Effectiveness of DNA barcoding markers in the description of a new and unusual calyptrate species of Myrcianthes (Myrtaceae)

Phytotaxa ◽  
2016 ◽  
Vol 284 (3) ◽  
pp. 203
Author(s):  
CARLOS PARRA-O. ◽  
A. F. BOHÓRQUEZ-OSORIO
Keyword(s):  
New Species ◽  
Dna Barcoding ◽  
Morphological Characters ◽  
Unusual Combination ◽  
A New Species

A new species, Myrcianthes roncesvallensis is described and illustrated from Andean forests of Tolima, Colombia. Due to the unusual combination of morphological characters in this new species never been found previously in a Colombian Myrtaceae, such as having a closed calyx, dichasial inflorescence and an eugenioid embryo, three DNA barcoding markers (rbcL, matK and ITS) were used to confirm the genus in which this species should be described. Taxonomic affinities of the new species within the genus are discussed.

Stenocephus janseni sp. nov., a new species of stem-sawfly from Germany (Hymenoptera: Cephidae)

2021 ◽  
pp. 73-81
Author(s):  
Andrew Liston ◽  
Marko Prous
Keyword(s):  
New Species ◽  
Species Differences ◽  
Genetic Data ◽  
Morphological Characters ◽  
Eastern Germany ◽  
Female Holotype ◽  
Unusual Combination ◽  
A New Species

Stenocephus janseni sp. nov. (Hymenoptera: Cephidae) is described from Brandenburg, eastern Germany, known only from the female holotype. It possesses an unusual combination of “generic” morphological characters, which makes its placement in Stenocephus Shinohara, 1999 provisional. Compared to other Stenocephus species, differences in the morphology of the lancet are particularly striking. Genetic data for S. janseni sp. nov. place it unequivocally in the Hartigiini, but rather distantly from other genera of this tribe which have so far been sequenced. The three previously described Stenocephus species are recorded from the East Palaearctic. No genetic data are currently available for these. Pachycephus nigratus Dovnar-Zapolskij, 1931, comb. restit., is no longer treated as belonging to Phylloecus Newman, 1838, but as a member of the genus in which it was originally described.

scholarly journals Description of a new species of Loxosceles Heineken & Lowe (Araneae, Sicariidae) recluse spiders from Hidalgo, Mexico, under integrative taxonomy: morphological and DNA barcoding data (CO1 + ITS2)

2020 ◽  
Author(s):  
Claudia Isabel Navarro-Rodríguez ◽  
Alejandro Valdez-Mondragón
Keyword(s):  
New Species ◽  
Dna Barcoding ◽  
Species Delimitation ◽  
Sister Group ◽  
Morphological Characters ◽  
Integrative Taxonomy ◽  
Taxonomic Approach ◽  
Morphological Differences ◽  
Unique Species ◽  
A New Species

Based on an integrative taxonomic approach, a new species of the genus Loxosceles Heineken & Lowe, 1832, is described from the state of Hidalgo, Mexico. Loxosceles tolantongo sp. nov. is described based on DNA barcoding using cytochrome c oxidase subunit 1 (CO1) and internal transcribed spacer 2 (ITS2), and morphology. For species delimitation, four molecular methods were implemented: 1) corrected p-distances under neighbor joining (NJ); 2) automatic barcode gap discovery (ABGD); 3) general mixed yule coalescent model (GMYC) and 4) Bayesian Poisson tree processes (bPTP). The new species morphologically resembles L. jaca, another species from Hidalgo, but there are morphological differences mainly in the tibiae of the male palp, the seminal receptacles of the females and also the high genetic p-distances. CO1 was more informative than ITS2 for the genetic separation; however, both concatenated genes (CO1 + ITS2) present robust evidence for species delimitation. Loxosceles tolantongo sp. nov. is considered a unique species for four reasons: 1) it can be diagnosed and distinguished by morphological characters (of the male palps mainly, but also of the seminal receptacles of the females); 2) the genetic p-distances with CO1 were high (>10%); 3) the molecular species delimitation methods were congruent under CO1 and CO1 + ITS2; and 4) under CO1 and CO1 + ITS2, the new species is a putative sister group of L. jaca + L. tenango.

Description of a new species of the genus Maua Distant (Hemiptera, Cicadidae) from China

Zootaxa ◽  
2021 ◽  
Vol 4949 (3) ◽  
pp. 582-588
Author(s):  
JIALI WANG ◽  
JOANNES P. DUFFELS ◽  
CONG WEI
Keyword(s):  
New Species ◽  
Dna Barcoding ◽  
Intraspecific Variation ◽  
Male Genitalia ◽  
Morphological Characters ◽  
Coi Gene ◽  
Morphological Observation ◽  
Mitochondrial Coi ◽  
Mitochondrial Coi Gene ◽  
A New Species

A new species, Maua squeala sp. nov., is described from China. This species is similar to M. affinis Distant, 1905 and M. palawanensis Duffels, 2009, but can be distinguished by the shorter and more slender body of the new species, the lateral fasciae on the mesonotum and the shape of the male genitalia. The intraspecific variation of this species is discussed based on morphological observation combined with sequences of partial mitochondrial COI gene (DNA barcoding) of individuals exhibiting different morphological characters. 

Pinellia hunanensis (Araceae), a new species supported by morphometric analysis and DNA barcoding

Phytotaxa ◽  
2013 ◽  
Vol 130 (1) ◽  
pp. 1 ◽  
Author(s):  
Steven G Newmaster ◽  
YU-JING LIU ◽  
XIAN-JIN WU ◽  
YUE LIU ◽  
Subramanyam Ragupathy ◽  
...  
Keyword(s):  
New Species ◽  
Dna Barcoding ◽  
Function Analysis ◽  
Detrended Correspondence Analysis ◽  
Morphological Characters ◽  
Preliminary Evidence ◽  
Morphometric Variation ◽  
Further Development ◽  
A New Species

Pinellia hunanensis, a new species from China, is described and illustrated. A key for the identification of all Pinellia species in China, Korea and Japan is included. A detrended correspondence analysis identified 6 groups of taxa including the new species. From the 20 samples, analyzing 38 morphological characters. A discriminant function analysis was used to rigorously test the classification of specimens provided in the cluster analysis. DNA barcoding provided phylogenetic support using NJ and Bayesian methods to distinguish all six taxa including the putative new species. This study provides preliminary evidence of morphometric variation within and among species of Pinellia, which allows further development of hypothesis concerning species boundaries. Discussions concerning medicinal product substitution within the genus Pinellia are presented in the context of conservation initiatives of species in China.

Integrative taxonomy of Mexican cycads: biogeography, morphology and DNA barcoding corroborate a new sympatric species in Ceratozamia (Zamiaceae)

Phytotaxa ◽  
2016 ◽  
Vol 268 (1) ◽  
pp. 25 ◽  
Author(s):  
LILÍ MARTÍNEZ-DOMÍNGUEZ ◽  
FERNANDO NICOLALDE-MOREJÓN ◽  
FRANCISCO VERGARA-SILVA ◽  
DENNIS W. STEVENSON
Keyword(s):  
New Species ◽  
Dna Barcoding ◽  
Taxonomic Status ◽  
Morphological Characters ◽  
Sympatric Species ◽  
Integrative Taxonomy ◽  
Los Tuxtlas ◽  
A New Species

A new species, from the montane region of Los Tuxtlas (state of Veracruz, Mexico), Ceratozamia subroseophylla, is proposed in accordance with the integrative taxonomy framework and through application of the taxonomic circle rationale. Our identification of this new species is the result of a thorough re-evaluation of four formerly described Ceratozamia species, namely: (1) C. miqueliana, with which it overlaps geographically; (2) C. mexicana; (3) C. robusta, which has also been previously seen as morphologically similar to C. miqueliana; and (4) C. brevifrons, which was at the center of a controversy concerning the morphological and geographic limits when compared to C. mexicana. Even though there are morphometric affinities of C. subroseophylla with this set of species, there are apomorphies in qualitative morphological characters and diagnostic nucleotidic variants established through character-based DNA barcoding to allow the recognition of this new species. The implications that our integrative taxonomy-based assessment of systematic diversity in Ceratozamia species from Veracruz have for evaluating the overall taxonomic status of the genus are discussed.

A New Species of Justicia (Acanthaceae: Acanthoideae: Justicieae) from Northeastern Brazil

2020 ◽  
Vol 45 (2) ◽  
pp. 328-333
Author(s):  
Camila Alcantara ◽  
Gleison Soares ◽  
Francisco de Assis Ribeiro dos Santos ◽  
Marccus Alves
Keyword(s):  
New Species ◽  
Rio Grande ◽  
Morphological Characters ◽  
Northeastern Brazil ◽  
Distribution Map ◽  
Key To Species ◽  
A New Species

Abstract—Justicia rubrobracteata, a new species from northeastern Brazil, is described and illustrated. The new species is morphologically similar to J. aequilabris due to its shrubby habit, and terminal and axillary spicate inflorescences with red flowers. However, J. rubrobracteata is differentiated mainly by the shape and color of its bracts and bracteoles as well as an orangish macula in the corolla, and a torulose capsule. In addition, J. rubrobracteata is only known from northeastern Brazil, from the states of Paraíba and Rio Grande do Norte, while J. aequilabris is widely distributed in Bolivia, Brazil, and Paraguay. A table with the main morphological characters of both species is included, as well as photographs, a key to species of Justicia for the states of Paraíba and Rio Grande do Norte in northeastern Brazil, a distribution map of both species, and conservation data for the new species.

A remarkable pogonophoran from a desalted shallow near the mouth of the Yenisey River in the Kara Sea, with the description of a new species of the genus Galathealinum (Annelida: Pogonophora: Frenulata)

2020 ◽  
Vol 29 (1) ◽  
pp. 138-154
Author(s):  
R.V. Smirnov ◽  
O.V. Zaitseva ◽  
A.A. Vedenin
Keyword(s):  
New Species ◽  
Arctic Ocean ◽  
Anterior Part ◽  
Morphological Characters ◽  
Kara Sea ◽  
The Arctic ◽  
External Layer ◽  
The Arctic Ocean ◽  
A New Species ◽  
Unusual Finding

A new species of Pogonophora obtained from one station at a depth of 25 m from near the Dikson Island in the Kara Sea is described. Galathealinum karaense sp. nov. is one of the largest pogonophorans, the first known representative of the rare genus Galathealinum Kirkegaard, 1956 in the Eurasian part of the Arctic Ocean and a highly unusual finding for the desalted shallow of the Yenisey Gulf. Several characters occurring in the new species are rare or unique among the congeners: under-developed, hardly discernible frills on the tube segments, extremely thin felted fibres in the external layer of the tube, and very faintly separated papillae in the anterior part of the trunk. Morphological characters useful in distinguishing species within the genus Galathealinum are defined and summarised in a table. Diagnosis of the genus Galathealinum is emended and supplemented by new characters. Additionally, three taxonomic keys are provided to the species of Galathealinum and to the known species of the Arctic pogonophorans using either animals or their empty tubes only, with the brief zoogeographical information on each Arctic species.

Two late-spring braconid genera of the subfamily Alysiinae (Hymenoptera: Braconidae) new for the fauna of Russia

2011 ◽  
Vol 20 (1) ◽  
pp. 85-95 ◽  
Author(s):  
S.A. Belokobylskij ◽  
T.S. Kostromina
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Late Spring ◽  
Key To Species ◽  
The Urals ◽  
Asian Continent ◽  
First Time ◽  
A New Species

Two braconid genera from the subfamily Alysiinae, Lodbrokia Hedqvist, 1962 and Asyntactus Marshall, 1898, are recorded in the fauna of Russia and in the Asian continent for the first time. A new species Lodbrokia uralica sp. nov. is described from the Urals, and a key to species of this genus is provided. Redescriptions of the female and male of Asyntactus rhogaleus Marshall, 1898 with information about the level of variability of its morphological characters are given. Asyntactus sigalphoides Marshall, 1898 is synonymised with A. rhogaleus Marshall, 1898 (syn. nov.).

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