scholarly journals Molecular phylogeny of the sect. Adonis (Genus adonis L., Ranunculaceae)

Genetika ◽  
2020 ◽  
Vol 52 (3) ◽  
pp. 1075-1086
Author(s):  
Fatemeh Najariyan ◽  
Masoud Sheidai ◽  
Fahimeh Koohdar ◽  
Mehdi Talebi
Keyword(s):  
Molecular Phylogeny ◽  
Multivariate Analyses ◽  
Morphological Characters ◽  
Leaf Length ◽  
Species Differentiation ◽  
New Classification ◽  
Species Relationship ◽  
Petal Length ◽  
Leaf Arrangement ◽  
Flower Diameter

The ornamentally important genus Adonis L. (Ranunculaceae) consists of about 30 species. In Iran, 8 species are recognized. The new classification system recognizes two subgenera, six sections, and six series for Adonis. The species differentiation within the genus is controversial due to morphological overlaps in different species and extensive morphological variation. Therefore, the aims of present study were: 1- Species delimitation within the Sect. Adonis based on morphological and molecular evidences and, 2- Studying the species relationship based on molecular phylogeny. Multivariate analyses of morphological and molecular (ITS and ISSR) data differentiated the Adonis species. PCA biplot analysis of morphological characters revealed morphological characters such as leaf arrangement; leaf length, flower diameter, petal length and width, calyx length, and pedicel length are of taxonomic implication in Adonis. Bayesian tree of ITS sequences revealed that the sect. Adonis is differentiated from the sect. Adonanthe. Based on ITS data, A. microcarpa showed close affinity to A. scrobiculata, while A. aestivalis, A. icrocarpa and A.dentata were close to each other.

Morphometric analysis of Polish members of the Potentilla subsect. Collinae in Poland

Biologia ◽  
2010 ◽  
Vol 65 (2) ◽  
Author(s):  
Jeremi Kołodziejek
Keyword(s):  
Principal Component Analysis ◽  
Cluster Analysis ◽  
Morphometric Analysis ◽  
Numerical Taxonomy ◽  
Principal Component ◽  
Morphological Characters ◽  
Length Ratio ◽  
Operational Taxonomic Units ◽  
Petal Length ◽  
Flower Diameter

AbstractMethods of numerical taxonomy, i.e. Cluster Analysis, Principal Component Analysis (PCA), Discriminant Function (DF) and Correspondence Analysis (CA), have been used to analyse 132 Operational Taxonomic Units of Potentilla subsect. Collinae. Among 53 morphological characters (20 quantitative and 33 qualitative), the most useful appeared following: bent inflorescence, flower diameter, width of epicalyx segments, length and width of petal, length ratio of calyx to petals, length ratio of calyx to epicalyx segments, shape of carpel style, presence of basal leaves during flowering, number of leaflets on basal leaves, upper and lower surfaces of leaf blades, pattern of pubescence of calyx, nervation of leaves as well as number and size of teeth of the central leaflet. The following taxa were distinguished in the investigated subsection: P. collina Wibel s.str.; P. thyrsiflora Hülsen ex Zimmeter; P. silesiaca R. Uechtr.; P. wimannania Günther et Schummel; P. leucopolitana P.J. Müll.; P. karoi R. Uechtr. ex Zimmeter; P. schultzii P.J. Müll. ex F. W. Schultz; P. koernickei R. Uechtr. ex Zimmeter; P. leucopolitanoides Błocki; P. ×sholziana Callier; P. leucopolitana P.J. Müller × P. incana P. Gaertner, B. Meyer & Scherb.); P. × tynieckii Błocki (P. argentea L. × P. leucopolitana P.J. Müll.).

scholarly journals Identification of Dendrobium (Orchidaceae) in Liwa Botanical Garden Based on Leaf Morphological Characters

2021 ◽  
Vol 6 (1) ◽  
pp. 59423
Author(s):  
Mahfut Mahfut ◽  
Tundjung Tripeni Handayani ◽  
Sri Wahyuningsih ◽  
Sukimin Sukimin
Keyword(s):  
Ornamental Plants ◽  
Similarity Index ◽  
Botanical Garden ◽  
Morphological Characters ◽  
Leaf Length ◽  
Morphological Variations ◽  
Phenetic Relationships ◽  
Leaf Arrangement ◽  
Index Value ◽  
Character Classification

Orchid is one of the most popular ornamental plants in the world. One of the orchid genera that is collected in a large number and known to have high morphological variations in the Liwa Botanical Garden is Dendrobium. However, to date, many Dendrobium collections have not been identified. Given the urgency of identification and the limitations of specimens in the field, especially flower organs, this study is important. This study aims to determine variations in morphological characters, phenetic relationships, and to identify Dendrobium collections based on leaf morphological characters in the Liwa Botanical Garden. Five accessions of Dendrobium were collected, namely CAT140, CAT 144, CAT 271, CAT 274, and IR015. Observation of 11 morphological characters leaves showed that leaf had high variations. The phenetic relationship based on the Gower similarity value and the UPGMA method shows that the Dendrobium in the Liwa Botanical Garden can be classified into 2 main groups formed with a similarity index value of 0.813. Based on Principle Component analysis values, it is known that the characters that have a large influence on grouping are the ratio of leaf length and width, leaf cross section, and leaf arrangement. The phenetic dendrogram topology is supported by the morphological character classification. The results of this study are expected to be basic information in the identification of natural orchids and conservation efforts in the Liwa Botanical Garden.

scholarly journals STUDIES ON THE VARIABILITY OF MORPHOLOGIVAL AND QUALITY CHARACTERS IN SAFFRON (CROCUS SATIVUS)

2021 ◽  
Vol 10 (19) ◽  
pp. 299-306
Author(s):  
Ionuț-Valentin Vasile ◽  
Roxana Luca-Vasile ◽  
Emilian Madoșă
Keyword(s):  
Morphological Characters ◽  
Scientific Data ◽  
Leaf Length ◽  
Point Of View ◽  
Crocus Sativus ◽  
Petal Length ◽  
The Two Cultures ◽  
Number Of Leaves ◽  
Pharmaceutical Properties ◽  
Quality Categories

Saffron is an aromatic herb appreciated for its olfactory qualities, but also for its medicinal contributions, having multiple pharmaceutical properties. The cultivation of saffron in Romania is rather little known, the scientific data obtained being of interest for farmers who want to start such a culture. In this paper two populations of saffron were studied, the bulbs being of the same origin and age, grown in two different localities in western Romania: Izvin and Cicir. Regarding the quality characteristics, the two cultures belong to quality categories 1 and 2, and analyses were determined on moisture, colouring power (crocin), aromatic power (safranal) and bitterness power (picrocrocin). From a quantitative point of view, the variability of morphological characters, the manifestation of morphological characters, the coefficients of corallance on characters such as: number of bulbs, total diameter of bulbs, diameter of dominant bulb, length of leaflet, leaf length, leaf width, number of leaves dominant bulb, petal length, petal width, petal number, stamen length, stigma length were determined.

Morphology, nomenclature and distribution of Bassia monticola (Chenopodiaceae-Amaranthaceae), a poorly known species from Western Asia

2020 ◽  
pp. 13-17
Author(s):  
A. P. Sukhorukov ◽  
M. A. Kushunina
Keyword(s):  
Molecular Phylogeny ◽  
Morphological Characters ◽  
Mountainous Regions ◽  
Western Asia

Kochia monticola was previously considered as a synonym for the widely distributed Irano-Turanian Panderia pilosa. After the merger of Kochia and Panderia with Bassia based on molecular phylogeny, K. monticola remained a synonym of Bassia pilosa. We claim that Bassia monticola, a name proposed by Kuntze (1891) for K. monticola, should be separated from B. pilosa based on morphological characters and localised distribution in mountainous regions of Iran, Iraq, Syria, and Lebanon at altitudes 1800–2600 m a. s. l.

Intraspecific variability of morphological characters in the species-rich deep-sea genus Acantholaimus Allgén, 1933 (Nematoda: Chromadoridae)

Nematology ◽  
2016 ◽  
Vol 18 (4) ◽  
pp. 455-473 ◽  
Author(s):  
Dmitry M. Miljutin ◽  
Maria A. Miljutina
Keyword(s):  
Deep Sea ◽  
Intraspecific Variability ◽  
Morphological Characters ◽  
Molecular Data ◽  
Species Discrimination ◽  
Species Differentiation ◽  
Lateral Field ◽  
Operational Taxonomic Units ◽  
General Arrangement ◽  
Taxonomic Approach

Acantholaimusis a species-rich genus of deep-sea nematodes, often with dozens of species found at the same locality but each represented by single or few individuals. Species discrimination by morphological characters in this genus is therefore often difficult due to transitional forms that may be referred to several species because of lack of data on intraspecific variability. The aim of this study was to evaluate the intraspecific variability of morphological characters that are most often used inAcantholaimustaxonomy, in order to distinguish those which are most informative for species differentiation. A reverse taxonomic approach was applied for initial species discrimination. Two loci, one each from small and large subunits of rRNA, were sequenced for 59Acantholaimusspecimens from two deep-sea locations. Twenty-seven Molecular Operational Taxonomic Units (MOTU) were identified, of which 12 were represented by more than one individual. These were then analysed for intraspecific variability in morphological characters. Some of the examined characters showed high intraspecific variability; specifically: length of cephalic setae; distance from anterior end to amphid; shape of anterior setae; position and arrangement of cervical setae. In the absence of genetic data, these characters should be used with caution for differential diagnoses or species discrimination. Other characters were more conservative within the same MOTU: body proportions; length of outer labial setae; amphidial diam.; appearance of lateral field; general arrangement of cervical setae; and shape of tail. These characters may be successfully used for species discrimination in the absence of molecular data.

scholarly journals MORPHOLOGICAL AND CHROMOSOMAL CHARACTERIZATION OF ORCHID Peristylus goodyeroides Lindl. FROM CURUG SETAWING, KULONPROGO

2021 ◽  
Vol 12 (2) ◽  
pp. 110
Author(s):  
Febri Yuda Kurniawan ◽  
Anindita Della Rosa Riyadi
Keyword(s):  
Leaf Shape ◽  
Ecological Factors ◽  
Morphological Characters ◽  
Morphological Characterization ◽  
Observation Data ◽  
Chromosome Configuration ◽  
Telocentric Chromosomes ◽  
Leaf Arrangement ◽  
Karyotype Formula

Peristylus goodyeroides is a terestrial orchid that scattered around Southeast Asia. Morphological characters of P. goodyeroides can vary, depending on the ecological factors and habitat. Cytological characters in the form of chromosome configurations can be used as a taxonomic tool for the process of identifying and understanding variations in taxa. The purpose of this study was to determine the morphological characters and chromosome configuration of the P. goodyeroides from Curug Setawing, Kulonprogo. The method used was morphological characterization and plant chromosome preparation by squash method with the main steps of fixation, maceration, staining and observation. Data were analyzed with the help of Image raster 3, Corel Draw X7, and Microsoft Excel 2013. P. goodyeroides from Curug Setawing has the morphological characters of root tubers, cylindrical stems, ovate leaf shape, convolutive leaf arrangement and creamy white flowers. The orchid has a number of chromosomes 2n = 10 with a karyotype formula of 2n = 2x = 8m + 2t. Metacentric chromosomes are found on chromosomes 1-8 and telocentric chromosomes 9-10. The absolute arm length of the chromosomes has a range of 2.03-3.44 μm, the relative arm length of the chromosomes is 2.21-3.32 μm, the length of the p arm is 1.13-1.58 μm and the q arm is 1.23-2.12 μm.

scholarly journals Overview and revision of the extant genera and subgenera of Trogidae (Coleoptera: Scarabaeoidea)

2016 ◽  
Vol 47 (1) ◽  
pp. 53-82 ◽  
Author(s):  
Werner P. Strümpher ◽  
Martin H. Villet ◽  
Catherine L. Sole ◽  
Clarke H. Scholtz
Keyword(s):  
Molecular Phylogeny ◽  
Endemic Species ◽  
Strong Support ◽  
Morphological Characters ◽  
New Combinations ◽  
Genus Level ◽  
Generic Rank ◽  
The Family ◽  
Taxonomic Changes

Extant genera and subgenera of the Trogidae (Coleoptera: Scarabaeoidea) are reviewed. Contemporary classifications of this family have been based exclusively on morphological characters. The first molecular phylogeny for the family recently provided strong support for the relationships between morphologically defined genera and subgenera. On the basis of morphological, molecular and biogeographical evidence, certain taxonomic changes to the genus-level classification of the family are now proposed. The family is confirmed as consisting of two subfamilies, Omorginae Nikolajev and Troginae MacLeay, the former with two genera,OmorgusErichson andPolynoncusBurmeister, and the latter with two genera,TroxFabricius andPhoberusMacLeaystat. rev.Phoberusis restored to generic rank to include all Afrotropical (including Madagascan endemic) species;Afromorgusis confirmed at subgeneric rank within the genusOmorgus; and the monotypic Madagascan genusMadagatroxsyn. n.is synonymised withPhoberus.The current synonymies ofPseudotroxRobinson (withTrox),ChesasBurmeister,LagopelusBurmeister andMegalotroxPreudhomme de Borre (all withOmorgus) are all accepted to avoid creating speculative synonyms before definitive phylogenetic evidence is available. New combinations resulting from restoringPhoberusto a monophyletic genus are listed in Appendix A.

Taxonomic changes and description of two new species for the Phyllodactylus lanei complex (Gekkota: Phyllodactylidae) in Mexico

Zootaxa ◽  
2018 ◽  
Vol 4407 (2) ◽  
pp. 151 ◽  
Author(s):  
TONATIUH RAMÍREZ-REYES ◽  
OSCAR FLORES-VILLELA
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Genetic Distance ◽  
Morphological Characters ◽  
Integrative Taxonomy ◽  
Cryptic Diversity ◽  
Ecological Data ◽  
Temperature And Precipitation ◽  
Two New Species ◽  
Taxonomic Changes

An integrative taxonomy approach was implemented based on analysis of genetic, phylogenetic, morphological and ecological data to identify the cryptic diversity within the Phyllodactylus lanei complex. At least six species can be identified, of which four are currently considered subspecies: Phyllodactylus lanei, Phyllodactylus rupinus, Phyllodactylus isabelae, Phyllodactylus lupitae and two corresponding to undescribed taxa, which are identified and described in this contribution. These differ from other Mexican geckos in several characters: genetic distance (DNAmt), position in molecular phylogeny (concatened data DNAmt+DNAnu), species tree, morphological characters such as snout-vent length, longitudinal scales, tubercles from head to tail, interorbital scales, scales across venter, third labial–snout scales and rows of tubercles across dorsum; there are also differences in their bioclimatic profiles (temperature and precipitation) and geographical distribution. The most recent studies on taxonomy and evolution of Mexican geckos (Phyllodactylus) show that the diversity of this group of reptiles is currently underestimated, suggesting that more research and conservation efforts are should be addressed at these lizards. 

Leptolejeunea nigra (Lejeuneaceae), a new species with brownish black ocelli based upon morphology and DNA sequences

Phytotaxa ◽  
2019 ◽  
Vol 427 (1) ◽  
pp. 31-42
Author(s):  
LEI SHU ◽  
RUI-LIANG ZHU
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Dna Sequences ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Time Span ◽  
Molecular Dating ◽  
Molecular Phylogenetic ◽  
Brownish Black ◽  
A New Species

Based on molecular phylogenetic analyses and morphological characters, a new species from Bangladesh, northern Vietnam, and southwestern China, Leptolejeunea nigra, is described. It is mostly similar to L. balansae but remarkable for having brownish black ocelli in its leaf lobes. In the molecular phylogeny, the samples of L. nigra are not nested within any clade and form an independent lineage. In particular, the molecular dating suggested that the divergence of L. nigra happened in time span of the formation of the Himalayas.

A molecular phylogeny and a new classification of parmelioid lichens containingXanthoparmelia­type lichenan (Ascomycota: Lecanorales)

Taxon ◽  
2004 ◽  
Vol 53 (4) ◽  
pp. 959-975 ◽  
Author(s):  
Oscar Blanco ◽  
Ana Crespo ◽  
John A. Elix ◽  
David L. Hawksworth ◽  
H. Thorsten Lumbsch
Keyword(s):  
Molecular Phylogeny ◽  
New Classification
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