Biosystematic Study in Some Dracocephalum Species (Lamiaceae) Based on Morphology and Anatomy in Iran

2021 ◽  
Vol 63 (3-4) ◽  
pp. 391-400
Author(s):  
F. Koohdar ◽  
M. Sheidai
Keyword(s):  
Northern Hemisphere ◽  
Species Delimitation ◽  
Flora Of Iran ◽  
Species Relationship ◽  
Biosystematic Study ◽  
Anatomic Results ◽  
Anatomical Characters ◽  
Perennial Herbs

The genus Dracocephalum L. (Lamiaceae) with about 60 to 70 species is a genus in the sub-tribe Nepetinae, tribe Mentheae of Lamiaceae family, native to temperate regions of the Northern Hemisphere. They are mostly perennial herbs, and rarely annual. Flora Iranica reports 8 Dracocephalum species and the Flora of Iran reports 10 Dracocephalum species in Iran out of which, 4 species are endemic. We collected 7 Dracocephalum species and studied species delimitation and species relationship by morphometric and anatomic results. The species were efficiently delimited by morphological and anatomical characters. Morphological and anatomical characters revealed closer affinity between D. moldavica and D. subcapitatum and D. thymiflorum were placed with distance from these species.

scholarly journals Integrative taxonomy reveals a cryptic species of the nudibranch genus Polycera (Polyceridae) in European waters

2020 ◽  
Vol 100 (5) ◽  
pp. 733-752
Author(s):  
Cecilie Gotaas Sørensen ◽  
Cessa Rauch ◽  
Marta Pola ◽  
Manuel António E. Malaquias
Keyword(s):  
Species Delimitation ◽  
Molecular Phylogenetics ◽  
Mitochondrial Gene ◽  
Haplotype Network ◽  
Integrative Taxonomy ◽  
Geographic Range ◽  
Yellow Orange ◽  
Anatomical Characters ◽  
Taxonomic Approach ◽  
Barcode Gap

AbstractThis work aimed to test whether the colour variability featured by the European nudibranch Polycera quadrilineata is consistent with the concept of a single polychromatic species or may hide multiple lineages. Samples from across the geographic range of P. quadrilineata together with representatives from worldwide species with a focus on Atlantic diversity, were gathered and studied using an integrative taxonomic approach. Morpho-anatomical characters were investigated by light and scanning electron microscopy. Bayesian molecular phylogenetics using MrBayes, the Automatic Barcode Gap Discovery species delimitation method, and haplotype network analysis using the PopArt software were employed to help delimit species using the mitochondrial gene cytochrome c oxidase subunit I (COI). The results supported the existence of a second species, here described and named Polycera norvegica sp. nov., only known from Norway where it is sympatric with P. quadrilineata. The COI uncorrected p-genetic distance between the two species was estimated at 9.6–12.4%. Polycera norvegica sp. nov. differs by exhibiting a black dotted or patchy dotted pattern occasionally with more or less defined orange/brown patches, but never black continuous or dashed stripes as in P. quadrilineata. The two species share a common colouration with a whitish base and yellow/orange tubercles. Anatomically, P. norvegica sp. nov. has a weaker labial cuticle, a smaller radula with fewer rows, and only four marginal teeth, a reproductive system with a single lobed bursa copulatrix, shorter reproductive ducts, and a penis armed with two kinds of spines: needle-like and hook-shaped penile spines.

scholarly journals Species delimitation and relationship in Crocus L. (Iridaceae)

2018 ◽  
Vol 77 (1) ◽  
pp. 10-17 ◽  
Author(s):  
Masoud Sheidai ◽  
Melica Tabasi ◽  
Mohammad-Reza Mehrabian ◽  
Fahimeh Koohdar ◽  
Somayeh Ghasemzadeh-Baraki ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Species Delimitation ◽  
Inter Simple Sequence Repeat ◽  
Issr Markers ◽  
Specific Gene ◽  
Data Sets ◽  
Species Relationship ◽  
Nj Tree ◽  
High Degree ◽  
Issr Molecular Markers

AbstractThe genusCrocusL. (Iridaceae) is monophyletic and contains about 100 species throughout the world.Crocusspecies have horticultural, medicinal and pharmacological importance. Saffron is the dried styles ofC. sativusand is one of the world’s most expensive spices by weight. Controversy exits about the taxonomy of the genus and the species relationship. Exploring genetic diversity and inter-specific cross-ability are important tasks for conservation of wild taxa and for breeding of cultivatedC. sativus. The present study was performed to study genetic variability and population structure in fiveCrocusL. species includingCrocus almehensisBrickell & Mathew,C. caspiusFischer & Meyer,C. speciosusMarschall von Biberstein,C. haussknechtiiBoissier, andC. sativusL. by inter simple sequence repeat (ISSR) molecular markers. We also used published internal transcribed spacer (ITS) sequences to study species relationship and compare the results with ISSR data. The results revealed a high degree of genetic variability both within and among the studied species. Neighbor joining (NJ) tree and network analysis revealed that ISSR markers are useful inCrocusspecies delimitation. Population fragmentation occurred inC. caspiusandC. sativus. Both ISSR and sequenced based analyses separatedC. sativusfrom the other studied species. Close genetic affinity ofC. sativusandC. pallisiiand inter-specific gene flow was supported by both data sets.

scholarly journals Species delimitation and genetic diversity analysis in Salvia with the use of ISSR molecular markers

2016 ◽  
Vol 75 (1) ◽  
pp. 45-52 ◽  
Author(s):  
Masoumeh Safaei ◽  
Masoud Sheidai ◽  
Behnaz Alijanpoor ◽  
Zahra Noormohammadi
Keyword(s):  
Molecular Markers ◽  
Genetic Variability ◽  
Species Delimitation ◽  
Morphological Characters ◽  
Mantel Test ◽  
Species Relationship ◽  
Inter Simple Sequence Repeats ◽  
Alborz Mountain ◽  
High Degree ◽  
Issr Molecular Markers

AbstractThirty-nine plant specimens of six Salvia species were collected from different localities of the Alborz mountain region in Iran and studied for morphological and genetic variability and species relationship. Inter simple sequence repeats (ISSR) molecular markers showed a high degree of within-species and interspecific genetic variability in Salvia. Analysis of molecular variance and Hickory tests showed significant molecular difference among the studied populations. A principal coordinate analysis plot of morphological characters grouped the species into two distinct groups, supporting their taxonomic treatment. This was partly supported by ISSR networking. The Mantel test did not show a correlation between genetic distance and the geographical distance of the studied populations. STRUCTURE and reticulation analyses revealed some degree of gene fl ow among the species. The present study showed that ISSR molecular markers could be used in Salvia species delimitation along with morphological study.

scholarly journals Blue mussels of the Mytilus edulis species complex from South America: The application of species delimitation models to DNA sequence variation

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0256961
Author(s):  
Pablo A. Oyarzún ◽  
Jorge E. Toro ◽  
José J. Nuñez ◽  
Elkin Y. Suárez-Villota ◽  
Jonathan P. A. Gardner
Keyword(s):  
South America ◽  
Mytilus Edulis ◽  
Northern Hemisphere ◽  
Species Delimitation ◽  
Species Complex ◽  
Sequence Variation ◽  
Nuclear Gene ◽  
Falkland Islands ◽  
Blue Mussels ◽  
Mitochondrial Locus

Smooth-shelled blue mussels, Mytilus spp., have a worldwide antitropical distribution and are ecologically and economically important. Mussels of the Mytilus edulis species complex have been the focus of numerous taxonomic and biogeographical studies, in particular in the Northern hemisphere, but the taxonomic classification of mussels from South America remains unclear. The present study analysed 348 mussels from 20 sites in Argentina, Chile, Uruguay and the Falkland Islands on the Atlantic and Pacific coasts of South America. We sequenced two mitochondrial locus, Cytochrome c Oxidase subunit I (625 bp) and 16S rDNA (443 bp), and one nuclear gene, ribosomal 18S rDNA (1770 bp). Mitochondrial and nuclear loci were analysed separately and in combination using maximum likelihood and Bayesian inference methods to identify the combination of the most informative dataset and model. Species delimitation using five different models (GMYC single, bGMYC, PTP, bPTP and BPP) revealed that the Mytilus edulis complex in South America is represented by three species: native M. chilensis, M. edulis, and introduced Northern Hemisphere M. galloprovincialis. However, all models failed to delimit the putative species Mytilus platensis. In contrast, however, broad spatial scale genetic structure in South America using Geneland software to analyse COI sequence variation revealed a group of native mussels (putatively M. platensis) in central Argentina and the Falkland Islands. We discuss the scope of species delimitation methods and the use of nuclear and mitochondrial genetic data to the recognition of species within the Mytilus edulis complex at regional and global scales.

Cutandia rigescens (Poaceae) a new species to the flora of Iran: distribution, taxonomy and ecology

Phytotaxa ◽  
2019 ◽  
Vol 419 (3) ◽  
pp. 287-300
Author(s):  
SAMEREH TIRGAN ◽  
ALIREZA NAQINEZHAD ◽  
ZEINAB HOSEINZADEH
Keyword(s):  
Cross Section ◽  
Sand Dunes ◽  
Vascular Bundles ◽  
Leaf Epidermis ◽  
Distribution Map ◽  
Flora Of Iran ◽  
The Caspian Sea ◽  
Anatomical Characters ◽  
First Time ◽  
A New Species

During a revision of the genera Cutandia and Catapodium in Iran (Poaceae: subtribe Parapholiinae), the occurrence of Cutandia rigescens was confirmed for the first time on sand dunes along the southern shore of the Caspian Sea in the northern part of the country. Twenty-five important morphological and anatomical characters were examined in an attempt to separate this species from Cutandia dichotoma, C. memphitica and Catapodium rigidum, similar taxa already recorded from Iran. In addition to the morphology of the glume, lemma and palea, the most diagnostic characters proved to be: size and shape of long cells in the intercostal zone of leaf epidermis, size of short cells and long cells in the costal zone of the leaf epidermis, size of angular prickles in the leaf epidermis, number and size of vascular bundles in a cross-section of the culm, the presence or absence of parenchymatous cells in the center of the culm and number of florets. Distribution map for Iran, together with vegetation data were presented for all four species.

Two new foliicolous species of Strigula (Strigulaceae, Strigulales) in Korea offer insight in phorophyte-dependent variation of thallus morphology

Phytotaxa ◽  
2020 ◽  
Vol 443 (1) ◽  
pp. 1-12 ◽  
Author(s):  
JUNG-JAE WOO ◽  
ROBERT LÜCKING ◽  
SEUNG-YOON OH ◽  
YONG-CHULL JEUN ◽  
JAE-SEOUN HUR
Keyword(s):  
South Korea ◽  
Detailed Analysis ◽  
Species Delimitation ◽  
Molecular Data ◽  
Its Sequences ◽  
Combined Analysis ◽  
Foliicolous Lichens ◽  
Anatomical Characters ◽  
Abundant Genus ◽  
Shed Light

Foliicolous lichens grow on the surface of living leaves in tropical and subtropical forests. Compared to a large number of species of foliicolous lichens reported from other regions in tropical and subtropical Asia, only six species of the otherwise abundant genus Strigula have been registered from South Korea so far. Three of these, morphologically identified as S. concreta, S. macrocarpa, and S. smaragdula, had previously been shown to share near-identical ITS sequences, casting doubt about the usefulness of this marker for species delimitation in the genus Strigula. To shed light on this conundrum, we surveyed the diversity of the genus Strigula in the Gotjawal forest area on Jeju Island south of mainland Korea, where the climate and vegetation are suitable for foliicolous lichens. As the result of a combined analysis of phenotype and molecular data of the ITS fungal barcoding marker, we found that material morphologically similar to known species formed two strongly supported clades, representing two species new to science, S. depressa Woo, Lücking & Hur sp. nov. and S. multiformis Woo, Lücking & Hur sp. nov., which are described herein. Strigula multiformis included the four previously sequenced specimens identified as S. concreta, S. macrocarpa, and S. smaragdula. A detailed analysis of morphological and anatomical characters revealed that all specimens of S. multiformis were anatomically uniform but varied in thallus morphology, mostly resembling S. smaragdula but with some forms similar to S. concreta and S. macrocarpa, explaining the previous misidentifications. This variation was found to be driven by leaf characters of the phorophyte species, as these apparently influence the morphology of the subcuticular thalli.

scholarly journals A new species of the lichenised genus Anamylopsora (Baeomycetaceae, Baeomycetales) from Tengger Desert of China

MycoKeys ◽  
2018 ◽  
Vol 41 ◽  
pp. 107-118
Author(s):  
Ya-Bo Zuo ◽  
Da-Le Liu ◽  
Cui-Xin Li ◽  
Yu-Hui Chen ◽  
Xin-Li Wei
Keyword(s):  
New Species ◽  
Northern Hemisphere ◽  
Species Delimitation ◽  
Single Species ◽  
Its Sequences ◽  
Arid Areas ◽  
Nrdna Its ◽  
Tengger Desert ◽  
A New Species

The monotypic lichenised genus Anamylopsora (Baeomycetaceae, Baeomycetales), with its single species A.pulcherrima, is distributed in the arid areas of the Northern Hemisphere, including China. In this paper, we introduce another species new to science, Anamylopsorapruinosa. The new species is characterised by a densely pruinose upper surface, abundantly thick and strong rhizines and terricolous habitat. It is also strongly supported by the phylogenetic and species delimitation analyses based on nrDNA ITS sequences, in which A.pruinosa forms well-supported clade separated from A.pulcherrima.

New insights into the species diversity of Bartramia Hedw. (Bryophyta) in Antarctica

2019 ◽  
Vol 31 (4) ◽  
pp. 208-215 ◽  
Author(s):  
Paulo E.A.S. Câmara ◽  
Abel E.R. Soares ◽  
Diego Knop Henriques ◽  
Denilson Fernandes Peralta ◽  
Juçara Bordin ◽  
...  
Keyword(s):  
Species Diversity ◽  
Northern Hemisphere ◽  
Species Delimitation ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Separate Species ◽  
F Region ◽  
Livingston Island ◽  
Molecular Phylogenetic ◽  
South Shetlands

AbstractIn Antarctica, the genus Bartramia has been restricted to a single polymorphic species, B. patens. Its status as a separate species or a subspecies of the Northern Hemisphere B. ithyphylla was debated. In the present paper, we combine analyses of chloroplast (trnS–rps4–trnT–trnL–trnF region) and nuclear ITS sequences with a reinvestigation of morphological characteristics to infer the identity of Antarctic Bartramia. Phylogenetic and Automatic Barcode Gap Discovery (ABGD) species delimitation analyses indicate that the species diversity of Bartramia in Antarctica has been underestimated, since two species were identified, both belonging to Bartramia sect. Pyridium. Of these, B. subsymmetrica is a new record of the species for Antarctica, as it has previously only been recorded from Livingston Island, South Shetlands. The other species is B. patens, which is separated from B. ithyphylla by newly inferred morphological characteristics and is a sister species to the latter in the molecular phylogenetic analyses. Consequently, we consider B. ithyphylla to be a Northern Hemisphere instead of a bipolar species. The suggested conspecificity of both taxa into one species in the ABGD analysis is considered to result from overlumping by this species delimitation method. The delimitation of the three species of section Bartramia (B. halleriana, B. mossmaniana and B. pomiformis) and the circumscription of the genus Bartramia are discussed.

scholarly journals Analysis of nutlet morphological characteristics of some Iranian Ajuga L. taxa

2019 ◽  
Vol 20 (10) ◽  
Author(s):  
Sayed Mehdi Talebi ◽  
RAHELEH TABARIPOUR ◽  
MAJID ESKANDARI
Keyword(s):  
Morphological Characteristics ◽  
Pca Analysis ◽  
Flora Of Iran ◽  
Species Relationship ◽  
Upgma Dendrogram ◽  
Infraspecific Taxa ◽  
Quantitative Characteristics ◽  
Morphological Variables ◽  
Spss Software ◽  
Different Parts

Abstract. Talebi SM, Tabaripour R, Eskandari M. 2019. Analysis of nutlet morphological characteristics of some Iranian Ajuga L. taxa. Biodiversitas 20: 2833-2840. Ajuga is one of the problematic Lamiaceae genera, which naturally grows in different parts of Iran. There are many discussions about infrageneric and infraspecific classifications of the genus and several synonyms were definite for its taxa. In the current study, we evaluated nutlet morphological characteristics from six Iranian taxa of the genus using Scanning Electron Microscopy (SEM) and Light microscopy (LM). In total, thirteen (four qualitative and nine quantitative) nutlet morphological variables were investigated, and the obtained data were analyzed using MVSP and SPSS software. Quantitative nutlet features varied among the studied taxa and ANOVA test revealed significant variations (P <0.01) for most of them. Moreover, PCA analysis showed some characteristics made more than 60% of variations. Some quantitative characteristics like nutlet and ventral sculpturing shapes were nearly stable among the taxa. But dorsal sculpturing shape and existence of exocarp cell indumentum highly varied among the taxa and could be used as distinguishing traits for identification of taxa. The studied taxa were divided into four groups in UPGMA dendrogram and also PCA and PCO plots of the nutlet features. CA. Joined plot revealed that each group had specific nutlet characteristic (s). Taxa arrangements were not similar to those have been definite for them in Flora Iranica and Flora of Iran. Furthermore, some infraspecific taxa must be redefinite. It is advised to use complementary molecular studies to better clearing species relationship, taxa position and rank in the genus.

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