A new species of Physaloptera (Nematoda: Spirurida) from Proechimys gardneri (Rodentia: Echimyidae) from the Amazon rainforest and molecular phylogenetic analyses of the genus

2019 ◽  
Vol 94 ◽  
Author(s):  
A. Maldonado ◽  
R.O. Simões ◽  
J. São Luiz ◽  
S.F. Costa-Neto ◽  
R.V. Vilela
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Amazon Rainforest ◽  
Ancestral State ◽  
Intermediate Hosts ◽  
The Status ◽  
Molecular Phylogenetic ◽  
History Of ◽  
A New Species

Abstract Nematodes of the genus Physaloptera are globally distributed and more than 100 species are known. Their life cycle involves insects, including beetles, cockroaches and crickets, as intermediate hosts. This study describes a new species of Physaloptera and reports molecular phylogenetic analyses to determine its relationships within the family Physalopteridae. Physaloptera amazonica n. sp. is described from the stomach of the caviomorph rodent Proechimys gardneri collected in the Amazon rainforest in the state of Acre, Brazil. The species is characterized by the male having the first and second pair of sessile papillae asymmetrically placed, lacking a median papilla-like protuberance between the third pairs of sessile papillae, differentiated by size and shape of the spicules, while females have four uterine branches. For both nuclear 18S rRNA and MT-CO1 gene-based phylogenies, we recovered Turgida sequences forming a clade nested within Physaloptera, thus making Physaloptera paraphyletic to the exclusion of Turgida, suggesting that the latter may have evolved from the former monodelphic ancestral state to a derived polydelphic state, or that some species of Physaloptera may belong to different genera. Relationships between most taxa within Physaloptera were poorly resolved in our phylogenies, producing multifurcations or a star phylogeny. The star-like pattern may be attributed to evolutionary processes where past simultaneous species diversification events took place. Physaloptera amazonica n. sp. formed an independent lineage, separately from the other species of Physaloptera, thus supporting the status of a new species. However, all molecular data suggested a closer relationship with other Neotropical species. In conclusion, we added a new species to this already largely diverse genus Physaloptera, bringing new insights to its phylogenetic relationships. Further analyses, adding more species and markers, should provide a better understanding of the evolutionary history of physalopterids.

Cymbidium xichouense (Orchidaceae; Epidendroideae), a new species from China: evidence from morphological and molecular data

Phytotaxa ◽  
2021 ◽  
Vol 484 (3) ◽  
pp. 291-297
Author(s):  
XINYU XU ◽  
CHANG-CHUN DING ◽  
WENQI HU ◽  
XIA YU ◽  
YU ZHENG ◽  
...  
Keyword(s):  
New Species ◽  
Yunnan Province ◽  
Phylogenetic Analyses ◽  
Plastid Dna ◽  
Molecular Data ◽  
Morphological Evidence ◽  
The Status ◽  
Nuclear Its ◽  
Morphological And Molecular Data ◽  
A New Species

A new species of Cymbidium (Orchidaceae), Cymbidium xichouense, from Yunnan Province, China, is described and illustrated based on morphological evidence and molecular analyses. The new orchid is morphologically similar to C. qinbeiense, but it has several morphological features that distinguish it from C. qiubeinense and all other recognized species in Cymbidium. Phylogenetic analyses based on nuclear (ITS) and plastid DNA (matK) were conducted, and the results also supported the status of C. xichouense as a new species, which is sister to C. qiubeiense.

Integrative taxonomy of the Asian skinks Sphenomorphus stellatus (Boulenger, 1900) and S. praesignis (Boulenger, 1900) with the resurrection of S. annamiticus (Boettger, 1901) and the description of a new species from Cambodia

Zootaxa ◽  
2019 ◽  
Vol 4683 (3) ◽  
pp. 381-411 ◽  
Author(s):  
L. LEE GRISMER ◽  
PERRY L., JR. WOOD ◽  
EVAN S. H. QUAH ◽  
SHAHRUL ANUAR ◽  
NIKOLAY A. POYARKOV ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Color Pattern ◽  
Integrative Taxonomy ◽  
Peninsular Malaysia ◽  
Wildlife Sanctuary ◽  
Molecular Phylogenetic ◽  
Univariate Analyses ◽  
A New Species

Molecular phylogenetic analyses of the sister species Sphenomorphus stellatus and S. praesignis based on the mitochondrial genes 12S and 16S rRNA recover the former as paraphyletic with respect to the latter in that a specimen of S. stellatus from the type locality in Peninsular Malaysia is more closely related to S. praesignis than to Indochinese populations of S. stellatus. Furthermore, the phylogeny indicates that the Indochinese populations represent two species, thus resulting in four major lineages within this clade. These relationships are consistent with multivariate and univariate analyses of morphological and discrete color pattern data which statistically define and diagnose the four lineages and together with the molecular data, provide the foundation for robust, testable, species-level hypotheses. As such, S. stellatus is herein restricted to Peninsular Malaysia; S. annamiticus is resurrected for the circum-continental populations ranging through southeastern Thailand, southern Cambodia, and southern Vietnam; a new species—S. preylangensis sp. nov.—is described from an isolated mountain, Phnom Chi, from the Prey Lang Wildlife Sanctuary in central Cambodia; and the taxonomy of S. praesignis remains unchanged. The description of S. preylangensis sp. nov. underscores the necessity to conserve this remnant of lowland evergreen rainforest in the Prey Lang Wildlife Sanctuary. 

The formerly enigmatic Unidentiidae in the limelight again: a new species of the genus Unidentia from Thailand (Gastropoda: Nudibranchia)

Zootaxa ◽  
2019 ◽  
Vol 4551 (5) ◽  
pp. 556 ◽  
Author(s):  
TATIANA KORSHUNOVA ◽  
RAHUL MEHROTRA ◽  
SPENCER ARNOLD ◽  
KENNET LUNDIN ◽  
BERNARD PICTON ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Morphological Data ◽  
Sea Slugs ◽  
The Family ◽  
Molecular Phylogenetic ◽  
Morphological Differences ◽  
First Time ◽  
A New Species

An integrative molecular and morphological study is presented for the family Unidentiidae. Molecular phylogenetic analyses were conducted with the inclusion of all previous and newly obtained molecular data for the family Unidentiidae Millen & Hermosillo 2012. A new species of the genus Unidentia Millen & Hermosillo 2012, U. aliciae sp. nov., is described from Thailand as part of an inventory of sea slugs at Koh Tao. All up-to-date available morphological data for the species of the genus Unidentia is for the first time summarized. Morphological differences among the different species of Unidentia are clarified showing that every species has its own distinguishable morphological traits. According to the new molecular and morphological data, the family Unidentiidae is re-confirmed as a well-supported taxon of the aeolidacean nudibranchs. The taxonomy and phylogeny of the Aeolidacea in the light of the family Unidentiidae is briefly discussed and necessity of a fine-scale and narrowly-defined taxa approach instead of a ‘‘superlumping’’ one is highlighted. 

scholarly journals Type studies of Rossbeevera bispora, and a new species of Rossbeevera from south China

MycoKeys ◽  
2019 ◽  
Vol 51 ◽  
pp. 15-28
Author(s):  
Md. Iqbal Hosen ◽  
Xiang-Jing Zhong ◽  
Genevieve Gates ◽  
Takamichi Orihara ◽  
Tai-Hui Li
Keyword(s):  
New Species ◽  
Nature Reserve ◽  
Phylogenetic Analyses ◽  
Guangdong Province ◽  
Molecular Data ◽  
Molecular Phylogenetic ◽  
Type Studies ◽  
A New Species ◽  
Bluish Discoloration ◽  
Northern And Southern Hemispheres

The type of Rossbeeverabispora and additional collections from the type location and adjacent areas were studied. Molecular data for R.bispora derived from the new collections are provided. In addition, R.griseobrunnea, a new species of Rossbeevera, is described from Xiangtoushan National Nature Reserve, Guangdong Province of China. The new species is characterized by its globose to subglobose sequestrate basidiomata with grayish white to grayish brown pileus, pale bluish discoloration in some parts of the hymenophore when injured becoming rusty brown to dark brown after being exposed to the air, fusoid (star-shaped in cross section) basidiospores 17–20 × 9–12 μm, and subcutis elements in the pileus. Based on multi-locus (ITS+nrLSU+tef1-α+rpb2) molecular phylogenetic analyses, both species appear as sister to R.paracyanea. We present color photos, macro- and micro-description, SEM basidiospores, molecular affinities of the species and compare them with morphologically similar taxa within the genus. A key to the species known from northern and southern hemispheres is provided.

A new pratylenchid nematode, Hoplotylus japonicus n. sp. (Tylenchina: Pratylenchidae) from the rhizosphere of Japanese maple, Acer palmatum (Thumb.)

Nematology ◽  
2020 ◽  
Vol 22 (10) ◽  
pp. 1131-1140
Author(s):  
Jianfeng Gu ◽  
Munawar Maria ◽  
Yiwu Fang ◽  
Majid Pedram
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
Internal Transcribed Spacer ◽  
Anterior Margin ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Dorsal Side ◽  
Lateral View ◽  
Molecular Phylogenetic ◽  
A New Species

Summary During quarantine inspections, a new species of Hoplotylus was detected from the rhizosphere of the Japanese maple, Acer palmatum, imported into China from Japan. Hoplotylus japonicus n. sp. is characterised by a stout 431-602 μm long body, well-developed 20.0-24.5 μm long stylet with tulip-shaped knobs having rounded sides in lateral view and a rounded anterior margin, excretory pore located slightly posterior to the hemizonid, usually empty, spermatheca, conical tail with a spike-like projection, which is distally smooth on the dorsal side, and males not found. It was morphologically compared with four currently known species of the genus, viz., H. femina, H. montanus, H. silvaticus, and H. sjacobi. In molecular phylogenetic analyses using 18S, 28S and internal transcribed spacer (ITS) ribosomal DNA sequences, the new species formed a clade with the only currently sequenced species of the genus, H. femina, in all phylogenies. This is the second species of the genus characterised by molecular data and the second species recovered from Japan.

Cymbidium atrolabium (Orchidaceae; Epidendroideae), a new species from China: evidence from morphological and molecular data

Phytotaxa ◽  
2019 ◽  
Vol 423 (2) ◽  
pp. 87-92
Author(s):  
XING-YU LIAO ◽  
XUE-DIE LIU ◽  
YU-TING JIANG ◽  
DI-YANG ZHANG ◽  
SI-REN LAN ◽  
...  
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Detailed Comparison ◽  
Molecular Data ◽  
Orchid Species ◽  
The Status ◽  
Morphological And Molecular Data ◽  
Pale Green ◽  
A New Species

A new orchid species, Cymbidium atrolabium, from Yunnan Province, China, is described and illustrated based on morphological and molecular analyses. A detailed comparison between the newly discovered orchid and other members of Cymbidium was conducted. The new plant is similar to C. tortisepalum but differs by having a dark-purple inflorescence with smaller flowers, sepals that are pale green-yellow with a dark-purple broad midrib, petals that are dark-purple with pale green-yellow margins and a smaller, dark purple, densely papillose lip. Phylogenetic analyses based on nuclear ribosomal ITS and plastid (matK, rbcL) sequence data support the status of C. atrolabium as a new species.

scholarly journals Amanita ahmadii, a new species of Amanita subgenus Amanitina section Validae from Pakistan

MycoKeys ◽  
2019 ◽  
Vol 56 ◽  
pp. 81-99
Author(s):  
Sana Jabeen ◽  
Munazza Kiran ◽  
Junaid Khan ◽  
Ishtiaq Ahmad ◽  
Habib Ahmad ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Coniferous Forests ◽  
New Taxon ◽  
Data Set ◽  
Molecular Phylogenetic ◽  
A New Species

A new species from coniferous forests in Pakistan, Amanitaahmadii, is described on the basis of morpho-anatomy and molecular data set analyses. This species is characterized by its medium-sized to large basidiomata, grayish brown to brown pileal surface and rimose pileus margin with gray to dark brown verrucose veil remnants, a cream stipe with bulbous base having grayish brown or brown longitudinal striations above the annulus, a scaly surface towards the base, globose to broadly ellipsoid and amyloid basidiospores, and the absence of clamped septa in all tissues. Molecular phylogenetic analyses based on ITS and LSU sequences confirmed its identity as a new taxon nested within subgen. Amanitinasect.Validae.

Cymbidium brevifolium (Orchidaceae; Epidendroideae), a new species from China: evidence from morphological and molecular data

Phytotaxa ◽  
2020 ◽  
Vol 464 (3) ◽  
pp. 236-242
Author(s):  
ZHUANG ZHOU ◽  
DIYANG ZHANG ◽  
GUI-ZHEN CHEN ◽  
XIA YU ◽  
CHENG-RU LI ◽  
...  
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Plastid Dna ◽  
Detailed Comparison ◽  
Molecular Data ◽  
The Status ◽  
Nuclear Its ◽  
Morphological And Molecular Data ◽  
A New Species

A new orchid species, Cymbidium brevifolium, from Hubei Province, China, is described and illustrated based on morphological and molecular analyses. A detailed comparison between the newly discovered orchid and other members of Cymbidium was conducted. The new orchid is distinct from all other recognized species in Cymbidium. Phylogenetic analyses based on nuclear (ITS) and plastid DNA (matK and rbcL) sequence data support the status of C. brevifolium as a new species, which is sister to C. faberi.

Pedicularis wanghongiae (Orobanchaceae), a new species from Yunnan, southwestern China

Phytotaxa ◽  
2015 ◽  
Vol 217 (1) ◽  
pp. 53 ◽  
Author(s):  
Min-Lu Liu ◽  
Wen-Bin Yu
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Southwestern China ◽  
Key To Species ◽  
Wet Meadow ◽  
Exine Ornamentation ◽  
Molecular Phylogenetic ◽  
In Series ◽  
A New Species

Pedicularis wanghongiae M.L.Liu & W.B.Yu, a new species from Gaoligong Mountains in Yunnan Province, southwestern China, is described and illustrated. This new species was found growing in the wet meadow at the top of the mountains near Dulongjiang Township and Cikai Township. Pedicularis wanghongiae is morphologically similar to P. praeruptorum Bonati, but differs from the latter in having an upward bent galea, shorter petioles and only two pubescent filaments. In addition, stems of P. wanghongiae are densely glandular pubescent, and its leaves are abaxially white pubescent along the veins. Furthermore, the pollen grain of P. wanghongiae is bisyncolpate with microfoveolate exine ornamentation. Molecular phylogenetic analyses using four DNA loci (ITS, matK, rbcL and trnL-F) support the delimitation of this new species. Morphologically, this new species should be placed in Pedicularis series Paucifoliatae Prain according to Tsoong’s classification. However, series Paucifoliatae was shown to be paraphyletic based on molecular data. A key to species in series Paucifoliatae is presented, and relationships among these species discussed.

Small mammals of the mid-Araguaia River in central Brazil, with the description of a new species of climbing rat

Zootaxa ◽  
2011 ◽  
Vol 2789 (1) ◽  
pp. 1 ◽  
Author(s):  
RITA G. ROCHA ◽  
EDUARDO FERREIRA ◽  
BARBARA M. A. COSTA ◽  
IRACY C. M. MARTINS ◽  
YURI L. R. LEITE ◽  
...  
Keyword(s):  
New Species ◽  
Small Mammals ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Undescribed Species ◽  
Human Pressure ◽  
Central Brazil ◽  
Araguaia River ◽  
History Of ◽  
A New Species

The mid-Araguaia River basin in central Brazil is considered a priority area for biodiversity conservation, and Parque Estadual do Cantão (PEC) is one of the most important protected areas in this ecotone between Cerrado and Amazonia. This area suffers an intensive human pressure with high rates of deforestation, and still remains poorly studied in terms of biodiversity. From June 2007 to November 2008 we sampled small mammals from both banks of the mid-Araguaia River, in the states of Tocantins and Pará. Data are given about morphological traits, geographic distribution and natural history of 22 species of small non-volant mammals (eight marsupials and 14 rodents) surveyed at PEC and its surroundings. We also present mitochondrial phylogenetic analyses that allow species identification within the genera: Oecomys, Oligoryzomys and Rhipidomys, and delineate an undescribed species of Thrichomys. Based on morphologic and molecular data, we describe a new species of Rhipidomys previously assigned to R. nitela, which is apparently endemic to the AraguaiaTocantins basin in the Cerrado. Additionally, our phylogenetic analyses provide support for the role played by the Araguaia River as an important geographic barrier for two sister species of Rhipidomys.

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