Tachiramantis lassoalcalai (Barrio-Amorós, Rojas-Runjaic & Barros, 2010) (Anura, Craugastoridae): a new combination revealed by molecular evidence, with a description of its advertisement call

Zootaxa ◽  
2020 ◽  
Vol 4778 (2) ◽  
pp. 372-382
Author(s):  
FERNANDO J. M. ROJAS-RUNJAIC ◽  
LOURDES Y. ECHEVARRÍA ◽  
ADRIANA C. BECERRA-RONDÓN ◽  
EDWIN E. INFANTE-RIVERO
Keyword(s):  
Molecular Data ◽  
New Combination ◽  
Phylogenetic Position ◽  
Evolutionary Relationships ◽  
Advertisement Call ◽  
Molecular Evidence ◽  
Morphological Similarity ◽  
Eastern Slope ◽  
Close Relationship ◽  
Relationship Of

Pristimantis lassoalcalai Barrio-Amorós, Rojas-Runjaic & Barros, 2010 is a poorly known terrarana, endemic to the eastern slope of Sierra de Perijá in Venezuela. Although a close relationship of this species with Tachiramantis has been suspected based on its overall morphological similarity, this relationship had not been tested so far. On the basis of molecular data (two fragments of the 12S and 16S mtDNA genes) obtained from the type series, we reconstruct its evolutionary relationships and establish its phylogenetic position as a member of Tachiramantis. Based on this phylogenetic hypothesis, we transfer Pristimantis lassoalcalai to Tachiramantis as Tachiramantis lassoalcalai comb. nov. In addition, we describe its advertisement call. This is the fourth known species of the genus and the second to which its vocalization is described. 

Yanomamius n. gen., a new genus of tarantula from Brazilian and Venezuelan Amazon (Araneae, Theraphosidae), with description of three new species

Zootaxa ◽  
2021 ◽  
Vol 4933 (3) ◽  
pp. 324-340
Author(s):  
ROGÉRIO BERTANI ◽  
MARLUS QUEIROZ ALMEIDA
Keyword(s):  
New Species ◽  
Compact Group ◽  
Type Species ◽  
New Genus ◽  
Distal Tibia ◽  
Molecular Data ◽  
New Combination ◽  
Close Relationship ◽  
Three New Species ◽  
Relationship Of

The new genus Yanomamius n. gen. from Brazilian and Venezuelan Amazon is described, with three new species from Brazil: Y. franciscoi n. sp. (type species), Y. raonii n. sp., and Y. neblina n. sp. The enigmatic Venezuelan species described as Holothele waikoshiemi Bertani & Araújo, 2006 and presently included in Guyruita Guadanucci et al. (2007) is transferred to the new genus, making the new combination Y. waikoshiemi (Bertani & Araújo, 2006) n. comb. Yanomamius n. gen. is closely related with the schismatotheline genera Schismatothele Karsch, 1879 and Euthycaelus Simon, 1889 sharing as probable synapomorphies a group of short spines on the retrolateral distal tibia of male palp and the shape of bulb. They differ by the position of the spines in a compact group instead of in rows and by a tapering embolus. Females differ from Schismatothele and Euthycaelus by the spermathecae weakly sclerotized. A series of recent phylogenies based on molecular data suggested a close relationship between schimatothelines and psalmopoeines. The male tibia I of Yanomamius n. gen. species have a series of ridges or a single protuberance behind the tibial apophyses that resemble those of psalmopoeines and strengthen the idea of close relationship of the two subfamilies. 

scholarly journals The Complete DNA Sequence of the Mitochondrial Genome of a “Living Fossil,” the Coelacanth (Latimeria chalumnae)

Genetics ◽  
1997 ◽  
Vol 146 (3) ◽  
pp. 995-1010 ◽  
Author(s):  
Rafael Zardoya ◽  
Axel Meyer
Keyword(s):  
Mitochondrial Genome ◽  
Tandem Repeats ◽  
Phylogenetic Analyses ◽  
Large Data ◽  
Molecular Data ◽  
Phylogenetic Position ◽  
Data Set ◽  
Living Fossil ◽  
Latimeria Chalumnae ◽  
Relationship Of

The complete nucleotide sequence of the 16,407-bp mitochondrial genome of the coelacanth (Latimeria chalumnae) was determined. The coelacanth mitochondrial genome order is identical to the consensus vertebrate gene order which is also found in all ray-finned fishes, the lungfish, and most tetrapods. Base composition and codon usage also conform to typical vertebrate patterns. The entire mitochondrial genome was PCR-amplified with 24 sets of primers that are expected to amplify homologous regions in other related vertebrate species. Analyses of the control region of the coelacanth mitochondrial genome revealed the existence of four 22-bp tandem repeats close to its 3′ end. The phylogenetic analyses of a large data set combining genes coding for rRNAs, tRNA, and proteins (16,140 characters) confirmed the phylogenetic position of the coelacanth as a lobe-finned fish; it is more closely related to tetrapods than to ray-finned fishes. However, different phylogenetic methods applied to this largest available molecular data set were unable to resolve unambiguously the relationship of the coelacanth to the two other groups of extant lobe-finned fishes, the lungfishes and the tetrapods. Maximum parsimony favored a lungfish/coelacanth or a lungfish/tetrapod sistergroup relationship depending on which transversion:transition weighting is assumed. Neighbor-joining and maximum likelihood supported a lungfish/tetrapod sistergroup relationship.

Two new species of Roccellaceae (Ascomycota: Arthoniales) from Brazil, with the description of the new genus Sergipea

2013 ◽  
Vol 45 (5) ◽  
pp. 627-634 ◽  
Author(s):  
André APTROOT ◽  
Damien ERTZ ◽  
Edvaneide Leandro de LIMA ◽  
Katia Almeida de JESUS ◽  
Leonor Costa MAIA ◽  
...  
Keyword(s):  
New Species ◽  
New Genus ◽  
Phylogenetic Position ◽  
Generic Type ◽  
Bright Orange ◽  
Two New Species ◽  
Basal Branch ◽  
Close Relationship ◽  
Relationship Of ◽  
A New Species

AbstractThe new lichen genus Sergipea M. Cáceres, Ertz & Aptroot is described in the Roccellaceae, based on the new species Sergipea aurata M. Cáceres, Ertz & Aptroot from NE Brazil. The species was found in a remnant of Atlantic transition forest in Sergipe. It is similar in many respects to species of the genus Enterographa, but it is characterized by bright orange stromata, due to the presence of an anthraquinone, and a thallus with a somewhat byssoid hypothallus. Phylogenetically it is close to the genera Dichosporidium and Erythrodecton. The phylogenetic position of the generic type of Dichosporidium confirms the close relationship of the genus to Erythrodecton in the basal branch of the Roccellaceae. A new species of Enterographa is also described from NE Brazil. Enterographa rotundata E. L. Lima, M. Cáceres & Aptroot has solitary, round apothecia, which is unusual in this genus with mainly elongated apothecia or punctiform apothecia arranged in lines. It was found in Caatinga forest in Pernambuco.

Description of new chiactine-bearing sponges provides insights into the higher classification of Calcaronea (Porifera: Calcarea)

Zootaxa ◽  
2019 ◽  
Vol 4615 (2) ◽  
pp. 201
Author(s):  
ADRIANA ALVIZU ◽  
JOANA R. XAVIER ◽  
HANS TORE RAPP
Keyword(s):  
New Species ◽  
Phylogenetic Reconstruction ◽  
Molecular Data ◽  
Phylogenetic Study ◽  
Two New Species ◽  
Close Relationship ◽  
New Material ◽  
Relationship Of ◽  
The Antarctic

A recent phylogenetic study revealed a close relationship between chiactine-bearing (family Achramorphidae, order Leucosolenida) and pugiole-bearing (order Baerida) calcaronean sponges as well as new putative taxa within Achramorphidae. In this study, we present a revision of chiactine-bearing sponges based on morphological re-examination of type material and recently collected specimens, in addition to new molecular data for the ribosomal 18S and C-region of the 28S. We provide re-descriptions for all known chiactine-bearing species, and further describe two new species from the Antarctic (Achramorpha antarctica sp. nov. and Megapogon schiaparellii sp. nov.) and two new species and a new genus from the Nordic Seas (Achramorpha ingolfi sp. nov. and Sarsinella karasikensis gen. nov. sp. nov.). The new phylogenetic reconstruction based on ribosomal 18S and C-region of the 28S confirms previous findings about the close relationship of some members of Baerida and the family Achramorphidae of the order Leucosolenida. However, new material and the addition of molecular data from the type species of both taxa would be required to formally propose changes at (sub-)ordinal levels within the classification of Calcaronean sponges. 

scholarly journals A note on the systematic position of the Bathynellacea (Crustacea, Malacostraca) using molecular evidence

2002 ◽  
Vol 71 (4) ◽  
pp. 123-129 ◽  
Author(s):  
Ana Isabel Camacho ◽  
Isabel Rey ◽  
Beatriz A. Dorda ◽  
Annie Machordom ◽  
Antonio G. Valdecasas
Keyword(s):  
Molecular Data ◽  
Systematic Position ◽  
Molecular Evidence ◽  
Gene Fragment ◽  
16S Rdna Gene ◽  
Internal Morphology ◽  
Mt 16S Rdna ◽  
Relationship Of ◽  
First Time ◽  
The Relationship

Molecular data for the mt 16S rDNA gene fragment of a bathynellacean is here presented for the first time and used to analyze the relationship of the group within the crustacean class Malacostraca (Arthropoda, Bathynellacea). Two contrasting views have classified the bathynelids as being either within the order Syncarida or in a separate super-order Podophallocarida belonging to the infra-class Eonomostraca, a disagreement based mainly on debates over external and internal morphology. The preliminary analyses offered here in question the placement of this Bathynellacea within the Syncarida, and suggest the need for a further study of relationships among the malacostracan groups.

Biatora Britannica sp. Nov. and the Occurrence of Biatora Efflorescens in the British Isles

2001 ◽  
Vol 33 (3) ◽  
pp. 181-187 ◽  
Author(s):  
Christian Printzen ◽  
H. Thorsten Lumbsch ◽  
Alan Orange
Keyword(s):  
Its Region ◽  
Molecular Data ◽  
Sister Taxon ◽  
British Isles ◽  
Close Relationship ◽  
Nuclear Its ◽  
Relationship Of

AbstractBiatora Britannica sp. nov is described from Wales. The species is the sorediate sister taxon of the Madeiran Biatora hertelii. The close relationship is supported by the presence of the hymenial pigment Hertelii-green, which is hitherto known only from these two species. Molecular data from the nuclear ITS-region of 14 Bratora¯ species renders further support for the close relationship of both species. Sterile, sorediate material from the British Isles earlier referred to B. efflorescens may in fact belong to B. britannica.

Phylogenetic position of Arabis arenicola and generic limits of Aphragmus and Eutrema (Brassicaceae) based on sequences of nuclear ribosomal DNA

2006 ◽  
Vol 84 (2) ◽  
pp. 269-281 ◽  
Author(s):  
Suzanne I. Warwick ◽  
Ihsan A. Al-Shehbaz ◽  
Connie A. Sauder
Keyword(s):  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Its Region ◽  
Molecular Data ◽  
The Other ◽  
Nuclear Ribosomal Dna ◽  
Phylogenetic Position ◽  
New Combinations ◽  
Arabidopsis Lyrata ◽  
Relationship Of

Sequence data from the nuclear ribosomal internal transcribed spacer (ITS) region of 45 taxa were used to determine the phylogenetic relationship of Arabis arenicola to Arabis , Arabidopsis , Braya , and Eutrema , and that of Eutrema to the purportedly related genera Aphragmus , Lignariella , Neomartinella , Platycraspedum , Taphrospermum , and Thellungiella . Arabis arenicola was originally described as Eutrema in 1830, transferred to Arabis in 1898, and has remained in Arabis to the present, even though it is morphologically more similar to Arabidopsis, Braya, and Eutrema. Sequence data were obtained from representative taxa of Arabis, Arabidopsis, and related Boechera and Catolobus, Braya and Neotorularia, and Eutrema, Aphragmus, Lignariella, Neomartinella, Platycraspedum, Taphrospermum, and Thellungiella. The five Arabis arenicola accessions examined had ITS sequences that were identical to each other and to four Arabidopsis lyrata accessions. In both maximum parsimony and maximum likelihood analyses, Arabis arenicola fell within the Arabidopsis clade and was closely aligned with Arabidopsis lyrata. Two of six purportedly related genera were not closely related to Eutrema. Both analyses placed Lignariella within a separate well-supported clade with Aphragmus, while the other four genera, Neomartinella, Platycraspedum, Taphrospermum, and Thellungiella, fell within a well-supported clade with Eutrema. Morphology and molecular data strongly suggest transferring Arabis arenicola to Arabidopsis, expanding Aphragmus to include Lignariella, and expanding Eutrema to include Neomartinella, Platycraspedum, Taphrospermum, and Thellungiella. New combinations in Arabidopsis and Aphragmus are proposed.

Phylogenetic analysis of the Neotropical Pristimantis leptolophus species group (Anura: Craugastoridae): molecular approach and description of a new polymorphic species 

Zootaxa ◽  
2017 ◽  
Vol 4242 (2) ◽  
pp. 313
Author(s):  
MAURICIO RIVERA-CORREA ◽  
CARLOS JIMÉNEZ-RIVILLAS ◽  
JUAN M. DAZA
Keyword(s):  
Phylogenetic Analysis ◽  
Phylogenetic Reconstruction ◽  
Morphological Diversity ◽  
Molecular Data ◽  
Species Group ◽  
Morphological Data ◽  
Phylogenetic Position ◽  
Molecular Evidence ◽  
Polymorphic Species ◽  
Species Groups

Pristimantis, distributed throughout the New World tropics, is the most speciose vertebrate genus. Pristimantis presents an enormous morphological diversity and is currently divided into several demonstrably non-monophyletic phenetic species groups. With the purpose of increasing our understanding of Pristimantis systematics, we present the first phylogenetic analysis using molecular evidence to test the monophyly and infer evolutionary relationships within the Pristimantis leptolophus group, an endemic group of frogs from the highlands of the Colombian Andes. Our phylogenetic reconstruction recovers the group as monophyletic with high support, indicating general concordance between molecular data and morphological data. In addition, we describe a new polymorphic species lacking conspicuous tubercles, a regular attribute among species of the P. leptolophus species group and endemic from the Páramo de Sonsón complex (Antioquia, Colombia). The phylogenetic position of the new species is inferred and other systematic implications in the light of our results are discussed. 

scholarly journals Mitogenomics suggests a sister relationship of Relicanthus daphneae (Cnidaria: Anthozoa: Hexacorallia: incerti ordinis) with Actiniaria

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Madelyne Xiao ◽  
Mercer R. Brugler ◽  
Michael B. Broe ◽  
Luciana C. Gusmão ◽  
Marymegan Daly ◽  
...  
Keyword(s):  
Hydrothermal Vents ◽  
Phylogenetic Reconstruction ◽  
Evolutionary Relationship ◽  
Molecular Data ◽  
Sea Anemone ◽  
Trophic Levels ◽  
Phylogenetic Position ◽  
Sea Anemones ◽  
Sister Relationship ◽  
Relationship Of

AbstractRelicanthus daphneae (formerly Boloceroides daphneae) was first described in 2006 as a giant sea anemone based on morphology. In 2014, its classification was challenged based on molecular data: using five genes, Relicanthus was resolved sister to zoanthideans, but with mixed support. To better understand the evolutionary relationship of Relicanthus with other early-branching metazoans, we present 15 newly-sequenced sea anemone mitochondrial genomes and a mitogenome-based phylogeny including all major cnidarian groups, sponges, and placozoans. Our phylogenetic reconstruction reveals a moderately supported sister relationship between Relicanthus and the Actiniaria. Morphologically, the cnidae of Relicanthus has apical flaps, the only existing synapomorphy for sea anemones. Based on both molecular and morphological results, we propose a third suborder (Helenmonae) within the Actiniaria to accommodate Relicanthus. Although Relicanthus shares the same gene order and content with other available actiniarian mitogenomes, it is clearly distinct at the nucleotide level from anemones within the existing suborders. The phylogenetic position of Relicanthus could reflect its association with the periphery of isolated hydrothermal vents, which, although patchy and ephemeral, harbor unique chemosynthetic communities that provide a relatively stable food source to higher trophic levels over long evolutionary timescales. The ability to colonize the deep sea and the periphery of new vent systems may be facilitated by Relicanthus’ large and extremely yolky eggs.

Phylogenetic relationships of Palaeogene ziphodont eusuchians and the status ofPristichampsusGervais, 1853

2012 ◽  
Vol 103 (3-4) ◽  
pp. 521-550 ◽  
Author(s):  
Christopher A. Brochu
Keyword(s):  
Phylogenetic Relationships ◽  
Middle Eocene ◽  
Distinct Species ◽  
Sister Group ◽  
New Combination ◽  
Phylogenetic Position ◽  
Western North America ◽  
Close Relationship ◽  
The Status ◽  
Group A

ABSTRACTEusuchians with deep snouts and labiolingually compressed teeth are known from the Palaeogene of Laurasia. These are usually referred to Pristichampsinae, but the type species,Pristichampsus rollinati, is based on insufficiently diagnostic material and should be treated as a nomen dubium. At least two Lutetian species formerly referred toPristichampsuscan be recognised –Boverisuchus magnifronsin Germany and possibly elsewhere in Europe, andBoverisuchus vorax, new combination, in western North America. Material from the middle Eocene of Italy and Texas may represent distinct species. A phylogenetic analysis confirms their close relationship and also supports a relationship with two Asian forms – early EocenePlanocrania datangensisand PalaeocenePlanocrania hengdongensis. The name Planocraniidae Li 1976 is applied to this group. A distinctive quadrate with a prominent dorsal peak between medial and lateral hemicondyles is known only inBoverisuchus, and although the teeth ofPlanocraniaare flattened, they are not serrated. Planocraniids maintain a phylogenetic position as the sister group to Crocodyloidea+Alligatoroidea, but this part of the tree is unstable and discovery of older, more primitive planocraniids will help resolve conflicts on the phylogenetic relationships of extant crocodylian lineages.

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