scholarly journals Chondrophycus anabeliae and Laurencia digitata (Ceramiales, Rhodophyta) are recorded for the first time for Venezuela expanding their geographic distributions beyond the type localities

2020 ◽  
Vol 98 (4) ◽  
pp. 624-643
Author(s):  
Valéria Cassano ◽  
Luanda P. Soares ◽  
Beatriz Esther Vera-Vegas ◽  
Sonia Ardito ◽  
Santiago Gómez ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Species Diversity ◽  
Atlantic Ocean ◽  
Geographic Distribution ◽  
Dna Barcode ◽  
Rbcl Gene ◽  
Molecular Studies ◽  
Anatomical Characters ◽  
First Time ◽  
High Diversity

Background: Over the course of approximately 12 years, the species of the Laurencia complex have been systematically studied in the tropical and subtropical Atlantic Ocean, showing high diversity (48 species), which has been underestimated for the coast of Venezuela. Questions: What is the species diversity of the Laurencia complex in Venezuela? Studied species: Chondrophycus anabeliae, Laurencia digitata. Study site and dates: Cayo Muerto, Parque Nacional Morrocoy, Estado Falcón, Venezuela, 2015. Methods: For molecular studies, the plastid rbcL gene and the mitochondrial DNA barcode marker COI-5P were used, combined with the study of current morpho-anatomical characters used for the identification of the species of the complex. Results: The occurrence of Chondrophycus, as currently circumscribed, was confirmed for the first time for Venezuela. Chondrophycus anabeliae and Laurencia digitata are reported for the first time beyond the type localities. Tetrasporophytes are described for the first time for L. digitata. Conclusions: Our findings expand the geographic distribution of Ch. anabeliae and L. digitata for the Venezuelan Caribbean and the Atlantic Ocean, respectively.

First record of Polyneura bonnemaisonii (Delesseriaceae, Rhodophyta) from the Atlantic Ocean of Africa

2015 ◽  
Vol 8 ◽  
Author(s):  
Mustapha Hassoun ◽  
Hanaa Moussa ◽  
Hanaa Zbakh ◽  
Hassane Riadi ◽  
Mohamed Kazzaz ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Geographic Distribution ◽  
Related Species ◽  
Algal Species ◽  
First Record ◽  
Closely Related Species ◽  
North West ◽  
Red Algal ◽  
First Time

A red algal species,Polyneura bonnemaisonii(Delesseriaceae, Rhodophyta), is described for the first time in the Atlantic Ocean of Morocco. This is also the first reference of the occurrence of this species in Africa. This species was collected in the lower intertidal to subtidal zones, from Hyayda (north-west of Morocco). The Moroccan specimen is studied in detail and compared with other closely related species. Habitat, geographic distribution, description and illustration of the macroscopic and microscopic characters are presented and discussed in this work.

scholarly journals Ocorrência e Distribuição de Coccinelídeos (Coleoptera, Coccinellidae) Associados às Plantas Cítricas no Estado do Rio de Janeiro

2008 ◽  
Vol 1 (2) ◽  
pp. 23-27 ◽  
Author(s):  
William Costa Rodrigues ◽  
Paulo Cesar Rodrigues Cassino ◽  
Reinildes Silva Filho
Keyword(s):  
Species Diversity ◽  
Geographic Distribution ◽  
Rio De Janeiro ◽  
Population Fluctuation ◽  
Species Occurrence ◽  
Curinus Coeruleus ◽  
Janeiro State ◽  
High Diversity

O estudo objetivou registrar a ocorrência, flutuação populacional das espécies de coccinelídeos e delinear a distribuição geográfica (Coleoptera, Coccinellidae) associados as plantas cítricas no Estado do Rio de Janeiro. Foram visitados 11 municípios situados em duas regiões do Estado do Rio de Janeiro: Baixada Fluminense e Região das Baixadas Litorâneas (Região Citrícola). O período de estudo foi de janeiro de 2000 a junho de 2001. Os coccinelídeos foram observados, coletados, conservados e identificados. Desta forma 11 espécies foram observadas no Estado. Os municípios com maior ocorrência de espécies foi Seropédica e Araruama e com menor ocorrência foram São Pedro da Aldeia, Iguaba Grande, Tanguá e Itaboraí. A espécie que se verificou com maior distribuição foi Pentilia egena (Mulsant, 1850), presente em 10 municípios, e com menor distribuição foi Curinus coeruleus Mulsant 1850, presente em apenas um município. Quando avaliada a flutuação populacional, houve uma tendência na redução da população nos meses mais frios (inverno), sendo P. egena a espécie com maior média populacional (40%) e espécies dominantes juntamente com Azya luteipes Mulsant 1850. No período de estudo a diversidade de espécies foi considerada relativamente alta (α= 3,91) quando avaliada através do índice de Margalef e Shanon-Wiener (H'= 0,81), sendo considerada uma diversidade relativamente alta.   Occurrence and Distribution of Coccinelids (Coleoptera, Coccinellidae) Associates at the Citrus Plants in Rio de Janeiro State Abstract. This work aimed to register the occurrence, study the population fluctuation the ladybeetles species and to delineate the geographic distribution (Coleoptera, Coccinellidae) associated at citrus plants in Rio de Janeiro State. 11 districts situated in two regions of the Rio de Janeiro State were visited: "Baixada Fluminense" and "Região das Baixadas Litorâneas (Região Citrícola)". The study period was January 2000 to June 2001. The coccinellids was observed, collected, conserved, and identified. This way 11 species they were observed on State. The districts to larger species occurrence were Seropédica, and Araruama and to species lower was São Pedro da Aldeia, Iguaba Grande, Tanguá, Itaboraí, Natividade e Porciúncula. The species that it was verified in larger distribution were Pentilia egena (Mulsant, 1850), present in 10 districts, and with smaller distribution it was Curinus coeruleus Mulsant 1850, present in just only one district. When evaluated population fluctuation, there was a tendency in the reduction of the population in coldest (winter) moths, being P. egena the specie com average larger populational (40%) and dominant specie together with Azya luteipes Mulsant 1850. In study period the species diversity was high (α= 3.91) when evaluated through Margalef and Shanon-Wiener index's (H'=0.81), being considered a relatively high diversity.

scholarly journals Identifying seaweeds species of Chlorophyta, Phaeophyta and Rhodophyta using DNA barcodes

2020 ◽  
Author(s):  
Narra Prasanthi ◽  
Chinnamani Prasannakumar ◽  
D. Annadurai ◽  
S. Mahendran
Keyword(s):  
High Throughput Sequencing ◽  
Dna Barcode ◽  
Health Assessment ◽  
Environmental Dna ◽  
Rbcl Gene ◽  
Sequencing Technologies ◽  
Assessment And Monitoring ◽  
Bio Monitoring ◽  
Resource Exploration ◽  
First Time

AbstractStrengthening the DNA barcode database is important for a species level identification, which was lacking for seaweeds. We made an effort to collect and barcode seaweeds occurring along Southeast coast of India. We barcoded 31 seaweeds species belonging to 21 genera, 14 family, 12 order of 3 phyla (viz., Chlorophyta, Phaeophyta and Rhodophyta). We found 10 species in 3 phyla and 2 genera (Anthophycus and Chnoospora) of Phaeophyta were barcoded for the first time. Uncorrected p-distance calculated using K2P, nucleotide diversity and Tajima’s test statistics reveals highest values among the species of Chlorophyta. Over all K2P distance was 0.36. The present study revealed the potentiality of rbcL gene sequences in identification of all 3 phyla of seaweeds. We also found that the present barcode reference libraries (GenBank and BOLD) were insufficient in seaweeds identification and more efforts were needed for strengthening local seaweed barcode library to benefit rapids developing field such as environmental DNA barcoding. We also show that the constructed barcode library could aid various industrial experts involved in seaweed bio-resource exploration and taxonomy/non-taxonomic researches involved in climate, agriculture and epigenetics research. Since the rise of modern high-throughput sequencing technologies is significantly altering aquatic bio-monitoring applications and surveys, reference datasets such as ours will become essential in ecosystem’s health assessment and monitoring. The DNA barcode datasets produced in his study could be exclusively accessed at http://dx.doi.org/10.5883/DS-DBISW.

A “Rosetta Stone” for metazoan zooplankton: DNA barcode analysis of species diversity of the Sargasso Sea (Northwest Atlantic Ocean)

2010 ◽  
Vol 57 (24-26) ◽  
pp. 2234-2247 ◽  
Author(s):  
Ann Bucklin ◽  
Brian D. Ortman ◽  
Robert M. Jennings ◽  
Lisa M. Nigro ◽  
Christopher J. Sweetman ◽  
...  
Keyword(s):  
Species Diversity ◽  
Atlantic Ocean ◽  
Dna Barcode ◽  
Sargasso Sea ◽  
Northwest Atlantic ◽  
Rosetta Stone

scholarly journals First record of the littoral genus Alismobates (Acari: Oribatida) from the Atlantic ocean, with a redefinition of the family Fortuyniidae based on adult and juvenile morphology

Zootaxa ◽  
2012 ◽  
Vol 3301 (1) ◽  
pp. 1 ◽  
Author(s):  
TOBIAS PFINGSTL ◽  
REINHART SCHUSTER
Keyword(s):  
Atlantic Ocean ◽  
Geographic Distribution ◽  
First Record ◽  
Rocky Shores ◽  
Tidal Inundation ◽  
The Family ◽  
Definition Of ◽  
First Time

Alismobates inexpectatus sp.n., found on rocky shores of the archipelago of Bermuda is described from larva to adult. Addi-tionally a detailed description of the immatures of Fortuynia atlantica, also known from Bermuda, is given. Based on adult andjuvenile morphology the position of the genus Alismobates within the family of Fortuyniidae is clearly confirmed. Furthermorethe definition of the family Fortuyniidae is revised and the classification of its members is discussed. The Fortuyniidae are bestcharacterized by the presence of a “van der Hammen’s Organ”, whereas the configuration of cuticular channels differs remark-ably between the genera Fortuynia and Alismobates. The juveniles of A. inexpectatus and F. atlantica Krisper et Schuster, 2008exhibit conformity in most aspects, whereas porose areas associated with notogastral setae and singular pores in the lateral andposterior ventral folds leading into fine tracheal tubes are documented for the first time in fortuyniid immatures. These poresare part of a complex plastron system expressed in immatures to withstand tidal inundation. The present discovery of Alismo-bates inexpectatus is the first record of a member of this genus from Atlantic coasts and therefore represents a considerable extension of the geographic distribution of this taxon.

High species diversity of the genus Neopanorpa (Mecoptera: Panorpidae) in Yunnan Province, China

Zootaxa ◽  
2018 ◽  
Vol 4483 (1) ◽  
pp. 36 ◽  
Author(s):  
MENG WANG ◽  
BAO-ZHEN HUA
Keyword(s):  
Species Diversity ◽  
Phylogenetic Relationships ◽  
Yunnan Province ◽  
Biodiversity Hotspot ◽  
Hengduan Mountains ◽  
Taxonomic Study ◽  
Eastern Himalayas ◽  
High Species Diversity ◽  
First Time ◽  
High Diversity

Neopanorpa van der Weele, 1909 is the second largest genus of Panorpidae, and is endemic to the Oriental Region. Yunnan, a province in the southwestern region of China, is well-known as a biodiversity hotspot and abundant in Neopanorpa species. However, only sixteen species of Neopanorpa have been described from Yunnan hitherto and the taxonomic study of Neopanorpa in Yunnan has lagged far behind as compared with studies performed in neighboring regions. In the present study, notably high diversity of Neopanorpa species is found in the Hengduan Mountains of Yunnan. Seven species of Neopanorpa are described as new: N. semiorbiculata, N. tincta, N. triangulata, N. diancangshanensis, N. magnatitilana, N. longistipitata, and N. quadristigma spp. n. Neopanorpa spatulata Byers, 1965, originally described from Thailand, is recorded from China for the first time. Neopanorpa dimidiata Navás, 1930 is a synonym of N. brisi (Navás, 1930). Keys to species of Neopanorpa in Yunnan are provided. The phylogenetic relationships of Neopanorpa species from the Hengduan Mountains, the Indochinese Peninsula, and the eastern Himalayas are briefly discussed. 

scholarly journals DNA barcode library for European Gelechiidae (Lepidoptera) suggests greatly underestimated species diversity

ZooKeys ◽  
2020 ◽  
Vol 921 ◽  
pp. 141-157 ◽  
Author(s):  
Peter Huemer ◽  
Ole Karsholt ◽  
Leif Aarvik ◽  
Kai Berggren ◽  
Oleksiy Bidzilya ◽  
...  
Keyword(s):  
Species Diversity ◽  
Dna Barcode ◽  
Species Level ◽  
Coi Gene ◽  
Species Discrimination ◽  
Nominal Species ◽  
Nearest Neighbour ◽  
Cryptic Diversity ◽  
Dna Barcodes ◽  
First Time

For the first time, a nearly complete barcode library for European Gelechiidae is provided. DNA barcode sequences (COI gene – cytochrome c oxidase 1) from 751 out of 865 nominal species, belonging to 105 genera, were successfully recovered. A total of 741 species represented by specimens with sequences ≥ 500bp and an additional ten species represented by specimens with shorter sequences were used to produce 53 NJ trees. Intraspecific barcode divergence averaged only 0.54% whereas distance to the Nearest-Neighbour species averaged 5.58%. Of these, 710 species possessed unique DNA barcodes, but 31 species could not be reliably discriminated because of barcode sharing or partial barcode overlap. Species discrimination based on the Barcode Index System (BIN) was successful for 668 out of 723 species which clustered from minimum one to maximum 22 unique BINs. Fifty-five species shared a BIN with up to four species and identification from DNA barcode data is uncertain. Finally, 65 clusters with a unique BIN remained unidentified to species level. These putative taxa, as well as 114 nominal species with more than one BIN, suggest the presence of considerable cryptic diversity, cases which should be examined in future revisionary studies.

Darwin's two competing phylogenetic trees: marsupials as ancestors or sister taxa?

2012 ◽  
Vol 39 (2) ◽  
pp. 217-233 ◽  
Author(s):  
J. David Archibald
Keyword(s):  
Fossil Record ◽  
Evolutionary Biology ◽  
Phylogenetic Trees ◽  
Charles Darwin ◽  
The Other ◽  
Charles Lyell ◽  
Single Origin ◽  
Molecular Studies ◽  
Richard Owen ◽  
First Time

Studies of the origin and diversification of major groups of plants and animals are contentious topics in current evolutionary biology. This includes the study of the timing and relationships of the two major clades of extant mammals – marsupials and placentals. Molecular studies concerned with marsupial and placental origin and diversification can be at odds with the fossil record. Such studies are, however, not a recent phenomenon. Over 150 years ago Charles Darwin weighed two alternative views on the origin of marsupials and placentals. Less than a year after the publication of On the origin of species, Darwin outlined these in a letter to Charles Lyell dated 23 September 1860. The letter concluded with two competing phylogenetic diagrams. One showed marsupials as ancestral to both living marsupials and placentals, whereas the other showed a non-marsupial, non-placental as being ancestral to both living marsupials and placentals. These two diagrams are published here for the first time. These are the only such competing phylogenetic diagrams that Darwin is known to have produced. In addition to examining the question of mammalian origins in this letter and in other manuscript notes discussed here, Darwin confronted the broader issue as to whether major groups of animals had a single origin (monophyly) or were the result of “continuous creation” as advocated for some groups by Richard Owen. Charles Lyell had held similar views to those of Owen, but it is clear from correspondence with Darwin that he was beginning to accept the idea of monophyly of major groups.

Supplement to biota of agaricoid basidiomycetes of Oksky Biosphere Reserve

2008 ◽  
Vol 42 ◽  
pp. 123-129
Author(s):  
E. F. Malysheva ◽  
L. F. Volosnova
Keyword(s):  
Species Diversity ◽  
Biosphere Reserve ◽  
Botanical Institute ◽  
Komarov Botanical Institute ◽  
First Time

New data on species diversity of agaricoid fungi of Oksky Biosphere Reserve are given. The checklist of 41 species with indication of their localities and herbarium numbers (of the Herbarium of the Komarov Botanical Institute, LE) is provided. Three species (Conocybe gigasperma, Entoloma occultopigmentatum, E. scabiosum) are recorded for the first time in Russia.

scholarly journals Remarkable Species Diversity of the Leafhopper Genus Xestocephalus (Hemiptera: Cicadellidae: Aphrodinae) in Thailand

Insects ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 514
Author(s):  
Zonglei Liang ◽  
Christopher H. Dietrich ◽  
Wu Dai
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Single Species ◽  
Comparative Morphology ◽  
Malaise Trap ◽  
Field Sampling ◽  
Tropical Regions ◽  
Trap Field ◽  
The World ◽  
First Time

Xestocephalus Van Duzee is among the most common and widespread genera of Cicadellidae in the temperate and tropical regions of the world. In the present study, 205 specimens of the genus Xestocephalus were collected in Thailand, whereas only a single species of the genus was recorded previously using Malaise trap field sampling, studied by comparative morphology. Seventeen species were recognized, including twelve new species: X. binarius sp. nov., X. chrysanthemum sp. nov., X. cowboyocreus sp. nov., X. densprint sp. nov., X. dimiprocessus sp. nov., X. exproiecturus sp. nov., X. gracilus sp. nov., X. limpidissimus sp. nov., X. malleus sp. nov., X. nonattribus sp. nov., X. recipinams sp. nov., and X. tenusis Liang sp. nov. Four species were recorded in Thailand for the first time: Xestocephalus abyssinicus Heller and Linnavuori, Xestocephalus asper Linnavuori, Xestocephalus ishidae Matsumura, and Xestocephalus toroensis Matsumura. Detailed morphological descriptions of all 17 species are given; photographs of external habitus and male genitalia of the species from Thailand are provided. A checklist of species of the genus is also given, and a key to all Thailand Xestocephalus species is also provided.

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