scholarly journals Three Colletotrichum Species, Including a New Species, are Associated to Leaf Anthracnose of Rubber Tree in Hainan, China

Plant Disease ◽  
2019 ◽  
Vol 103 (1) ◽  
pp. 117-124 ◽  
Author(s):  
Xueren Cao ◽  
Xiangming Xu ◽  
Haiyan Che ◽  
Jonathan S. West ◽  
Daquan Luo
Keyword(s):  
New Species ◽  
Species Complex ◽  
Phylogenetic Analyses ◽  
Rubber Tree ◽  
The Other ◽  
Effective Control ◽  
Anthracnose Disease ◽  
Colletotrichum Species ◽  
Species Complexes ◽  
A New Species

Colletotrichum gloeosporioides and C. acutatum have been reported to be causal agents of anthracnose disease of rubber tree. Recent investigations have shown that both C. gloeosporioides and C. acutatum are species complexes. The identities of Colletotrichum species causing anthracnose disease of rubber tree in Hainan, China, are unknown. In this study, 106 isolates obtained from rubber tree with symptoms of anthracnose were collected from 12 counties of Hainan and identified at the species complex level based on the ITS sequences and colony morphologies. Seventy-four isolates were identified as C. gloeosporioides species complex and the other 32 isolates as C. acutatum species complex. Forty-two isolates were selected for further multilocus phylogenetic analyses in order to identify the isolates to the species level. Twenty-six isolates from the C. gloeosporioides species complex were characterized for partial sequences of seven gene regions (ACT, TUB2, CHS-1, GAPDH, ITS, ApMat, and GS), and the other 16 isolates from the C. acutatum species complex for five gene regions (ACT, TUB2, CHS-1, GAPDH, and ITS). Three species were identified: C. siamense and C. fructicola from the C. gloeosporioides species complex, and a new species C. wanningense from the C. acutatum species complex. Artificial inoculation of rubber tree leaves confirmed the pathogenicity of the three species. The present study improves the understanding of species causing anthracnose on rubber tree and provides useful information for the effective control of the disease.

scholarly journals An elusive new species of gymnophthalmid lizard (Cercosaurinae, Selvasaura) from the Andes of northern Peru

2021 ◽  
Vol 5 (2) ◽  
pp. 177-187
Author(s):  
Lourdes Y. Echevarría ◽  
Pablo J. Venegas ◽  
Luis A. García-Ayachi ◽  
Pedro M. Sales Nunes
Keyword(s):  
New Species ◽  
Natural History ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
The Other ◽  
Adult Males ◽  
The Andes ◽  
New States ◽  
Northern Peru ◽  
A New Species

We describe a new species of Selvasaura from the montane forests of the eastern slopes of the Andes in northern Peru, based on external and hemipenial morphological characters and previous phylogenetic analyses. The new species can be differentiated from the other two Selvasaura species in having keeled dorsal scales usually flanked by longitudinal striations, in adults and juveniles; adult males with a yellow vertebral stripe bordered by broad dark brown stripes on each side and a unilobed hemipenis surrounded by the branches of the sulcus spermaticus. The description of the new species contributes information about new states of diagnostic characters of Selvasaura and natural history.

Four new species of Phrynus, Lamarck (Arachnida: Amblypygi) from Mexico

Zootaxa ◽  
2021 ◽  
Vol 4948 (2) ◽  
pp. 151-183
Author(s):  
DANIEL CHIRIVI JOYA
Keyword(s):  
New Species ◽  
Species Complex ◽  
Population Studies ◽  
The Other ◽  
Genetic Population ◽  
Male And Female ◽  
Taxonomic Information ◽  
Species Complexes ◽  
Morphologic Variation ◽  
Mexican Species

Mexico is the country with the largest diversity of the genus Phrynus (Amblypygi: Phrynidae); however, many species could remain hidden due to the conservative morphology of the group. Two of the Mexican species, P. operculatus, and P. jalisco show enough variation, between populations from different localities, to be considered as possible species complexes. The scarce taxonomic information of these species and the few analyses of their variation could cause misidentifications and sub estimation of the diversity. Specimens morphologically similar to P. operculatus from different Mexican localities were analyzed, using characters from the male and female genitals. Four new species are described, presenting illustrations of SEM for the male genitals. Details of the morphologic variation in this group of species are discussed, as well as the usefulness of sexual characters like the size proportions, and sclerotization in the female gonopods, and ornaments in males, to improve the diagnoses of the Mexican Phrynus. The known distribution of P. operculatus is large in comparison with those of the other species, after the result of this research, the possibility that it is a larger species complex is evident, thus, it is necessary to increase the morphologic and genetic population studies in this group. 

scholarly journals A revision of the Pyura stolonifera species complex (Tunicata, Ascidiacea), with a description of a new species from Australia

Zootaxa ◽  
2011 ◽  
Vol 2754 (1) ◽  
pp. 27 ◽  
Author(s):  
MARC RIUS ◽  
PETER R. TESKE
Keyword(s):  
New Species ◽  
Species Complex ◽  
Taxonomic Status ◽  
Single Species ◽  
Distinct Species ◽  
The Other ◽  
Solitary Ascidian ◽  
Different Populations ◽  
A New Species ◽  
Dorsal Tubercle

Pyura stolonifera is a large solitary ascidian found in Africa, Australasia and South America. The taxonomic status of different populations of this species is disputed, especially since there is evidence for several distinct morphological and genetic units that point towards the existence of multiple cryptic species. While some researchers still recognize P. stolonifera as a single species, others treat the different populations as distinct species. Here, we present a revision of the P. stolonifera species complex based on the examination of samples from all regions where there are reliable reports of this taxon. We recognize four species that are both morphologically and genetically distinct, one of which is new to science and is formally described here. This species is morphologically distinct from the other three members of the species complex in terms of the colour and texture of the tunic, the arrangement of the gonads within the gut and the shape of the dorsal tubercle, among other characters. We name the new species Pyura dalbyi after Dr. J.E. Dalby Jr., whose research on its ecology and distribution provided the incentive for examining this species more closely.

Afroboletus sequestratus (Boletales), the first species with sequestrate basidioma in the genus

Phytotaxa ◽  
2017 ◽  
Vol 305 (1) ◽  
pp. 11 ◽  
Author(s):  
LI-HONG HAN ◽  
BART BUYCK ◽  
NOUROU S. YOROU ◽  
ROY E. HALLING ◽  
ZHU L. YANG
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
The Other ◽  
Morphological Description ◽  
Sem Images ◽  
Morphological Comparison ◽  
Line Drawings ◽  
Molecular Phylogenetic ◽  
A New Species

A new species of Afroboletus, namely A. sequestratus, is described from Zambia. Evidence from molecular phylogenetic analyses using sequences rpb1, rpb2 and tef1α and morphological comparison support its placement in Afroboletus and it is distinct from the other related members of this genus in Africa. It is the first species with sequestrate basidiomata in the genus. A morphological description is augmented with line drawings and SEM images for the species.

Description of Tottonophyes enigmatica gen. nov., sp. nov. (Hydrozoa, Siphonophora, Calycophorae), with a reappraisal of the function and homology of nectophoral canals

Zootaxa ◽  
2018 ◽  
Vol 4415 (3) ◽  
pp. 452 ◽  
Author(s):  
P. R. PUGH ◽  
C.W. DUNN ◽  
S.H.D. HADDOCK
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Sister Group ◽  
The Other ◽  
Phylogenetic Position ◽  
Unique Combination ◽  
New Family ◽  
Molecular Phylogenetic ◽  
Distinct Morphology ◽  
A New Species

A new species of calycophoran siphonophore, Tottonophyes enigmatica gen. nov, sp. nov., is described. It has a unique combination of traits, some shared with prayomorphs (including two rounded nectophores) and some with clausophyid diphyomorphs (the nectophores are dissimilar, with one slightly larger and slightly to the anterior of the other, and both possess a somatocyst). Molecular phylogenetic analyses indicate that the new species is the sister group to all other diphyomorphs. A new family, Tottonophyidae, is established for it. Its phylogenetic position and distinct morphology help clarify diphyomorph evolution. The function and homology of the nectophoral canals and somatocyst is also re-examined and further clarification is given to their nomenclature.

Species diversity of Fergusonina Malloch gall flies (Diptera: Fergusoninidae) forming leaf bud galls on snow gum (Eucalyptus pauciflora Sieb. ex Spreng. complex), with a description of a new species from Tasmania

2012 ◽  
Vol 43 (2) ◽  
pp. 147-160 ◽  
Author(s):  
Leigh A. Nelson ◽  
Sonja J. Scheffer ◽  
David K. Yeates
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Molecular Phylogeny ◽  
Species Complex ◽  
The Other ◽  
Adult Size ◽  
Dorsal Shield ◽  
Interspecific Distance ◽  
A New Species ◽  
Host Complex

A new species ofFergusonina(Diptera: Fergusoninidae) fly is described from terminal leaf bud galls (TLBGs) from theEucalyptus paucifloraSieb. ex Spreng. (snow gum) species complex from Australia.Fergusonina tasmaniensisNelson sp.n. is the first species from the genusFergusoninato be described from Tasmania and the fourth from this host complex.Fergusonina tasmaniensissp.n. can be distinguished from the other snow gumFergusoninaspecies by differences in adult size, markings on the mesonotum and the male genitalia, and from all other describedFergusoninaby host specificity and differences in adult colouration, setation, genitalia and the morphology of the larval dorsal shield. In a molecular phylogeny of the snow gum-inhabitingFergusoninaspecies,F. tasmaniensissp.n. was resolved as monophyletic, and sister (mean distance = 3.82%) to a clade comprisingF. daviesaeNelson and Yeates andF. omlandiNelson and Yeates (mean interspecific distance = 2.48%).

scholarly journals Morphological and molecular phylogenetic analyses reveal three species of Colletotrichum in Shandong province, China

MycoKeys ◽  
2021 ◽  
Vol 85 ◽  
pp. 57-71
Author(s):  
Taichang Mu ◽  
Zhaoxue Zhang ◽  
Rongyu Liu ◽  
Shubin Liu ◽  
Zhuang Li ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Host Range ◽  
Species Complex ◽  
Plant Pathogens ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Shandong Province ◽  
Molecular Phylogenetic ◽  
A New Species

Colletotrichum has numerous host range and distribution. Its species are important plant pathogens, endophytes and saprobes. Colletotrichum can cause regular or irregular depressions and necrotic lesions in the epidermal tissues of plants. During this research Colletotrichum specimens were collected from Mengyin County, Shandong Province, China. A multi-locus phylogenetic analysis of ITS, GAPDH, CHS-1, ACT, TUB2, CAL and GS sequence data combined with morphology, revealed a new species and two known species, viz. C. mengyinense sp. nov., C. gloeosporioides and C. pandanicola, belonging to the C. gloeosporioides species complex. The new species is described and illustrated in this paper and compared with taxa in the C. gloeosporioides species complex.

A new species of the Spinomantis bertini species complex (Anura: Mantellidae) from Pic d’Ivohibe Special Reserve (Madagascar)

Zootaxa ◽  
2019 ◽  
Vol 4656 (1) ◽  
pp. 133-142 ◽  
Author(s):  
JOANA SABINO-PINTO ◽  
ANDOLALAO RAKOTOARISON ◽  
MOLLY C. BLETZ ◽  
DEVIN EDMONDS ◽  
FRANK GLAW ◽  
...  
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
Species Complex ◽  
Nuclear Dna ◽  
The Other ◽  
Rrna Gene ◽  
Frog Species ◽  
Mitochondrial 16S Rrna Gene ◽  
Morphological Differences ◽  
A New Species

We describe a new frog species of the Spinomantis bertini species complex based on congruent genetic evidence from mitochondrial and nuclear DNA sequences as well as minor morphological differences. A molecular phylogeny derived from the mitochondrial 16S rRNA gene revealed that Spinomantis mirus sp. nov. is sister to a clade containing the other two described species of the species complex, S. bertini and S. beckei, but strongly differentiated from these two species by 8.1–9.8% pairwise distances in this gene. DNA sequences from two nuclear genes revealed that S. mirus sp. nov. shares no alleles with these two species. Phenotypically, S. mirus sp. nov. differs from the other species of the complex by its larger size and some aspects of its coloration, including clear mottling on the flanks, tri-color banding on the legs, and distinct brown dots on the dorsum. The new species is so far only known from Pic d’Ivohibe Special Reserve. Its distribution thus appears to not overlap with those of the other two species, which as far as known are restricted to the Andohahela Massif in the extreme South-East of Madagascar, at a distance of about 250 km from Ivohibe. 

A new species of Colletotrichum from Sonchus sp. in Italy

Phytotaxa ◽  
2017 ◽  
Vol 314 (1) ◽  
pp. 55 ◽  
Author(s):  
RUVISHIKA S. JAYAWARDENA ◽  
ERIO CAMPORESI ◽  
ABDALLAH M. ELGORBAN ◽  
ALI H. BAHKALI ◽  
JIYE YAN ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Species Complex ◽  
Sequence Data ◽  
Distinct Species ◽  
First Record ◽  
Molecular Data ◽  
Colletotrichum Species ◽  
Morphological And Molecular Data ◽  
A New Species

Colletotrichum sonchicola, sp. nov. from Sonchus sp. (dandelion tribe) in Forlì-Cesena Province, Italy, is introduced using morphological and molecular data. Combined phylogenetic analysis of ITS, GAPDH, CHS, ACT and TUB2 sequence data demonstrate that C. sonchicola is a distinct species within the dematium species complex. The new species is illustrated and compared with related taxa. This provides the first record of a Colletotrichum species from the genus Sonchus.

scholarly journals New psychropotid species (Echinodermata Holothuroidea Elasipodida) of the Western Pacific with phylogenetic analyses

2021 ◽  
Author(s):  
Chuan Yu ◽  
Dongsheng Zhang ◽  
Ruiyan Zhang ◽  
Chunsheng Wang
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Deep Sea ◽  
Phylogenetic Analyses ◽  
The Other ◽  
Western Pacific ◽  
Morphological Examination ◽  
The Family ◽  
The Western Pacific ◽  
A New Species

Holothurians of the family Psychropotidae are widely distributed, but remain least studied deep-sea holothurians. On an expedition in the Western Pacific, six psychropotid specimens were collected by the Jiaolong human operated vehicle (HOV). Through morphological examination, four of them were identified as a new species, Benthodytes jiaolongi sp. nov., which was characterized as having minute papillae, narrow brims, and terminal anus; the ossicles were either rods or primary crosses. The remaining two specimens were identified as Psychropotes verrucicaudatus Xiao, Gong, Kou & Li, 2019, which was first recorded at the Kyushu-Palau Ridge. The phylogenetic analysis confirmed the classification status of B. jiaolongi and P. verrucicaudatus, and indicated a paraphyletic relationship within the genus Benthodytes. The new species clustered with Benthodytes sanguinolenta and was separated from the clade containing the other Benthodytes species.

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