Iraj Mehregan

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Verified

Iraj verified their affiliation via an institutional email.

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• PhD
• Guest Scientist/Lecturer at Carl von Ossietzky University of Oldenburg

Cousinia sect. Cynaroideae, the largest section of Cousinia with 110 published species, is characterized by a chromosome number of 2n = 24, ± decurrent to spiny-winged leaves and appendaged phyllaries. It is distributed in Lebanon, Syria, Turkey, the Caucasus, Iraq, Iran, Turkmenistan, Afghanistan and Pakistan, with centres of specific diversity ma...

Assumptions about the phylogenetic relationships of Hymenocrater and closely related genera were tested using nrITS and plastid trnL intron and trnL-F intergenic spacer DNA sequences datasets. Here we present a phylogenetic analysis based on the sequence data of 62 species belonging to Hymenocrater, Lophanthus, Marmoritis and Nepeta along with repr...

Target enrichment is a cost-effective sequencing technique that holds promise for elucidating evolutionary relationships in fast-evolving lineages. However, potential biases and impact of bioinformatic sequence treatments in phylogenetic inference have not been thoroughly explored yet. Here, we investigate this issue with an ultimate goal to shed l...

The subtribe Saussureinae is a highly speciose group with more than 600 species distributed in the Northern Hemisphere and is particularly species‐rich at the high mountains of central and eastern Asia. Saussurea and Jurinea are the two main genera described within the subtribe. However, up to 15 satellite genera are recognized in some recent taxon...

Dionysia belongs among those plant genera that catch the imagination of nature lovers as well as garden amateurs. In botanic gardens, their profuse flowering never fails to attract attention. In nature, a precipice high in the Zagros Mountains, when dotted with yellow or violet Dionysia cushions, is a rare, yet spectacular, sight. Restricted to Ira...

Caulerpa racemosa is edible marine green algae of the Caulerpaceae family. C. racemosa is consumed as a sea vegetable in many countries, especially Southeast Asian countries. In recent years, molecular studies caused some changes in the taxonomic positions of the members of the genus Caulerpa. It is necessary to accurately identify species of this...

Simple sequence repeat (SSR) markers are among more reliable markers widely used in population genetics and traditionally need intensive labor to develop. High-throughput sequencing (HTS) has enabled researches in screening whole DNA in order to develop dozens of reliable SSR markers to pave route for future studies. Annual medics (Medicago spp.) a...

Since the first description of Salvia majdae (syn. Zhumeria majdae ) in 1967, its taxonomic status has remained an enigma within Salvia senso lato due to its unusual characters, in particular the floral structure. Based on recent molecular phylogenetic data, two defensible opinions on its status have been proposed. Here, we studied the floral devel...

The Irano-Turanian region is one of the world’s richest floristic regions and the centre of diversity for numerous xerophytic plant lineages. However, we still have limited knowledge on the timing of evolution and biogeographic history of its flora, and potential drivers of diversification remain underexplored. To fill this knowledge gap, we focus...

Iranian Fabaceae family including many genera (except Astragalus)

The floras on the highest mountains in tropical eastern Africa are among the most unique floras in the world. Despite the exceptionally high concentration of endemic species, these floras remain understudied from an evolutionary point of view. In this study, we focus on the Carduus-Cirsium group (subtribe Carduinae) to unravel the evolutionary rela...

We conducted a comprehensive study on the diversity of Silene aucheriana Boiss. populations by analyzing both morphological data and nrDNA ITS sequences. Maximum parsimony and Bayesian methods on representative material from 15 populations throughout Iran demonstrated that they did not form a monophyletic group. Strong positive correlation occurred...

Silene aucheriana Boiss. belongs to the Sect. Auriculatae (Boiss.) Schischk. in the Caryophyllaceae family, widely distributed in Iran. In this study, 75 random samples from 15 populations of different geographical and climate conditions in Iran were collected. Inter Simple Sequence Repeat (ISSR) technique has been used to analyse the genetic diver...

Background and aims: Artemisia is a mega-diverse genus consisting of ca. 400 species. Despite its medicinal importance and ecological significance, a well-resolved phylogeny for global Artemisia, a natural generic delimitation and infrageneric taxonomy heretofore remain missing, owing to the obstructions from limited taxon sampling and insufficien...

Unlabelled: Wheat (Triticum aestivum) is one of the most important crops in the world. This investigation was attempted to evaluate the transcriptional responses of aquaporins (AQPs) to the mycorrhizal inoculation and/or water deficit conditions in wheat to clarify how the arbuscular mycorrhizal symbiosis can contribute to the modulation of water...

Nutlet pericarp structure is important in the taxonomy of Lamiaceae (Labiatae) at different taxonomic levels. Within the family it has also been found that variation in pericarp structure is strongly correlated with the phylogenic results obtained from molecular DNA analyses. The genus Nepeta L., with more than 200 species mainly centred in SW Asia...

Phlomis olivieri (Lamiaceae) is a medicinal plant that exhibits diverse variations across a multitude of geographical ranges. Here, we studied the genetic diversity of this species according to start codon targeted (SCoT) markers and morphological variability based on 15 morphological traits. Specifically, the genetic diversity was studied among 10...

In this paper, pod morphological traits of eleven populations of Medicago orbicularis (L.) Bartal., collected from the West, Northwest, and Southwest of Iran, have been assessed. In addition, nuclear ribosomal Internal Transcribed Spacer (nrITS, ITS1+5.8s+ITS2) variation in four populations of M. orbicularis was analyzed. Molecular phylogenetic ana...

A successful management and preservation of the natural populations depend on accurate assessment of genetic diversity. Knowing the genetic diversity within a population is important for choosing the conservation strategies for the species. The genus Carpinus belonging to Coryloideae, Betulaceae, has significant economic and ornamental importance....

Medicago sinskiae es considerada una especie rara en la flora iraní con únicamente unas pocas citas en las tres últimas décadas. Se han muestreado ocho poblaciones (62 individuos) de M. sinskiae, una población de M. rigidula (siete individuos) y una población de M. constricta (cinco individuos) en el oeste y el suroeste de Irán que han sido analiza...

Rhabdosciadium aucheri has a limited distribution in west, center, and south of Iran. The aim of the present study was to assess essential oil content and variability in seven natural populations employing GC-FID and GC-MS analyses. Aerial parts of the specimens were collected at the full flowering stage. Overall, 27 chemical components were determ...

Medicago rigiduloides E. Small is a mostly Asian species that was recently separated from the extremely closely related, mostly European species, M. rigidula (L.) All. Medicago is a large genus of about 90 species, but there has never been a study of how any of these interact geographically where they meet. This, the first such study, documents the...

Water speedwells (Veronica anagallis-aquatica L.) mostly occur in damp freshwater places. They show a high level of phenotypic plasticity in response to variations in environmental factors, a characteristic that allows them to occur over a wide range of conditions. Populations of V. anagallis-aquatica are scattered in many parts of Iran and often h...

Dionysia splendens Alipour, Mehregan & Lidén, sp. nov., from Fars, Iran, is a unique species that cannot be easily accommodated in any hitherto recognised section of the genus and is immediately recognised by its large flowers and pectinate leaves with very broad pale and thick midvein. It agrees with Dionysia cespitosa Duby (Boiss.) in the small f...

Dionysia jamzadiae Lidén, M.Irvine, Alvén & Mehregan, from the east Zagros Mountains, Fars, Iran, is described as new to science. It belongs in section Dionysiopsis and is similar to D. oreodoxa Bornm. but differs in, for example, its sparsely glandular hairy or almost glabrous corolla with emarginated lobes (densely non-glandular pubescent with en...

Concerning the increasing importance of feeding livestock with valuable fodder, the recent study was focused on characterizing the genetic and morphological diversity in bur clover (Medicago polymorpha) samples collected from different regions of Iran by using morphological traits and internal transcribed spacer (ITS) analysis. A total of 14 popula...

Medicago minima (L.) Bartal. is an important rangeland forage and weed, native to Eurasia and Africa but widely distributed elsewhere. Like dozens of its nearest annual Medicago species, it is known to be highly uniform due to extreme inbreeding, and no valid infra-specific taxa meriting recognition have yet been proposed. In this study, 67 individ...

This study aims to revise the taxonomic status of Rhamnus L. and Atadinus Raf. (Rhamnaceae) for the Flora of Iran. Nine species, including 15 taxa are recognized, described and compared with their closely related taxa. These include one new species, R. rahiminejadii Alijanpoor & Assadi, one new subspecies, R. pallasii subsp. mazandaranica Alijanpoo...

A comprehensive study was undertaken to understand the genetic status and help to clarify the division of Medicago rigidula (largely European) and Medicago rigiduloides (largely Asian). Genetic diversity parameters collectively suggested a low genetic diversity (avg. Ho, 0.073; He, 0.374) accompanied by high population differentiation (avg. F, 0.83...

Caulerpa is a genus of siphonous green algae belonging to Caulerpaceae which consists of about 103 accepted species of tropical to subtropical seas. Recently, some species of the genus have expanded their distribution into more temperate environ- ments such as the Mediterranean Sea. Due to their bioactive compound and secondary metabolites, content...

Dionysia avia, a new species from Esfahan province of Iran, is described, illustrated and compared with similar and related species. The new species is similar to D. bachtiarica and D. lamingtonii, but differs from the former mainly in showing isophylly and having abaxially pubescent leaves, pubescent calyx lobes and corollas, and capsules with 5-6...

Rahiminejad, M. R. 2021. 06. 30: Taxonomic circumscription and relationship in Rhamnus L. and Atadinus Raf. (Rhamnaceae) species in Iran based on morphological characters. Iran. J. Bot. 27 (1):05-19. Tehran. The genera Rhamnus and Atadinus have been dealt as a sigle genus, namely Rhamnus or two distinct genera. The genus Atadinus, includes unarmed...

Alhagi Gagnebin (Fabaceae: Hedysareae) is a small genus of shrubs or subshrubs distributed in temperate and tropical regions of Asia, Europe, and Africa. The exact number of Alhagi species in Iran has been disputable. Studies showed that morphology, seed protein, and chromosome characters could not clearly delimitate the species boundaries of the g...

Burr medic (Medicago polymorpha L.), a native of the Mediterranean Basin, has become a worldwide weed. Pasture cultivars have been selected, especially in Australia. The species is extremely variable, and there is little agreement on its infraspecific classification. Towards a better understanding of its variation pattern, present study examined po...

Invasive plant species are a major threat to biodiversity worldwide. Thus, information on their distribution, morphological variation as well as their reaction to ecological parameters are required to adequately evaluate their threat and manage invasions. Plantago major is a cosmopolitan invasive plant species and a possible threat to the local flo...

Background and objectives: Acinetobacter baumannii is recognized as an important pathogen responsible for serious infections causing episodes of hospital infection. Carbon nanotubes (CNTs) have recently emerged as superior materials against antibiotic-resistant bacteria. In this study, a new chemical compound was designed in order to combat A. bau...

Rhabdosciadium aucheri (Apiaceae) is an Iranian endemic species, which grows in west, center and south regions of Iran. The aim of the present study was to investigate the genetic diversity, population structure and morphological variations of 70 individuals belonging to seven geographical populations of Hamadan, Lorestan, Kurdistan and Chaharmahal...

The genus Ephedra of the Ephedraceae contains more than 60 species of non-flowering seed plants (Gymnosperms) dispersed all through Asia, America, Europe, and North Africa. These Ephedra species have medicinal, ecological, and economic value. Ephedrine is an important active components of ephedra species. This study aimed to evaluate the content of...

Once only limited to Eurasia, the worldwide distributed Plantago major L. is now considered as invasive. Its significant distributional range in Iran requires molecular scientific efforts to reliably elucidate its genetic diversity and population structure. Therefore, analysis of genetic diversity of 17 different populations of P. major by ISSR mar...

Teucrium polium is a Mediterranean native subshrub with large distribution range and high medicinal values which overexploitation of its population has become a serious danger and conservation attempts is needed. Having the genetic information of its population can help to clarify the complicated phylogenetic relationships of species within the sec...

Medicago sinskiae is a poorly understood but fast-expanding species in western and southwestern Iran. The present study was performed to investigate its relationships with other taxa in the M. rigidula complex including M. constricta, and M. rigidula s.l. (including M. rigiduloides). The Principal Component Analysis (PCA) and cluster analysis were...

Online at: https://rdcu.be/cbqQJ Rhabosciadium aucheri is an Iranian endemic herbaceous species that grows in the west, center, and south regions of Iran. In the present study, genetic variation of 70 individuals belonging to seven natural populations of four provinces was investigated using Random Amplified Polymorphic DNA (RAPD) markers. Ten out...

Phylogenetic analyses of some sections of Silene (Caryophyllaceae) were presented by using nrDNA ITS and cpDNA rps16 intron sequences. Forty taxa, belonging to the sections Auriculatae, Spergulifoliae, Lasiocalycinae, and Ampullatae, were investigated. The molecular results showed that the species belonging to S. sect. Auriculatae, Spergulifoliae,...

Lepraria eburnea , L. ecorticata , L. jackii, and L. leuckertiana , found in deciduous forests in Golestan province, are recorded for the first time from Iran. Descriptions and illustrations of all four species and a key to all Lepraria species known from Iran are provided.

The preparation of pyrazolo pyrimidinone derivatives were performed by using five component reactions of phthalaldehyde, cyanomethylamine, electron deficient acetylenic compounds, isocyanate, hydrazine and catalytic amounts of ZnO/Fe3O4‐magnetic nanoparticles as a high performance catalyst under ultrasonic conditions at ambient temperature in aquau...

One of the most important families of Iranian flora is Apiaceae (Umbelliferae). Most of the species of this family are aromatic plants and rich in essential oils with diverse structures. In the present review, the essential oil composition of 63 genera comprising 141 Apiaceae (66.4% native 33.6% endemic) are summarized.

A phylogenetic study of Silene sect. Lasiostemones and sect. Sclerocalycine in Iran is presented. A total of 72 accessions (43 of which obtained from GenBank) were analyzed using nuclear ITS and chloroplast rps16 markers. It was shown that sect. Lasiostemones is not a monophyletic group, including members which would belong to sect. Sclerocalycine...

Background: Pseudomonas aeruginosa is an opportunistic human pathogen that causes severe acute and chronic nosocomial infections, especially in immunocompromised burn patients. and can lead to severe mortality and morbidity. The emergence of antibiotic resistant P. aeruginosa infections has created significant challenges in treating these patients...

The main aim of this study was to evaluate physiological and growth-associated drought tolerance responses of mycorrhiza inoculated T. aestivum L., cv. Chamran seedlings with G. mosseae in flag leaves and roots. The arbuscular mycorrhizal (AM) or non-AM wheat seedlings under normal or water-stressed conditions were assessed for growth parameters, r...

The Flora of Iraq is the only flora for this region in the Middle East. It enables anyone documenting, studying, or managing Iraq’s vast and rich flora to identify the vascular cryptograms and flowering plants. In addition to the detailed taxonomic information, a large amount of supplementary data of general biological interest and economic interes...

Solanum kieseritzkii, an endemic species of Iran and the Caucasus, has been recently introduced in botanical sources as unresolved species and sometimes has been regarded a synonymous of S. dulcamara. In this research, along with field and herbarium studies, a morphological and molecular comparison is made between these two species; each of them is...

Solanum kieseritzkii, an endemic species of Iran and the Caucasus, has been recently introduced in botanical sources as unresolved species and sometimes has been regarded a synonymous of S. dulcamara. In this research, along with field and herbarium studies, a morphological and molecular comparison is made between these two species; each of them is...

Iron oxide nanoparticle fabrications have gained increasing attention owing to their vital role in industrial application. Taking green synthesis of nano-products into account, this experiment was conducted to provide a simple, facile, economic, and fast procedure for the biosynthesis of Fe2O3 nanoparticles using fruit extracts of Cornelian cherry....

Rhabosciadium aucheri is an Iranian endemic herbaceous species that grows in the west, center, and south regions of Iran. In the present study, genetic variation of 70 individuals belonging to seven natural populations of four provinces was investigated using Random Amplified Polymorphic DNA (RAPD) markers. Ten out of twenty-two RAPD primers employ...

Alhagi is a small genus of desert or semi-desert shrubs with about six species widely distributed throughout northern Africa, eastern Mediterranean, the Middle East to the Central Asia, and small parts of India and China. Despite previous molecular and morphological studies on the genus, the taxonomy of Alhagi has been remained controversial. In or...

As a highly valuable source of ephedrine, Ephedra major is well-adapted to various habitats in Iran. Over the last few decades, human's activity, in particular, over exploitation of its populations to extract medicinally valuable constitutes, have endangered this species. In this investigation, the level of genetic diversity and genetic structure i...

Mycorrhizal symbiotic relationship is one of the most common collaborations between plant roots and the arbuscular mycorrhizal fungi (AMF). The first barrier for establishing this symbiosis is plant cell wall which strongly provides protection against biotic and abiotic stresses. The aim of this study was to investigate the gene expression changes...

Background and objectives: Burkholderia mallei is the leading cause of glanders, a highly transmittable and an OIE-notifiable disease of equidae. Despite the importance of B. mallei, little is known about serodiagnosis of glanders. The present study aimed to develop an immunoblotting assay based on whole-cell proteome of B. mallei to enable accura...

Background: Solanum section Solanum has been extensively used in traditional medicine in Iran for many ailment treatments. The plant contains some substances such as total alkaloid, steroid alkaloid, steroidal saponins and glycoprotein, exhibiting anti-tumor activity. Objective: In this research, wild species of Solanum section Solanum has been stu...

The lichen species Bilimbia sabuletorum (Schreb.) Arnold, Canoparmelia crozalsiana (B. de Lesd. ex Harm.) Elix & Hale and Candelaria pacifica M. Westb. & Arup are reported for the first time from Iran; Involved are new reports of two genera for Iran, Bilimbia and Canoparmelia. The species grow as epiphyte in broad-leaved forests in Golestan Provinc...

In this paper, the internal transcribed spacer (ITS) sequences, genetic structure and the chemical composition of essential oils of four populations belonging to Leutea elbursensis and Leutea petiolaris, two species endemic to northern Iran, are analyzed. Phylogenetic analysis based on the ITS data showed that all accessions of L. elbursensis forme...

Physalis divaricata (Solanaceae) is one of the most prevalent weeds in summer crops. Putrescine Nmethyltransferase (PMT) is a key enzyme in the biosynthesis of nicotine, tropane alkaloids atropine, scopolamine, cocaine, and calystegines. The present study set to compare PMT gene expression during different growth stages of Ph. divaricata using RT-q...

Wheat (Triticum aestivum L.) is the main food source in Iran. "Chamran" is one of the most widely cultivars of the Iranian wheats. Drought stress (DS) is the main limiting factor in the Iranian wheat agronomy. In this study we used RNA-Seq transcriptome technology to clarify the different aspects of the symbiotic relationship between "Chamran" whea...

The plantain (Plantago major L.; Plantagina- ceae) has a wide geographic distribution in temperate grasslands of the world. In Iran, they are mainly localized in margins of the summer springs, gardens and wetlands. In order to investigate the affinity of individuals based on morphological traits, plant material of 95 individuals belonging to 19 dif...

Dionysia revoluta Boiss. (Primulaceae), the most widespread species of the genus in Zagros Mountains of western Iran, is studied morphologically and genetically. Clustering analysis of morphological characters did not match the biogeography of the populations. Cluster analysis separated two subspieces of D. revoluta i.e. subsp. revoluta and subsp....

Phylogenetic relationship between 11 species belonging to Medicagoid Trigonella group from Iran were studied and compared with 12 species belonging to non Medicagoid Trigonella, Medicago, Melilotus and Trifolium species (Fabaceae) using internal transcribed spacer (ITS) sequences by using Baysian inference and maximum parsimony. The results indicat...

Inyod I, SassanarakitS, PayapanonA, Keawsompong S. 2017. Morphological characteristics and molecular identification of a wild Thai isolate of the tropical mushroom Hed Taen Rad (Macrocybe crassa). Biodiversitas 18: 221-228. Hed Taen Rad or Macrocybe crassa is a wild edible mushroom found in Thailand. It has a large fruiting body with a meaty textur...

Kuswantoro H. 2017. Genetic variability and heritability of acid-adaptive soybean promising lines. Biodiversitas 18: 378-382. Genetic variability and heritability are very important in a variety improvement. The high genetic diversity can increase the probability on obtaining a new superior variety, while heritability can accelerate the selection p...

The water distillated essential oil of Citruslimon collected from Ramsar, Province of Mazandaran, North of Iran collected in December 2013, was analyzed using gas chromatography (GC) and gas chromatography-mass spectroscopy (GC-MS). The yield of oil was 0.23% w/w. Twenty-one components representing 100% of the essential oil were characterized. Limo...

Tamarix L. with almost 54 species is the largest genus of the Tamaricaceae. This study was carried out on species of Tamarix that growing in Iran. Morphological characters were obtained for 23 species recognized by recent taxonomic treatments from Iran. In this study we use 10 characters to identify species of Tamarix that growing in Iran. For SEM...

Tamarix L. with almost 54 species is the largest genus of the Tamaricaceae. This study was carried out on species of Tamarix that growing in Iran. Morphological characters were obtained for 23 species recognized by recent taxonomic treatments from Iran. In this study we use 10 characters to identify species of Tamarix that growing in Iran. For SEM...

The genus Ononis, embraces more than 85 species worldwide. In the present study, materials of two subspecies of O. spinosa from different localities of Iran alongside some other native species of the genus were included in phylogenetic analyses. In addition, over 50 accessions were obtained from GenBank. In order to clarify the exact number of subs...

The genus Ononis, embraces more than 85 species worldwide. In the present study, materials of two subspecies of O. spinosa from different localities of Iran alongside some other native species of the genus were included in phylogenetic analyses. In addition, over 50 accessions were obtained from GenBank. In order to clarify the exact number of subs...

Dionysia Fenzl (Primulaceae) consists of more than 50 species, most of them endemic to the mountainous areas of SW Iran. Genetic structure of 200 individuals belonging to 40 populations of different Dionysia species from SW Iran was analyzed using Amplified Fragment Length Polymorphism (AFLP) fingerprint and DNA sequencing techniques. Our results s...

Abstract book of 23rd Symposium on ‘Biodiversity and Evolutionary Biology’ of the German Botanical Society September 8 – 11, 2016 in Munich, Germany. Ludwig-Maximilians-Universität München & The German Botanical Society

A synopsis of Cousinia sect. Pseudactinia is given. The section in its new circumscription includes five perennial species, i.e. C. amicorum, C. edmondsonii, C. glochidiata, C. oreodoxa, and a new species C. joharchii which is described from N slopes of Mt. Shahvar in province of Semnan (NE Iran). Cousinia apiculata is reduced as synonym to C. gloc...

A new species from the W part of the Iranian Zagros Mountains in Ilam province, Dionysia robusta (Primulaceae), is described, illustrated and compared with similar and related species. It differs from these relatives in leaf shape, length and density of glandular hairs, and shape of the calyx. The DNA sequence of the nuclear ribosomal ITS region of...

In the present study, morphology diversity and micromorphology of all Iranian Minuartia species belonging to two different subgenera (i.e. Minuartia subgen. Spergella and Minuartia subgen. Minuartia) were investigated. According to the latest results 22 species and one subspecies were detected for the country. The distribution map, identification k...