scholarly journals Molecular phylogeny of Astragalus section Anthylloidei (Fabaceae) inferred from nrDNA ITS and plastid rpl32-trnL(UAG) sequence data

2014 ◽  
Vol 38 ◽  
pp. 637-652 ◽  
Author(s):  
Kosar NADERI SAFAR ◽  
Shahrokh KAZEMPOUR OSALOO ◽  
Ali Asghar MAASSOUMI ◽  
Shahin ZARRE
Keyword(s):  
Molecular Phylogeny ◽  
Sequence Data ◽  
Nrdna Its

scholarly journals Phylogeny of Muhlenbergia subg. Pseudosporobolus, including M. spatha (Poaceae, Chloridoideae, Cynodonteae, Muhlenbergiinae) now found in Zacatecas, Mexico

PhytoKeys ◽  
2018 ◽  
Vol 103 ◽  
pp. 83-94 ◽  
Author(s):  
Paul M. Peterson ◽  
Yolanda Herrera Arrieta ◽  
Konstantin Romaschenko
Keyword(s):  
Molecular Phylogeny ◽  
Sequence Data ◽  
Type Locality ◽  
Nrdna Its ◽  
San Luis ◽  
San Luis Potosi ◽  
Plastid Markers ◽  
San Luis Potosí

Muhlenbergiaspatha, previously known only from near the type locality in San Luis Potosí, is reported from two localities in Zacatecas, Mexico. Historically, botanists have overlooked this diminutive annual. To clarify affinities of M.spatha, we present a molecular phylogeny emphasising species in M.subg.Pseudosporobolus using sequence data from two plastid markers (rpl32-trnL and rps16 intron) and nrDNA ITS. In addition, we include an updated description, illustration and discussion of the habitat of M.spatha.

Systematics of disjunct northeastern Asian and northern North American Allium (Amaryllidaceae)

Botany ◽  
2012 ◽  
Vol 90 (6) ◽  
pp. 491-508 ◽  
Author(s):  
Hyeok Jae Choi ◽  
Liliana M. Giussani ◽  
Chang Gee Jang ◽  
Byoung Un Oh ◽  
J. Hugo Cota-Sánchez
Keyword(s):  
Molecular Phylogeny ◽  
North American ◽  
New World ◽  
Sequence Data ◽  
Molecular Data ◽  
Nrdna Its ◽  
Seed Shape ◽  
Phylogenetic Studies ◽  
Morphological And Molecular Data ◽  
Seed Testa

This study was undertaken to better understand Allium infrageneric taxonomy, character evolution, species diversification, and patterns of radiation in disjunct species between the New and Old World using morphological and molecular data. Taxonomic sampling focused on northeastern Asian (mainly Korean and northeastern Chinese) and representative disjunct northern North American (Canadian) species. Pistil and seed testa morphology was investigated using light and scanning electron microscopy, respectively. These characters were useful to assess degree of relationship at different taxonomic levels in Allium. Phylogenetic studies included nrDNA ITS and cpDNA trnL–trnF sequence data analyzed using maximum parsimony approaches. Our molecular phylogeny recovers a similar topology to that published in recent studies and confirms three major evolutionary lines and patterns of radiation regarding the ancestors of subgenera Amerallium and Anguinum in the genus. The northeastern Asian and northern North American disjunction in this genus is inferred to be the result of multiple intercontinental migrations. Seed testa sculpture attributes in combination with seed shape provide key characters to distinguish Allium’s major clades in the molecular phylogeny. The two types of ovarian processes, basal hood-like and apical crest-like in disjunct Old and New World species, respectively, are newly derived characters in each continent. Most infrageneric Allium groups are monophyletic, while subgenus Cepa is polyphyletic.

scholarly journals Redescription, Morphogenesis, and Molecular Phylogeny of Pseudosincirra longicirrata nov. comb., With Establishment of a New Genus Pseudosincirra nov. gen. (Ciliophora, Hypotrichia)

2021 ◽  
Vol 12 ◽  
Author(s):  
Qi Gao ◽  
Chen Shao ◽  
Qiuyue Tang ◽  
Jingbao Li
Keyword(s):  
Molecular Phylogeny ◽  
New Genus ◽  
Sequence Data ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Small Subunit ◽  
Ssu Rdna ◽  
Original Population ◽  
The Family ◽  
Rdna Sequence Data

The morphology and morphogenesis of Pseudosincirra longicirrata nov. gen. and nov. comb., isolated from southern China, were investigated with living observation and protargol staining. Our population is similar to the original population in living characteristics and ciliary patterns. The main determinable morphogenetic features of P. longicirrata nov. comb. are the presence of five frontoventral-transverse cirral anlagen (FVT-anlagen) and a dorsomarginal kinety anlage. According to the origin of FVT-anlagen IV and V in proter, it can be determined that P. longicirrata nov. comb. possesses two frontoventral rows and one right marginal row. Hence, a new genus, Pseudosincirra nov. gen., is proposed, and the diagnosis of P. longicirrata nov. comb. is improved. The new genus is diagnosed as follows: adoral zone of membranelles and undulating membranes is in a Gonostomum pattern; there are three enlarged frontal cirri, one buccal cirrus, and one parabuccal cirrus; postperistomial cirrus and transverse cirri are lacking; there are two more or less long frontoventral rows and one right and two or more left marginal rows; cirri within all rows very widely spaced; dorsal kinety pattern is of Urosomoida type, that is, three dorsal kineties and one dorsomarginal kinety; and caudal cirri are present. Phylogenetic analyses based on the small subunit ribosomal (SSU rDNA) sequence data indicate that P. longicirrata nov. comb. clusters with Deviata and Perisincirra. It is considered that Pseudosincirra nov. gen. and Perisincirra paucicirrata should be assigned to the family Deviatidae; fine cirri, and cirri within all rows being relatively widely spaced, should be considered as plesiomorphies of Deviatidae; and Deviatidae is closely related to Dorsomarginalia or Strongylidium–Hemiamphisiella–Pseudouroleptus.

scholarly journals A new species of Pestalotiopsis from leaf spots of Licuala grandis from Hainan, China

Phytotaxa ◽  
2013 ◽  
Vol 88 (3) ◽  
pp. 49 ◽  
Author(s):  
KUN GENG ◽  
BIN ZHANG ◽  
YU SONG ◽  
KEVIN D. HYDE ◽  
JI-CHUAN KANG ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Molecular Phylogeny ◽  
Gene Sequence ◽  
Sequence Data ◽  
Leaf Spots ◽  
A New Species ◽  
Type Sequence ◽  
Gene Sequence Data ◽  
Β Tubulin

A new species, Pestalotiopsis licualacola, was isolated from grey leafspots of Licuala grandis (ruffled fan palm). It is morphologically distinct in having relatively small, greyish brown conidia (16–20 × 3–5 μm), and 1–3 short apical appendages without knobs. Phylogenetic analysis based on combination of ITS, β-tubulin and tef1 gene sequence data clearly distinguishes P. licualacola from other species in this genus, with ex-type sequence data in GenBank. Based on morphology and molecular phylogeny we describe it as a new species.

Contribution to the phylogeny of Caucasian Nonea (Boraginaceae) inferred from nrDNA ITS and trnL-F data

Phytotaxa ◽  
2019 ◽  
Vol 418 (3) ◽  
pp. 258-272
Author(s):  
MURAT ERDEM GÜZEL ◽  
VUGAR KARIMOV ◽  
SERDAR MAKBUL ◽  
KAMİL COŞKUNÇELEBİ
Keyword(s):  
Sequence Data ◽  
Corolla Tube ◽  
Distinct Species ◽  
The Other ◽  
Nrdna Its ◽  
Close Attention ◽  
Phylogenetic Structure ◽  
Generic Delimitation ◽  
Taxonomic Studies ◽  
Good Support

Nonea (Boraginaceae) with nearly 35 species was divided into four sections based on the shape of mericarpids and the position of the anthers in the corolla tube. Although several comprehensive taxonomic studies have been performed on Turkish and European Nonea taxa, Caucasian ones have not been studied well. Therefore Caucasian Nonea need close attention with regard to molecular systematics. In this study, 15 Caucasian Nonea including N. cyanocalyx and N. bakuensis were evaluated with nrDNA ITS and cpDNA trnL-F sequence data using Maximum Parsimony and Bayesian Inference to reconstruct phylogeny. All examined members of Nonea were grouped at three main clades with weak to good support values based on nrITS and at two main clades with moderate to good support values based on trnL-F. Both trees did not coincide with the traditional sub-generic delimitation of Nonea, but nrITS tree supported monophyly of Nonea. On the other hand, Pulmonaria is deeply nested in Nonea in the trnL-F tree. Moreover, present findings support treating N. cyanocalyx and N. bakuensis as distinct species rather than subspecies and revealed a preliminary phylogenetic structure of little known Caucasian Nonea.

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