Pollen morphology of Ellisiophyllum and Sibthorpia (Plantaginaceae, tribe Sibthorpieae) and phylogenetics of the tribe

AbstractPollen morphology of six species belonging to genera Ellisiophyllum and Sibthorpia (Plantaginaceae tribe Sibthorpieae) was studied using light and scanning electron microscopy. The data were analyzed in the light of the first phylogenetic analysis including all but one species of the tribe using DNA sequence data from nuclear ribosomal (ITS) and plastid trnL-F region. Pollen grains in representatives of this tribe are 3-colpate, occasionally 3-porate, suboblate to prolate; mainly medium-sized, rarely small. One major pollen type (3-colpate) is recognized in the tribe. Within this pollen type, six subtypes are distinguished based on their exine sculpture, pollen grain size, length of the apertures, and exine thickness. The obtained results confirm that pollen characters are useful for species identification. Palynomorphological data are consistent with the results of the molecular phylogenetic analyses. All studies support a sister relationship of the widespread European Sibthorpia europaea with the widespread South American Sibthorpia repens and a sister relationship of two insular species, the Balearic Sibthorpia africana and the Madeiran Sibthorpia peregrina. Pollen grains in the tribe Sibthorpieae have both reticulate exine sculpture characteristic for representatives of the Russelieae–Cheloneae–Antirrhineae clades of Plantaginaceae, and also nanoechinate sculpture, which is typical for the Veroniceae and Plantagineae clades of that family. Also, in Sibthorpia repens, we observe a possible transition from the colpate type to the porate type typical for taxa of Plantago and Littorella.

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Noteworthy record of the Ethiopian genet, Genetta abyssinica, (Carnivora, Viverridae) from Djibouti informs its phylogenetic position within Genetta

Mammalia ◽

10.1515/mammalia-2017-0081 ◽

2019 ◽

Vol 83 (2) ◽

pp. 180-189 ◽

Cited By ~ 2

Author(s):

Adam W. Ferguson ◽

Houssein R. Roble ◽

Molly M. McDonough

Keyword(s):

Phylogenetic Relationships ◽

Sequence Data ◽

Alternative Hypothesis ◽

Phylogenetic Analyses ◽

Phylogenetic Position ◽

Sister Relationship ◽

Molecular Sequence Data ◽

Molecular Sequence ◽

Molecular Phylogenetic ◽

Relationship Of

AbstractThe molecular phylogeny of extant genets (Carnivora, Viverridae,Genetta) was generated using all species with the exception of the Ethiopian genetGenetta abyssinica. Herein, we provide the first molecular phylogenetic assessment ofG. abyssinicausing molecular sequence data from multiple mitochondrial genes generated from a recent record of this species from the Forêt du Day (the Day Forest) in Djibouti. This record represents the first verified museum specimen ofG. abyssinicacollected in over 60 years and the first specimen with a specific locality for the country of Djibouti. Multiple phylogenetic analyses revealed conflicting results as to the exact relationship ofG. abyssinicato otherGenettaspecies, providing statistical support for a sister relationship to all other extant genets for only a subset of mitochondrial analyses. Despite the inclusion of this species for the first time, phylogenetic relationships amongGenettaspecies remain unclear, with limited nodal support for many species. In addition to providing an alternative hypothesis of the phylogenetic relationships among extant genets, this recent record provides the first complete skeleton of this species to our knowledge and helps to shed light on the distribution and habitat use of this understudied African small carnivore.

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Molecular phylogenetics of the Onobrychis genus (Fabaceae: Papilionoideae) using ITS and trnL–trnF DNA sequence data

Australian Journal of Botany ◽

10.1071/bt13279 ◽

2014 ◽

Vol 62 (3) ◽

pp. 235 ◽

Cited By ~ 2

Author(s):

S. Safaei Chaei Kar ◽

F. Ghanavati ◽

M. R. Naghavi ◽

H. Amirabadi-zade ◽

R. Rabiee

Keyword(s):

Dna Sequence ◽

Molecular Phylogenetics ◽

Sequence Data ◽

Phylogenetic Analyses ◽

Dna Sequence Data ◽

Group I ◽

Molecular Phylogenetic ◽

Nuclear Its ◽

Cultivated Species ◽

Relationship Of

Onobrychis, comprising more than 130 species, is a genus of the family Fabaceae. At this time, the interspecies relationship of this biologically important genus is still a subject of great discussion and debate. To help resolve this disagreement, we used molecular phylogeny to analyse internal transcribed spacer (ITS) and trnL–trnF sequences of 76 species of Onobrychis. Bayesian interference, maximum parsimony and maximum likelihood analyses of nuclear ITS and plastid trnL–trnF DNA sequence data generated trees with strong posterior probability for two groups: Onobrychis subgen. Sisyrosema (including: Heliobrychis, Hymenobrychis, Afghanicae and Anthyllium sections) along with Laxiflorae section in Group I and Onobrychis subgen. Onobrychis (except Laxiflorae section) in the other (Group II). The Laxiflorae section roots back to the ancestral node for Sisyrosema subgen. O. viciifolia (cultivated species), which is closely associated with O. cyri var. cyri, suggesting that the latter may be a wild progenitor of O. viciifolia. The present study supported the paraphyly of subgenera Onobrychis and Sisyrosema. The study proposed the paraphyletic nature of the sections Onobrychis, Dendrobrychis, Heliobrychis and Hymenobrychis. Together with our molecular phylogenetic analyses we present a review of Onobrychis morphology and discuss and compare our results with those of earlier morphological and molecular phylogenetic analyses.

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Multigene phylogenetic analyses including diverse radiolarian species support the “Retaria” hypothesis — The sister relationship of Radiolaria and Foraminifera

Marine Micropaleontology ◽

10.1016/j.marmicro.2011.06.007 ◽

2011 ◽

Vol 81 (1-2) ◽

pp. 32-42 ◽

Cited By ~ 18

Author(s):

Yoshiyuki Ishitani ◽

Sohta A. Ishikawa ◽

Yuji Inagaki ◽

Masashi Tsuchiya ◽

Kozo Takahashi ◽

...

Keyword(s):

Phylogenetic Analyses ◽

Sister Relationship ◽

Relationship Of

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A description of the second species of the genus Bleptus Eaton, 1885 (Ephemeroptera: Heptageniidae) from Japan, and phylogenetic relationships of two Bleptus mayflies inferred from mitochondrial and nuclear gene sequences

Zootaxa ◽

10.11646/zootaxa.4974.2.5 ◽

2021 ◽

Vol 4974 (2) ◽

pp. 333-360

Author(s):

KOJI TOJO ◽

KEN MIYAIRI ◽

YUTO KATO ◽

AYANA SAKANO ◽

TOMOYA SUZUKI

Keyword(s):

Phylogenetic Analyses ◽

Ribosomal Subunit ◽

Nuclear Gene ◽

Taxonomic Status ◽

16S Rrna Genes ◽

Rrna Genes ◽

Gene Sequences ◽

Molecular Phylogenetic ◽

Black Band ◽

Relationship Of

A new mayfly species, Bleptus michinokuensis sp. nov. (Ephemeroptera: Heptageniidae) is described on the basis of specimens of male and female adults and mature nymphs collected at a seepage zone of a small freshwater branch of the ‘Tachiya-zawa-gawa’ River located amongst the northern foothills of Mt. Gassan (Shonai-machi Town, Yamagata Prefecture, Japan). This new Bleptus species is characterized by its clear fore and hind wings. That is, they neither exhibit the distinct black band on the fore wings, nor the characteristic darkened margins along the edges of both the fore and hind wings. Rather it has a blackish colored terminal half of its fore legs (i.e., tibial, tarsal and pretarsal segments). These features differ clearly when comparing them to the other known species, Bleptus fasciatus Eaton. The information and data describing the habitat and distribution range of this new species are also noted. We also examined and discussed the genetic relationship of two Bleptus mayflies to settle the taxonomic status, inferred from the partially sequenced cytochrome c oxidase subunit I (COI) and large mitochondrial ribosomal subunit (16S rRNA) genes, and also the nuclear internal transcribed spacer 2 (ITS2) gene sequences. Consequently, phenetic and molecular phylogenetic analyses agreed well in terms of clustering.

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Molecular Systematics of Tribe Physarieae (Brassicaceae) Based on Nuclear ITS, LUMINIDEPENDENS, and Chloroplast ndhF

Systematic Botany ◽

10.1600/036364421x16312067913318 ◽

2021 ◽

Author(s):

Sara Fuentes-Soriano ◽

Elizabeth A. Kellogg

Keyword(s):

Sequence Data ◽

Plastid Dna ◽

Sister Relationship ◽

Data Set ◽

Woody Perennial ◽

History Of ◽

Nuclear Its ◽

Phylogenetic Framework ◽

Phylogenetic Hypotheses ◽

Relationship Of

Physarieae is a small tribe of herbaceous annual and woody perennial mustards that are mostly endemic to North America, with its members including a large amount of variation in floral, fruit, and chromosomal variation. Building on a previous study of Physarieae based on morphology and ndhF plastid DNA, we reconstructed the evolutionary history of the tribe using new sequence data from two nuclear markers, and compared the new topologies against previously published cpDNA-based phylogenetic hypotheses. The novel analyses included ca. 420 new sequences of ITS and LUMINIDEPENDENS (LD) markers for 39 and 47 species, respectively, with sampling accounting for all seven genera of Physarieae, including nomenclatural type species, and 11 outgroup taxa. Maximum parsimony, maximum likelihood, and Bayesian analyses showed that these additional markers were largely consistent with the previous ndhF data that supported the monophyly of Physarieae and resolved two major clades within the tribe, i.e., DDNLS (Dithyrea, Dimorphocarpa, Nerisyrenia, Lyrocarpa, and Synthlipsis)and PP (Paysonia and Physaria). New analyses also increased internal resolution for some closely related species and lineages within both clades. The monophyly of Dithyrea and the sister relationship of Paysonia to Physaria was consistent in all trees, with the sister relationship of Nerisyrenia to Lyrocarpa supported by ndhF and ITS, and the positions of Dimorphocarpa and Synthlipsis shifted within the DDNLS Clade depending on the employed data set. Finally, using the strong, new phylogenetic framework of combined cpDNA + nDNA data, we discussed standing hypotheses of trichome evolution in the tribe suggested by ndhF.

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Pollen characters as taxonomic evidence in some species of Dipsacaceae from Iran

Bangladesh Journal of Plant Taxonomy ◽

10.3329/bjpt.v24i2.35108 ◽

2017 ◽

Vol 24 (2) ◽

pp. 129-136 ◽

Cited By ~ 1

Author(s):

Ebadi-Nahari Mostafa ◽

Nikzat-Siahkolaee Sedigheh ◽

Eftekharian Rosa

Keyword(s):

Pollen Morphology ◽

Pollen Grains ◽

Pollen Grain ◽

Pollen Type ◽

Upgma Tree ◽

Pollen Characters ◽

Exine Ornamentation ◽

The Family ◽

The World ◽

Plant Taxon

Pollen morphology of nine species representing four genera: Cephalaria Schrad, Dipsacus L., Pterocephalus Vaill. and Scabiosa L. of the family Dipsacaceae in Iran has been investigated by means of scanning electron microscopy (SEM). The results showed that pollen grains were triporate and tricolpate. The pollen type of Scabiosa rotata Bieb. (tri- and tetraporate) is the first report in the world. The sizes of pollen grains fall into the classification group magna (pollen grain diameter 50–100 μm). Pollen shapes vary from preoblate to prolate and their polar views were triangulate and lobate. The exine ornamentation varies from gemmate in S. rotata to spinulate in the rest studied species. Species of Scabiosa have been dispersed in UPGMA tree that this confirmed the previous studies about taxonomic problems and species complexity in this genus. These results show the transfer of the some Scabisoa species to Lomelosia Raf. based on palynological characters. Pollen morphology of the family is helpful at the generic and specific level.Bangladesh J. Plant Taxon. 24(2): 129–136, 2017 (December)

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A molecular phylogenetic and DNA barcode assessment of the tribe Pterosiphonieae (Ceramiales, Rhodophyta) emphasizing the Northeast Pacific

Botany ◽

10.1139/cjb-2016-0083 ◽

2016 ◽

Vol 94 (10) ◽

pp. 917-939 ◽

Cited By ~ 18

Author(s):

Amanda M. Savoie ◽

Gary W. Saunders

Keyword(s):

South African ◽

North American ◽

New Genus ◽

Sequence Data ◽

Phylogenetic Analyses ◽

Dna Barcode ◽

Sensu Stricto ◽

North American Species ◽

African Species ◽

Molecular Phylogenetic

Sequence data (COI-5P and rbcL) for North American members of the tribe Pterosiphonieae were compared with collections from around the world. Phylogenetic analyses resolved Pterosiphonia as polyphyletic and many species required transfer to other genera. In our analyses Pterosiphonia sensu stricto included only the type species P. cloiophylla (C. Agardh) Falkenberg and P. complanata (Clemente) Falkenberg, as well as the South African species P. stegengae sp. nov. A new genus, Xiphosiphonia gen. nov., was described for X. ardreana (Maggs & Hommersand) comb. nov., X. pennata (C. Agardh) comb. nov., and X. pinnulata (Kützing) comb. nov. Some Asian, European and North American species previously attributed to Pterosiphonia were transferred to Symphyocladia including S. baileyi (Harvey) comb. nov., S. dendroidea (Montagne) comb. nov., S. plumosa nom. nov. (for P. gracilis Kylin), and S. tanakae (S. Uwai & M. Masuda) comb. nov. We also described two new North American species, Symphyocladia brevicaulis sp. nov. and S. rosea sp. nov. Other species formed a well-supported clade for which the genus name Polyostea Ruprecht was resurrected. Included in Polyostea were P. arctica (J. Agardh) comb. nov., P. bipinnata (Postels & Ruprecht) Ruprecht, P. hamata (E.S. Sinova) comb. nov., and P. robusta (N.L. Gardner) comb. nov.

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Sporoderm morphogenesis in Euphorbia obesa and Croton gratissimus

Bothalia ◽

10.4102/abc.v14i3/4.1253 ◽

1983 ◽

Vol 14 (3/4) ◽

pp. 849-856 ◽

Cited By ~ 7

Author(s):

M. L. Frean

Keyword(s):

Pollen Morphology ◽

Pollen Grains ◽

Physiological Adaptation ◽

Structure Characteristic ◽

Pollen Type ◽

Electron Microscope Level ◽

Pollen Characters ◽

Pollen Types ◽

Unisexual Flowers ◽

Taxonomic Grouping

Pollen grains of the Euphorbiaceae show a number of pollen types which can be clearly distinguished. Generally different genera are characterized by a specific pollen type. Euphorbia obesa Hook. f. and Croton gratissimus Burch, subsp. subgratissimus (Prain) Burtt Davy, represent two genera within the Crotonoideae with different morphology, each type characteristic for the respective genus. Taxonomically, the genus Euphorbia with apetalous flowers consisting of a naked pistil surrounded by several staminate flowers within a cyathium, is considered more advanced than the genus Croton. In Croton the inflorescence is a raceme with unisexual flowers. The floral whorls of the male show numerous anthers and both calyx and a showy corolla are present. Both genera are insect pollinated. In both Euphorbia obesa and Croton gratissimus the pollen wall in section shows columellae, a structure characteristic of angiosperms. However the present ontogenetic studies show that the formation of the columellae differs entirely in the two pollen types. The final stratification of the wall as well as the morphology of the grains differ and evaluation of the exine structure indicates that phylogenetically Croton pollen shows more advanced characters than Euphorbia — contradicting the floral phylogeny. This study conducted at light and electron microscope level compares the two pollen types morphologically and ontogenetically, concentrating mainly on the formation of the exine which is tectate-perforate in the prolate tricolpate grain of Euphorbia obesa and semi-tectate in the anaperturate, spheroidal grain of Croton gratissimus. The aim of the study was to evaluate the significance of pollen characters in taxonomic and phylogenetic relationships within the Euphorbiaceae. The differing pollen morphology which is related to the taxonomic grouping of tribes within the subfamily (Crotonoideae) emphasizes diversity, which may result from physiological adaptation. The study shows that the same functional end may well be achieved in different ways and this may be a factor underlying the diversity in the heterogeneous family Euphorbiaceae.

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Mitochondrial DNA dataset suggest that the genus Sphaerirostris Golvan, 1956 is a synonym of the genus Centrorhynchus Lühe, 1911

Parasitology ◽

10.1017/s0031182020000906 ◽

2020 ◽

Vol 147 (10) ◽

pp. 1149-1157 ◽

Cited By ~ 1

Author(s):

Nehaz Muhammad ◽

Suleman ◽

Munawar Saleem Ahmad ◽

Liang Li ◽

Qing Zhao ◽

...

Keyword(s):

Phylogenetic Analyses ◽

Systematic Position ◽

Likelihood Methods ◽

Sister Relationship ◽

Protein Coding ◽

Maximum Likelihood Methods ◽

Relationship Of ◽

First Time ◽

Mt Genome ◽

Rna Genes

AbstractOur present genetic data of Acanthocephala, especially the mitochondrial (mt) genomes, remains very limited. In the present study, the nearly complete mt genome sequences of Sphaerirostris lanceoides (Petrochenko, 1949) was sequenced and determined for the first time based on specimens collected from the Indian pond heron Ardeola grayii (Sykes) (Ciconiiformes: Ardeidae) in Pakistan. The mt genome of S. lanceoides is 13 478 bp in size and contains 36 genes, including 12 protein-coding genes (PCGs), 22 transfer RNA genes (tRNAs) and two ribosomal RNA genes (rRNAs). Moreover, in order to clarify the phylogenetic relationship of the genera Centrorhynchus and Sphaerirostris, and to test the systematic position of S. lanceoides in the Centrorhynchidae, the phylogenetic analyses were performed using Bayesian inference and maximum likelihood methods, based on concatenated nucleotide sequences of 12 PCGs, rRNAs and tRNAs. The phylogenetic results further confirmed the monophyly of the order Polymorphida and the paraphyly of the order Echinorhynchida in the class Palaeacanthocephala. Our results also challenged the validity of the genus Sphaerirostris (Polymorphida: Centrorhynchidae) and showed a sister relationship between S. lanceoides and S. picae (Rudolphi, 1819).

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Anterastes davrazensis sp. n. (Orthoptera, Tettigoniidae): morphology, song and 16S rDNA phylogeny

Zootaxa ◽

10.11646/zootaxa.3401.1.4 ◽

2012 ◽

Vol 3401 (1) ◽

pp. 49 ◽

Cited By ~ 1

Author(s):

SARP KAYA ◽

DRAGAN CHOBANOV ◽

BATTAL ÇIPLAK

Keyword(s):

New Species ◽

16S Rdna ◽

Sequence Data ◽

Phylogenetic Analyses ◽

Strong Support ◽

16S Rdna Sequence ◽

Rdna Sequence Data ◽

Male Calling ◽

Relationship Of ◽

The Relationship

The new species Anterastes davrazensis sp. n. (Orthoptera, Tettigoniidae) is described from south-eastern Turkey. Description, diagnosis and relationships of the new species were studied utilizing morphology, male calling songs and 16S rDNA sequence data from all species in the genus. Morphology and song syllable structure indicate A. davrazensis sp. n. is related to A. uludaghensis. Phylogenetic analyses based on representative haplotypes of 16S rDNA, using Sureyaella bella, Parapholidoptera distincta and Bolua turkiyae as outgroups, also suggested strong support to the relationship of these two species. A. davrazensis sp. n. differs from its closest relative A. uludaghensis by the higher number of stridulatory pegs and the song, consisting of irregular syllable groups.

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