Systematics of big-eyed bats, genus Chiroderma Peters, 1860 (Chiroptera: Phyllostomidae)

Zootaxa ◽  
2020 ◽  
Vol 4846 (1) ◽  
pp. 1-93
Author(s):  
GUILHERME S. T. GARBINO ◽  
BURTON K. LIM ◽  
VALÉRIA DA C. TAVARES

We present a revision of the Neotropical bat genus Chiroderma, commonly known as big-eyed bats. Although species of Chiroderma have a wide distribution from western México to southern Brazil, species limits within Chiroderma are not clearly defined, as attested by identification errors in the literature, and there is no comprehensive revision of the genus that includes morphological and molecular data. Our review is based on phylogenetic analyses of two mitochondrial (COI and CYTB) and two nuclear (RAG2 and DBY) genes, coalescence analyses of mitochondrial genes, and morphological analyses including type specimens of all named taxa. We recognize seven species in three clades: the first clade includes (1) C. scopaeum Handley, 1966, endemic to western México and previously considered a subspecies of C. salvini; and (2) C. salvini Dobson, 1878, a taxon associated with montane forests, distributed from México to Bolivia; the second clade includes (3) C. improvisum Baker and Genoways, 1976, endemic to the Lesser Antilles, and (4) C. villosum Peters, 1860, widely distributed on the continental mainland and polytypic, with subspecies C. v. villosum and C. v. jesupi; and the third clade includes (5) the polytypic C. doriae Thomas, 1891, with C. d. doriae distributed in eastern Brazil and Paraguay, and C. d. vizottoi, occurring in northeastern Brazil; (6) C. trinitatum Goodwin, 1958, distributed from Trinidad to Amazonia; and (7) C. gorgasi Handley, 1960, distributed from Honduras to trans-Andean South America, previously considered a subspecies of C. trinitatum. 

Phytotaxa ◽  
2021 ◽  
Vol 496 (1) ◽  
pp. 1-53
Author(s):  
GOIA DE MATTOS LYRA ◽  
JOSÉ MARCOS DE CASTRO NUNES ◽  
EDILENE MARIA DOS SANTOS PESTANA ◽  
JOÃO CARLOS GAMA DE MATOS ◽  
TAIARA AGUIAR CAIRES ◽  
...  

The Gracilariaceae comprises 242 mainly tropical species, including some with significant economic value for the food and pharmaceutical industry. Accurate taxonomy is crucial for the selection of species for cultivation. However, species identification is still challenging taxonomists. Nineteen species of Gracilariaceae have so far been referred to the Brazilian coast. We describe this diversity across approximately 32 degrees of latitude, using mitochondrial (COI-5P) and plastid (UPA and rbcL) markers in species delimitation analyses (ABGD and SPN). We provide phylogenetic (based on a concatenated three-genes tree and a taxa rich rbcL tree) and barcoding analyses from a broad and partially original collection combined with morphoanatomical data, including information resulting from analyses of type specimens and topotype material. We identified twenty-five specific entities occurring on the Brazilian coast, including four new species yet to be described. Spermatangial arrangements and aspects of thallus morphology were the most useful characters for species and genera delimitation, while characters based on the anatomy of the cystocarp overlap. Our morphological analyses demonstrate the lack of exclusive characters that justify the recently proposed Gracilariaceae infrafamilial categories, and therefore we use in this work the Gracilaria sensu lato genus concept. We provide descriptions, illustrations and a dichotomous key for the identification of species occurring in Brazil.


2020 ◽  
Vol 89 (2) ◽  
pp. 188-209
Author(s):  
Yutaro Oku ◽  
Kenji Iwao ◽  
Bert W. Hoeksema ◽  
Naoko Dewa ◽  
Hiroyuki Tachikawa ◽  
...  

Recent molecular phylogenetic analyses of scleractinian corals have resulted in the discovery of cryptic lineages. To understand species diversity in corals, these lineages need to be taxonomically defined. In the present study, we report the discovery of a distinct lineage obscured by the traditional morphological variation of Fungia fungites. This taxon exists as two distinct morphs: attached and unattached. Molecular phylogenetic analyses using mitochondrial COI and nuclear ITS markers as well as morphological comparisons were performed to clarify their phylogenetic relationships and taxonomic positions. Molecular data revealed that F. fungites consists of two genetically distinct clades (A and B). Clade A is sister to a lineage including Danafungia scruposa and Halomitra pileus, while clade B formed an independent lineage genetically distant from these three species. The two morphs were also found to be included in both clades, although the attached morph was predominantly found in clade A. Morphologically, both clades were statistically different in density of septal dentation, septal number, and septal teeth shape. These results indicate that F. fungites as presently recognized is actually a species complex including at least two species. After checking type specimens, we conclude that specimens in clade A represent true F. fungites with two morphs (unattached and attached) and that all of those in clade B represent an unknown species and genus comprising an unattached morph with only one exception. These findings suggest that more unrecognized taxa with hitherto unnoticed morphological differences can be present among scleractinian corals.


Life ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 420
Author(s):  
María Eugenia Salgado Salomón ◽  
Carolina Barroetaveña ◽  
Tuula Niskanen ◽  
Kare Liimatainen ◽  
Matthew E. Smith ◽  
...  

This paper is a contribution to the current knowledge of taxonomy, ecology and distribution of South American Cortinarius (Pers.) Gray. Cortinarius is among the most widely distributed and species-rich basidiomycete genera occurring with South American Nothofagaceae and species are found in many distinct habitats, including shrublands and forests. Due to their ectomycorrhizal role, Cortinarius species are critical for nutrient cycling in forests, especially at higher latitudes. Some species have also been reported as edible fungi with high nutritional quality. Our aim is to unravel the taxonomy of selected Cortinarius belonging to phlegmacioid and myxotelamonioid species based on morphological and molecular data. After widely sampling Cortinarius specimens in Patagonian Nothofagaceae forests and comparing them to reference collections (including holotypes), we propose five new species of Cortinarius in this work. Phylogenetic analyses of concatenated rDNA ITS-LSU and RPB1 sequences failed to place these new species into known Cortinarius sections or lineages. These findings highlight our knowledge gaps regarding the fungal diversity of South American Nothofagaceae forests. Due to the high diversity of endemic Patagonian taxa, it is clear that the South American Cortinarius diversity needs to be discovered and described in order to understand the evolutionary history of Cortinarius on a global scale.


Parasite ◽  
2018 ◽  
Vol 25 ◽  
pp. 4 ◽  
Author(s):  
Dagmar Jirsová ◽  
Xuejuan Ding ◽  
Kristína Civáňová ◽  
Eliška Jirounková ◽  
Jana Ilgová ◽  
...  

Paradiplozoon hemiculteri (Ling, 1973), a member of the Diplozoidae, parasitizes the gills of Asian fish. Not only is the type material unavailable for this species, the original description was poor and somewhat conflicting, and adequate molecular data were not available. What is more, the available morphological and molecular data are inconsistent and fluctuate significantly. Here, we present a redescription of P. hemiculteri based on morphological and molecular data from new isolates collected from the type host, the sharpbelly Hemiculter leucisculus (Basilewsky, 1855), captured at the neotype locality (Shaoguan, Guangdong Province, southern China); a neotype for P. hemiculteri was designated from this collection. The length and width of the body, buccal suckers, pharynx, attachment clamps, sickle and the central hook handle were all measured and the shape of the anterior and posterior part of the median plate and anterior and posterior joining sclerites accurately documented. Phylogenetic analyses based on the sequences of the second rDNA internal transcribed spacer (ITS2) indicated that all new samples clustered together and differed clearly from sequences attributed to P. hemiculteri, which are deposited in GenBank. Our results confirm that P. hemiculteri is the only diplozoid that has demonstrably been found on the gills of H. leucisculus to date.


2021 ◽  
pp. 269-278
Author(s):  
M. Lenguas Francavilla ◽  
L. Negrete ◽  
A. Martínez-Aquino ◽  
C. Damborenea ◽  
F. Brusa

Girardia Ball, 1974 is the most diverse and widely distributed genus of the family Dugesiidae (Platyhelminthes: Continenticola) in the Neotropical region. Seven out of the 52 species of the genus are known for Argentina. The Somuncurá Plateau is a region in northern Patagonia with several endemic flora and fauna, but little is known about the free-living Platyhelminthes. We describe two new species of Girardia partially inhabiting in sympatry in the Somuncurá Plateau: Girardia somuncura sp. nov. and Girardia tomasi sp. nov. The identification criteria that we followed was an integrative taxonomic approach based on morphological and molecular data. Thus, we used anatomical features focused on the reproductive system, together with a phylogenetic analysis, using a mitochondrial (COI barcode region) genetic marker. This study is the first phylogenetic analysis of the genus Girardia in which we include the southernmost representatives of America here described, thus making it possible to incorporate them in global phylogenies.


Zootaxa ◽  
2021 ◽  
Vol 4995 (2) ◽  
pp. 334-344
Author(s):  
QIAN ZHOU ◽  
FAHUI TANG ◽  
YUANJUN ZHAO

During a survey of parasitic ciliates in Chongqing, China, Trichodina matsu Basson & Van As, 1994 was isolated from gills of Tachysurus fulvidraco. Furthermore, the 18S rRNA gene and ITS-5.8S rRNA region of T. matsu were sequenced for the first time and applied for the species identification and comparison with similar species in the present study. Based on the morphological and molecular comparisons, the results indicate that T. matsu is an ectoparasite specific for the Siluriformes catfish. Based on the analyses of genetic distance, multiple sequence alignments, and phylogenetic analyses, no obvious differentiation within populations of T. matsu was found. In addition, the ‘Trichodina hyperparasitis’ (KX904933) in GenBank is a misidentification and appears to be conspecific with T. matsu according to the comparison of morphological and molecular data.  


Phytotaxa ◽  
2015 ◽  
Vol 239 (1) ◽  
pp. 17
Author(s):  
Larissa Bernardino Moro ◽  
Gregorio Delgado ◽  
Iracema Helena SCHOENLEIN-CRUSIUS

Clathrosporium retortum sp. nov., collected on submerged mixed leaf litter samples at Ilha do Cardoso State Park, São Paulo state, Brazil, is described based on morphological and molecular data. The fungus is characterized by forming whitish, dense, subglobose to irregular propagules, hyaline to subhyaline when young, subhyaline to dark brown at maturity, that are formed by densely interwoven conidial filaments with each conidial cell repeatedly branching bilaterally or occasionally unilaterally. Phylogenetic analyses using partial LSU nrDNA sequence data suggest that C. retortum belongs in the Sordariomycetes (Ascomycota) where it forms a well-supported clade with Clohesia corticola in the Sordariomycetidae, but its ordinal or familial placement remains unresolved. Its phylogenetic placement confirms the polyphyletic nature of aeroaquatic fungi like Clathrosporium, as it was distantly related to one available sequence in GenBank named as C. intricatum, the type species, which is phylogenetically related to the Helotiales (Leotiomycetes). However, due to lack of authenticity of the identity of this sequence with the type specimen of C. intricatum, a broad concept of Clathrosporium is tentatively adopted here to accommodate the present fungus instead of introducing a new genus. Beverwykella clathrata, Helicoön septatissimum and Peyronelina glomerulata are recorded for the first time from Brazil. Cancellidium applanatum and Candelabrum brocchiatum are new records for the state of São Paulo.


2021 ◽  
Author(s):  
Renato Lúcio Mendes Alvarenga ◽  
Tatiana Baptista Gibertoni

Abstract Dacrymycetes has four families and 13 genera, few of them with molecular data available and then usually polyphyletic in phylogenetic analyses. Dacrymyces Nees is one of the polyphyletic genera in Dacrymycetes and it was introduced to accommodate one species, D. stillatus Nees. The morphological features of the genus are a homogeneous composition of the intra-structure and an amphigenous or superior hymenium. In this study, we included Neotropical specimens in the phylogeny of the Dacrymycetes and Dacrymyces s.s. is emended to include species with resupinate basidiomata, unilateral hymenium and heterogeneous context. In this new delimitation, the new species Dacrymyces flavobrunneus is described using morphological and molecular data and three new combinations (D. ceraceus comb. nov., D. maxidorii comb. nov. and D. spathularia comb. nov.) are proposed based on DNA analyses.


Phytotaxa ◽  
2021 ◽  
Vol 484 (3) ◽  
pp. 291-297
Author(s):  
XINYU XU ◽  
CHANG-CHUN DING ◽  
WENQI HU ◽  
XIA YU ◽  
YU ZHENG ◽  
...  

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.


2021 ◽  
Vol 46 (1) ◽  
pp. 211-217
Author(s):  
Denise Monte Braz ◽  
Thomas F. Daniel ◽  
Carrie Kiel ◽  
Anna Gao ◽  
Sagrika Jawadi ◽  
...  

Abstract—A species previously treated in Staurogyne (S. nitida) is elevated to the category of a new genus of Acanthaceae, subfamily Nelsonioideae, based on morphological and molecular data. The sole species, Aymoreana nitida, occurs in the Atlantic Forest of eastern Brazil, from southern Bahia to northern Espírito Santo. Aymoreana differs from other genera of Nelsonioideae by the combination of the calyx with subequal segments, the slightly zygomorphic corolla, the four didynamous stamens, and the asymmetric gynoecium. Morphological information is accompanied by a molecular phylogenetic tree, ecological data, a preliminary conservation assessment, and illustrations.


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