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.

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. 

Berteroa physocarpa (Brassicaceae), a new species from NW Turkey based on morphological and molecular data

Phytotaxa ◽  
2017 ◽  
Vol 305 (2) ◽  
pp. 87
Author(s):  
SIRRI YÜZBAŞIOĞLU ◽  
IHSAN A. AL-SHEHBAZ ◽  
ELİF YÜZBAŞIOĞLU ◽  
EDA DALYAN
Keyword(s):  
New Species ◽  
Its Region ◽  
Molecular Data ◽  
Alpine Zone ◽  
Nw Turkey ◽  
Maximum Likelihood Methods ◽  
History Of ◽  
Morphological And Molecular Data ◽  
Relationship Of ◽  
A New Species

Berteroa physocarpa, a new species from the subalpine-alpine zone (1600−2200 m) of northwest Anatolia, is described and illustrated. It shares with the other species of Berteroa 2n=16 and morphologically is readily distinguished from them by having distinctly inflated fruit with glabrous valves. Sequences of nuclear ribosomal transcribed spacer (ITS) region were used to determine the relationship of Berteroa species using maximum likelihood methods. The phylogenetic results confirmed the recently established systematic history of Berteroa and also supported the recognition of this new species.

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.

scholarly journals Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheri

2020 ◽  
Vol 18 (2) ◽  
Author(s):  
Pedro Senna Bittencourt ◽  
Valéria Nogueira Machado ◽  
Bruce Gavin Marshall ◽  
Tomas Hrbek ◽  
Izeni Pires Farias
Keyword(s):  
Phylogenetic Relationships ◽  
Species Complex ◽  
Molecular Data ◽  
Morphological Data ◽  
Sister Taxon ◽  
Taxonomic History ◽  
Relationship Of

ABSTRACT Neon tetras (Paracheirodon spp.) are three colorful characid species with a complicated taxonomic history, and relationships among the species are poorly known. Molecular data resolved the relationships among the three neon tetras, and strongly supported monophyly of the genus and its sister taxon relationship to Brittanichthys. Additionally, the sister-taxon relationship of the rummy-nose tetras Hemigrammus bleheri and Petitella georgiae was strongly supported by molecular and morphological data. Therefore, we propose to transfer the rummy-nose tetras H. bleheri and H. rhodostomus to the genus Petitella. Furthermore, Petitella georgiae is likely to be a species complex comprised of at least two species.

Eutrema racemosum (Eutremeae, Brassicaceae), a new tetraploid species from southwest China

Phytotaxa ◽  
2015 ◽  
Vol 224 (2) ◽  
pp. 185 ◽  
Author(s):  
Guoqian Hao ◽  
Ihsan Al-Shehbaz ◽  
Qian Wang ◽  
Qianlong Liang ◽  
Jianquan Liu
Keyword(s):  
Southwest China ◽  
Phylogenetic Analyses ◽  
Its Region ◽  
Distinct Species ◽  
Molecular Data ◽  
Small Genome ◽  
Sequence Variations ◽  
Nuclear Its ◽  
Well Differentiated ◽  
Germination Experiments

The new species Eutrema racemosum is described, and its relationship to the closely related E. heterophyllum and E. edwardsii are discussed based on morphological, cytological, and molecular data.  The novelty differs from E. heterophyllum by having elongated racemes and from E. edwardsii by somewhat reflexed fruiting pedicels. Four chloroplast DNA fragments and nuclear ITS region were sequenced for multiple individuals of each species. Three species show distinct and stable sequence variations. Eutrema racemosum and E. heterophyllum form a clade sister to that of E. edwardsii in phylogenetic analyses of sequence variations. Our cytological studies revealed that E. heterophyllum is a diploid with the small genome size, while E. racemosum is a tetraploid with duplicate genomes. These available data support the recognition of E. racemosum as a distinct species well differentiated morphologically and genetically, as well as well-isolated reproductively from its sister species E. heterophyllum. We further found some interspecific triploid hybrids between tetraploid E. racemosum and diploid E. heterophyllum, which seem to be sterile according to our germination experiments.

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. 

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. 

scholarly journals A new species of Sigmaxinella Dendy, 1897 (Demospongiae, Poecilosclerida, Desmacellidae) from the Tasman Sea

Zootaxa ◽  
2011 ◽  
Vol 2901 (1) ◽  
pp. 19 ◽  
Author(s):  
KIRSTY D. MITCHELL ◽  
KATHRYN A. HALL ◽  
JOHN N. A. HOOPER
Keyword(s):  
New Species ◽  
South African ◽  
Submarine Canyon ◽  
Single Species ◽  
Molecular Data ◽  
Mt Dna ◽  
Tasman Sea ◽  
Close Relationship ◽  
Relationship Of ◽  
A New Species

Sigmaxinella hipposiderus sp. nov. is described from morphological and molecular datasets, based on a single known specimen collected from the upper margin of a submarine canyon on the edge of the continental shelf, south-east of coastal Victoria (Tasman Sea), Australia. Morphologically, the species is clearly assigned to the genus Sigmaxinella, and preliminary molecular data (COI mt DNA) support the close relationship of this new species to other specimens attributed to Desmacellidae. This is the thirteenth species of Sigmaxinella and the seventh described for the Australian EEZ. Remarkably, 12 of the 13 known species are recorded predominantly from temperate or subantarctic Australian, New Zealand or South African waters, with only a single species described so far from the temperate Atlantic Ocean.

scholarly journals Silene sunhangii (Caryophyllaceae), a new species from China

PhytoKeys ◽  
2019 ◽  
Vol 135 ◽  
pp. 59-69
Author(s):  
Nan Lin ◽  
Dai-Gui Zhang ◽  
Xian-Han Huang ◽  
Jian-Wen Zhang ◽  
Jing-Yuan Yang ◽  
...  
Keyword(s):  
New Species ◽  
Taxonomic Status ◽  
Its Region ◽  
Distinct Species ◽  
Molecular Data ◽  
Central China ◽  
Morphological Data ◽  
Nuclear Its ◽  
Morphological And Molecular Data ◽  
A New Species

Silene sunhangii, a new species of Caryophyllaceae known from only three populations in Hubei and Hunan provinces of central China, is described. Both morphological and molecular data were used to assess the taxonomic status and relationships of this species. Morphologically, S. sunhangii is most similar to S. platyphylla Franch. from which it differs most readily in having 3-veined elliptical leaves without pubescence, tasseled catacorolla, pale purple to red petals without a linear lobe or narrow tooth and lanceolate, bifid to one third. A phylogenetic analysis based on nuclear ITS region identified the new species as a well-supported, independent lineage. Our new species is nested within a grade that encompasses species representing a polyphyletic Silene sect. Physolychnis (Benth.) Bocquet. Both the genetic and morphological data support the recognition of Silene sunhangii as a distinct species, although there is inconsistency between these two datasets as to the relationships of the new species.

Heterorhabditis mexicana n. sp. (Rhabditida: Heterorhabditidae) from Tamaulipas, Mexico, and morphological studies of the bursa of Heterorhabditis spp.

Nematology ◽  
2004 ◽  
Vol 6 (2) ◽  
pp. 231-244 ◽  
Author(s):  
Khuong Nguyen ◽  
David Sharpiro-Ilan ◽  
Robin Stuart ◽  
Clay McCoy ◽  
Rosalind James ◽  
...  
Keyword(s):  
New Species ◽  
Its Region ◽  
Molecular Data ◽  
The Body ◽  
Sister Taxon ◽  
Infective Juvenile ◽  
Body Width ◽  
Morphological Studies ◽  
Morphological And Molecular Data ◽  
A New Species

Abstract A new species of nematode in the genus Heterorhabditis was found in the northern part of the state of Tamaulipas, Mexico. Morphological and molecular data indicate that this nematode is a new species. The new species is described as Heterorhabditis mexicana n. sp. and is a sister taxon to H. indica. Heterorhabditis mexicana n. sp. is morphologically similar to H. bacteriophora, H. brevicaudis and H. indica and can be distinguished from these species mainly by male and female characters. Of the examined specimens of H. mexicana n. sp., 70% of males have eight pairs of bursal papillae, compared to nine in all other species. The ratio of the gubernaculum to spicule length (GS ratio) is higher than that of H. bacteriophora, H. brevicaudis and H. indica and the length of the spicule relative to anal body width (SW) is lower than all other species. For females, the vulval form of the new species is quite different from that of those species with a similar morphology (i. e ., H. bacteriophora and H. indica) and more closely resembles that of H. zealandica. The new species can also be distinguished from H. megidis, H. zealandica and H. marelatus by the body length, pharynx length of the infective juvenile and D% (distance from anterior end/pharynx length × 100), GS and SW ratios of males. In the ITS region of the rDNA tandem repeating unit, H. mexicana n. sp. has evolved 13 autapomorphic nucleotide character states, differing from its sister taxon H. indica at 113 aligned positions. The morphological and molecular data are sufficient to identify cladogenesis and delimit H. mexicana n. sp. as evolving independently from the other members of the genus.

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