits associated with achene morphology and micromorphology have a high diagnostic value, allowing us to distinguish sections as well as species within the sect. Palustria. Based on the examined achene features, a dichotomous key for determining the studied species was constructed.

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Contribution to chromosome numbers and phylogeny of Turkish Vincetoxicum Wolf (Apocynaceae, Asclepiadoideae)

European Journal of Taxonomy ◽

10.5852/ejt.2019.590 ◽

2019 ◽

Author(s):

Seher Güven ◽

Serdar Makbul ◽

Kamil Coşkunçelebì

Keyword(s):

Chromosome Numbers ◽

Phylogenetic Analyses ◽

Molecular Data ◽

Sensu Stricto ◽

Species Level ◽

Nrdna Its ◽

Chromosome Counts ◽

As Species ◽

Molecular Phylogenetic

We report chromosome counts for ten taxa of Vincetoxicum sensu stricto (s. str.) (Apocynaceae) from Turkey (of which two are endemic), including the first chromosome counts for V. canescens subsp. pedunculata, V. funebre, V. fuscatum subsp. boissieri, V. parviflorum and V. tmoleum. Two taxa of V. fuscatum proved to be tetraploid (2n=44) and the remaining eight taxa diploid (2n=22). Molecular phylogenetic analyses based on nrDNA (ITS) and cpDNA (trnT-trnL) (including 31 newly generated sequences) confirm the position of the Turkish Vincetoxicum in the Vincetoxicum s. str. clade. Vincetoxicum fuscatum, V. parviflorum, V. speciosum, as well as the Turkish endemic V. fuscatum subsp. boissieri, were clearly resolved as species-level clades, whereas the delimitation of the rest of the Turkish taxa was less clear based on molecular data.

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Reliability of Taxonomic Sufficiency for Simplifying Benthic Index M-AMBI Methodology in A Heavily Polluted Estuary

10.21203/rs.3.rs-109416/v1 ◽

2020 ◽

Author(s):

Hongjun Li ◽

Yi Sun ◽

Yanbin Gu ◽

Pengfei Xie ◽

Yuan Liu ◽

...

Keyword(s):

Species Level ◽

Biotic Index ◽

Ecological Quality ◽

Taxonomic Sufficiency ◽

As Species ◽

Level Data ◽

Ecological Quality Status ◽

Family Level ◽

Benthic Index ◽

The Relationship

Abstract In order to assess the ecological quality status of coastal environments in Europe, the AZTI’s Marine Biotic Index (AMBI) and multivariate-AMBI (M-AMBI) have been developed. However, the applicability and validity of these methods worldwide remains in question, particularly for complex ecosystems such as estuaries. The present study, therefore, is an investigation of the relationship between the M-AMBI and different contamination variables in a eutrophic estuary in three seasons (i.e., spring, summer and autumn). In addition, the reliability of taxonomic sufficiency for simplifying M-AMBI operation was tested. The results showed that genus- and family-level data accurately reproduced the spatial-temporal patterns of species-level community assemblages. The M-AMBI values showed a consistent spatial distribution pattern in all sampling seasons, with a decreasing trend along the increasing distance from the estuary inlet. Furthermore, both genus- and family-level results performed nearly as well as species-level data in detecting the seasonal variations of different contaminants (i.e., nutrients and organic enrichment). The taxonomic sufficiency succeeded in this temperate ecoregion is owing to the high aggregation ratios at different taxonomic levels in all sampling events. In general, these findings suggested that application of taxonomic sufficiency based on the M-AMBI provides a simple and efficient method for evaluating variations of ecological quality in the Liaohe Estuary.

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A new species of Mada Gordon from the Andes (Coleoptera: Coccinellidae: Epilachnini)

Zootaxa ◽

10.11646/zootaxa.4226.3.7 ◽

2017 ◽

Vol 4226 (3) ◽

pp. 442

Author(s):

KAROL SZAWARYN ◽

GUILLERMO GONZÁLEZ

Keyword(s):

New Species ◽

New World ◽

Species Level ◽

The Andes ◽

As Species ◽

A New Species

Although Gordon (1975) revised the herbivorous ladybirds of the New World, the taxonomy of this group in the Americas is still poorly studied. Some recent efforts have been made at the generic (Szawaryn 2015b) as well as species level (Szawaryn 2015a; González & Gómez 2013; González 2015) to describe and improve our knowledge of the systematics of Neotropical Epilachnini, but they still need more investigation.

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Testing the reliability of standard and complementary DNA barcodes for the monocot subfamily Alooideae from South Africa

Genome ◽

10.1139/gen-2015-0183 ◽

2017 ◽

Vol 60 (4) ◽

pp. 337-347 ◽

Cited By ~ 2

Author(s):

Barnabas H. Daru ◽

Michelle van der Bank ◽

Abubakar Bello ◽

Kowiyou Yessoufou

Keyword(s):

Dna Barcode ◽

Poor Performance ◽

Species Level ◽

Discriminatory Power ◽

Species Boundaries ◽

Species Discrimination ◽

Data Set ◽

As Species ◽

History Of ◽

Combined Data

Although a standard DNA barcode has been identified for plants, it does not always provide species-level specimen identifications for investigating important ecological questions. In this study, we assessed the species-level discriminatory power of standard (rbcLa + matK) and complementary barcodes (ITS1 and trnH-psbA) within the subfamily Alooideae (Asphodelaceae), a large and recent plant radiation, whose species are important in horticulture yet are threatened. Alooideae has its centre of endemism in southern Africa, with some outlier species occurring elsewhere in Africa and Madagascar. We sampled 360 specimens representing 235 species within all 11 genera of the subfamily. With three distance-based methods, all markers performed poorly for our combined data set, with the highest proportion of correct species-level specimen identifications (30%) found for ITS1. However, when performance was assessed across genera, the discriminatory power varied from 0% for all single markers and combinations in Gasteria to 63% in Haworthiopsis, again for ITS1, suggesting that DNA barcoding success may be related to the evolutionary history of the lineage considered. Although ITS1 could be a good barcode for Haworthiopsis, the generally poor performance of all markers suggests that Alooideae remains a challenge. As species boundaries within Alooideae remain controversial, we call for continued search for suitable markers or the use of genomics approaches to further explore species discrimination in the group.

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SINOPSIS Begonia LIAR DI SUMATERA BARAT

BERITA BIOLOGI ◽

10.14203/beritabiologi.v16i3.2798 ◽

2018 ◽

Vol 16 (3) ◽

Author(s):

Deden Girmansyah

Keyword(s):

Natural Disaster ◽

Human Activity ◽

Species Level ◽

Herbarium Specimens ◽

As Species ◽

West Sumatra ◽

Field Works

The diversity of wild Begonia in West Sumatra is not well understood, while the habitat of Begonia has continuedly decreased by human activity or natural disaster. Therefore, some species are seriously undert hreat. Examinations of Begonia spp. were carried out using herbarium specimens from Andalas University Herbarium (ANDA), Herbarium Bogoriense (BO) and some field works in West Sumatra were conducted. A total of 33 species of Begonia were collected and identified as species level and could be used for identied Begonia species from West Sumatra.

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An annotated catalogue of the epigeic and cave centipedes (Chilopoda) of Sardinia

Zootaxa ◽

10.11646/zootaxa.2318.1.6 ◽

2009 ◽

Vol 2318 (1) ◽

pp. 56-168 ◽

Cited By ~ 7

Author(s):

MARZIO ZAPPAROLI

Keyword(s):

Geographic Distribution ◽

Species Level ◽

Valid Species ◽

Nomen Nudum ◽

Species Status ◽

As Species ◽

Species Inquirenda ◽

Unidentified Species ◽

Annotated Catalogue

Published and unpublished data on the epigeic and cave centipedes of Sardinia (Italy) are summarized and critically revised in this paper. Fifty-four species are listed and discussed (1 Scutigeromorpha, 19 Lithobiomorpha, 6 Scolopendromorpha, 28 Geophilomorpha), two of which new to the island: Lamyctes emarginatus (Newport, 1844) and Schendyla montana (Attems, 1895). Thirty-one species have been recorded in caves (1 Scutigeromorpha, 14 Lithobiomorpha, 6 Scolopendromorpha, 10 Geophilomorpha) – including the poorly known Plutonium zwierleini Cavanna, 1881 – six of which exclusive of this habitat (5 Lithobius spp., 1 Cryptops sp.). Five species are introduced or probably introduced. General geographic distribution, chorotype, Sardinian localities and ecological notes (altitudinal ranges, habitats) are given for each species. Taxonomic notes are given for some species. Lithobius turritanus Fanzago, 1881 and Lithobius molophai Restivo De Miranda, 1978, previously considered synonyms of Lithobius tricuspis Meinert, 1872 and Lithobius cerii Verhoeff, 1943, respectively, are recognized as valid species, status rev. The new synonymies Lithobius melanops domusnovae Restivo De Miranda, 1976 = Lithobius lapidicola Meinert, 1872 syn. nov., Lithobius oligoporus Latzel, 1884 = Lithobius turritanus Fanzago, 1881 syn. nov. and Lithobius fraleliae De Miranda Restivo, 1978 = Lithobius turritanus Fanzago, 1881 syn. nov. are proposed. Lithobius turritanei Restivo De Miranda i. l. in Cassola, 1982 is recognized as nomen nudum. Cryptops breviunguis A. Costa, 1882 is proposed as species inquirenda and its identity with Cryptops anomalans Newport, 1844 is rejected. Lithobius molophai Restivo De Miranda, 1978 and L. sardous Silvestri, 1898 are redescribed on type or topotypical material. A lectotype for L. sardous Silvestri, 1898 is also designated. Lithobius sardus Manfredi, 1956 status nov., formerly a subspecies of L. agilis C. L. Koch, 1847, is raised to species level; its probable affinity with L. turritanus Fanzago, 1881 is also discussed. Lithobius infossusSilvestri, 1894 (= L. dahlii Verhoeff, 1925) is erased from the centipede fauna of Sardinia, and previous records should be referred to an unidentified species of Lithobius or to L. nuragicus Zapparoli, 1997.

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