Multigene phylogeny and morphology of Alternaria reveal a novel species and a new record in China

Phytotaxa ◽  
2019 ◽  
Vol 397 (2) ◽  
pp. 169
Author(s):  
YA QUN TAO ◽  
GUO GENG JIA ◽  
SEIN LAI LAI AUNG ◽  
QING LI WU ◽  
HONG XUE LU ◽  
...  

Two Alternaria species, A. carotiincultae and A. glehniae sp. nov. are isolated from necrotic leaf symptoms of Ligusticum chuanxiong Hort. and Glehnia littoralis Fr. Schmidt ex Miq in China, respectively. The two species are determined as distinct species belonging to sect. Radicina of Alternaria based on morphology and a multigene analysis of ITS, EF-1α, RPB2 and ATPase sequences. Alternaria glehniae is illustrated here as a novel species because the conidial size, septa and sporulation patterns are different from its closely related species. A. carotiincultae is also described as a new record in China.

Phytotaxa ◽  
2015 ◽  
Vol 205 (2) ◽  
pp. 90 ◽  
Author(s):  
XIN-LEI FAN ◽  
KEVIN D. HYDE ◽  
JIAN-KUI LIU ◽  
YING-MEI LIANG ◽  
CHENG-MING TIAN

The family Botryosphaeriaceae encompasses important plant-associated pathogens, endophytes and saprobes with a wide geographical and host distribution. Two dark-spored botryosphaeriaceous taxa associated with Rhus typhina dieback and canker disease were collected from Ningxia Province, in northwestern China. Morphology and multigene analysis (ITS, LSU and EF-1α) clearly distinguished this clade as a distinct species in the genus. Phaeobotryon rhois is introduced and illustrated as a new species in this paper. The species is characterized by its globose, unilocular fruiting bodies and small, brown, 1-septate conidia. It can be distinguished from the similar species P. cercidis, P. cupressi, P. mamane and P. quercicola based on host association and conidial size and colour.


Phytotaxa ◽  
2021 ◽  
Vol 528 (2) ◽  
pp. 93-110
Author(s):  
JOSÉ SAID GUTIÉRREZ-ORTEGA ◽  
MIGUEL ANGEL PÉREZ-FARRERA ◽  
JEFFREY CHEMNICK ◽  
TIMOTHY J. GREGORY

The cycad genus Dioon comprises 17 species from Mexico and Honduras, all of them delimited based on their morphological variation and geographic distribution. A recent evaluation of the biological variation among Dioon populations from Oaxaca and Chiapas, Mexico, demonstrated that the concept of the species Dioon merolae actually consists of three lineages that should be recognized as different taxa. One lineage was already described as Dioon oaxacensis, leaving the concept of Dioon merolae comprising two lineages distributed on both sides of the Isthmus of Tehuantepec. However, there are conspicuous morphological differences between these two lineages. Here, we tested whether such a differentiation within the concept of Dioon merolae merits the differentiation of two different taxa. We evaluated the qualitative and morphometric variation among populations belonging to the Dioon merolae lineages, and compared it with the closely related species Dioon oaxacensis. Morphological observations and statistical tests demonstrated that the populations of southeastern Oaxaca, traditionally considered as part of Dioon merolae, represent a distinct species that we described as Dioon salas-moralesae. Identifying the diagnostic characters of this new species helps enable an understanding of the criteria that should be considered to delineate the boundaries between other cycad species.


2020 ◽  
Vol 60 ◽  
pp. e20206028
Author(s):  
Lara Duarte Piau Braga ◽  
Welinton Ribamar Lopes ◽  
José Roberto Pujol-Luz

The puparium of Dactylodeictes brevifacies was described based on fifty-eight specimens reared in laboratory until the emergence of adults. Larvae were collected under the bark of fallen trees in a Cerrado vegetation, Gallery forest; Palm swamp (Vereda) and open grassland (Campo Limpo) in States of Goiás and Tocantins, Brazil (New Record). The puparium was compared with that of Brachyodina lopesi, the most closely related species with a described puparium. Despite this species clearly shared the larval pachygastrinae features it has a remarkable character not know before for this subfamily: the presence of four pairs of ventral setae (V) in the eighth abdominal segment in ventral view, while in other larvae and puparia of this subfamily, there are five pairs of ventral setae. The adult male and female were described and figured.


2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3856-3861 ◽  
Author(s):  
Yong-Cheng Ren ◽  
Yun Wang ◽  
Liang Chen ◽  
Tao Ke ◽  
Feng-Li Hui

Two strains representing Wickerhamiella allomyrinae f.a., sp. nov. were isolated from the gut of Allomyrina dichotoma (Coleoptera: Scarabeidae) collected from the Baotianman National Nature Reserve, Nanyan, Henan Province, China. Sequence analyses of the D1/D2 domains of the LSU rRNA gene revealed that this novel species was located in the Wickerhamiella clade (Saccharomycetes, Saccharomycetales), with three described species of the genus Candida, namely Candida musiphila, Candida spandovensis and Candida sergipensis, as the most closely related species. The novel species differed from these three species by 9.3–9.8 % sequence divergence (35–45 nt substitutions) in the D1/D2 sequences. The species could also be distinguished from the closely related species, C. musiphila, C. spandovensis and C. sergipensis, by growth on vitamin-free medium and at 37 °C. The type strain is Wickerhamiella allomyrinae sp. nov. NYNU 13920T ( = CICC 33031T = CBS 13167T).


1963 ◽  
Vol 41 (6) ◽  
pp. 1069-1077 ◽  
Author(s):  
G. A. Schad

The genus Pseudophysaloptera, recognized as a genus distinct from Physatoptera, is tentatively considered monotypic. The several species previously assigned to the genus Pseudophysaloptera, and the closely related species Physaloptera kotlani, have been reduced to one polytypic species, Pseudophysaloptera formosana, with two subspecies, P. f. formosana and P. f. soricina. The former occurs in Oriental species of Suncus, while the latter occurs in Palaearctic and Ethiopian soricid insectivores. North American specimens, which may represent a distinct species, are tentatively assigned to P. f. soricina. Presently available collections are only sufficient for a tentative identification of the Nearctic form.


Lankesteriana ◽  
2014 ◽  
Vol 14 (2) ◽  
Author(s):  
Stig Dalström

The plant that was first called “Odontoglossum wyattianum” by Gurney Wilson was exhibited at a meeting of the Royal Horticultural Society on January 3, 1928. No official description was ever published and no type specimen was ever designated, or has surfaced, hence making this distinct species a taxonomic ‘ghost’. The taxonomic validation of Odontoglossum wyattianum is made here through the designation of a holotype, together with a diagnosis, a brief taxonomic history and comparison with similar and closely related species.


Zootaxa ◽  
2019 ◽  
Vol 4624 (3) ◽  
pp. 351-364
Author(s):  
MANU MADHAVAN ◽  
P. PURUSHOTHAMAN ◽  
S. AKASH ◽  
S. BHARATHI ◽  
SHEENA JOSE ◽  
...  

The present study reports the new record of Thor hainanensis Xu & Li, 2014, on the basis of material from Agatti Islands in the Lakshadweep, India. This species was recently described from Hainan Island, China. Relationship of this species to two closely related species (T. paschalis and T. amboinensis) is discussed in this manuscript. Similarly, the present study also reports the rediscovery of other species, Lysmata ternatensis De Man, 1902 from the Lakshadweep waters with detailed taxonomic description. The present specimens were found to occur in the intertidal region in small crevices and rocks at a depth of 0.5-2.0 m. Genetic analysis using the mitochondrial COI sequences for both the species reveals close agreement for the morphological identification and showed the significant variation from the closely related species. 


Phytotaxa ◽  
2018 ◽  
Vol 382 (3) ◽  
pp. 255 ◽  
Author(s):  
MOHAMED OWIS BADRY ◽  
JENNIFER A. TATE ◽  
MOHAMED GABR SHEDED

Abutilon grandifolium is reported for the first time for the flora of Egypt. The paper includes a comprehensive description, occurrence, comparison with closely related species, comments on habitat, and an updated identification key to the species of Abutilon in Egypt. In addition, photographs are given for easy identification.


2004 ◽  
Vol 61 (1) ◽  
pp. 31-39
Author(s):  
T. KUROSAWA

Two new species of Euphorbiaceae (sensu stricto), Mallotus bicarpellatus (Acalyphoideae) and Croton nepalensis (Crotonoideae), are described from Nepal. Mallotus bicarpellatus is closely related to M. philippensis but differs in having 1 or 2 pairs of leaf glands distinctly separated from the petiole attachment, pistillate flowers with staminodes and longer pedicels, and fewer locules and stigmas. Croton nepalensis differs from C. tiglium in having leaves with truncate, subcordate or rounded base, smaller, broadly ovoid capsules, and smaller seeds. A table is provided showing how Croton nepalensis differs from other closely related species. Croton himalaicus is here regarded as a synonym of C. tiglium, though it has been treated variously as a distinct species or a synonym of C. tiglium or C. birmanicus by recent authors. Distribution maps and graphs of altitudinal distribution are given for the new species.


Phytotaxa ◽  
2021 ◽  
Vol 514 (2) ◽  
pp. 105-117
Author(s):  
SEUNG-YEOL LEE ◽  
LEONID N. TEN ◽  
BENJAMIN YAW AYIM ◽  
OKOUMA NGUIA FULBERT ◽  
KALLOL DAS ◽  
...  

A fungal strain designated KNU16-007, belonging to the family Botryosphaeriaceae, was isolated from soil in Daegu, Korea. Phylogenetic analyses based on the concatenated nucleotide sequences of the ITS and TEF-1α regions, showed that the isolate resides in a clade together with Diplodia species but occupies a distinct phylogenetic position. Conidial dimensions of strain KNU16-007 (22.7–29.3 μm × 8.9–10.9 μm) or its conidial length:width ratio were significantly differed from those of the closely related D. sapinea, D. intermedia, D. scrobiculata, D. seriata, D. crataegicola, D. rosacearum, and D. citricarpa clearly indicating morphological differences from these species. Detailed descriptions, illustrations, and discussions regarding the morphological and phylogenetic analyses of the closely related species are provided to support the novelty of the isolated species. The results of phylogenetic analysis and morphological observations indicate that strain KNU16-007 represents a novel species in the genus Diplodia, for which the name Diplodia parva sp. nov. is proposed.


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