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

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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Infraspecific morphological and genetic variations of Ficus carica L. from Iran

Biologija ◽

10.6001/biologija.v65i3.4090 ◽

2019 ◽

Vol 65 (3) ◽

Author(s):

Mohammad Reza Zolfaghari ◽

Fahimeh Salimpour ◽

Fariba Sharifnia ◽

Maryam Peyvandi ◽

Sayeh Jafari Marandi

Keyword(s):

Genetic Diversity ◽

Morphological Traits ◽

Morphological Characteristics ◽

Ecological Factors ◽

Ficus Carica ◽

Upgma Tree ◽

Genetic Diversity And Structure ◽

Morphological Variables ◽

Cultivated Populations ◽

Different Parts

Ficus carica L. (Moraceae) is one of the most important crop plants widely cultivated in different parts of the world. Several wild or cultivated populations of it grow in various regions of Iran. In the current research, we evaluated morphological and molecular SSR methods in order to investigate infraspecific variations in this species and introduce possible phenotypes/genotypes among its populations. For this, 14 populations were selected from different parts of the country. We evaluated 27 qualitative and quantitative morphological traits of both reproductive and vegetative organs. The ANOVA test revealed significant variations for most of the quantitative variables; moreover, qualitative features differed among populations. Significant correlations were found between some morphological characteristics with ecological factors of habitats. According to the UPGMA tree, four morphotypes existed among these populations. CA-joined plot revealed that each group was identified by some morphological variables. In addition, parameters of genetic diversity varied among the studied populations, while the AMOVA test showed significant variations, most of which belonged to the variations within the population. According to the UPGMA tree, MDS and PCoA plots, the studied populations were divided into four distinct genotypes. In addition, the UPGMA tree based on Nei genetic diversity and Structure analyses confirmed these groups. Three groups were monotypic and the fourth was composed of eleven populations. Patterns of population clustering based on the morphological traits were not similar to those of SSR data. Therefore we concluded that environmental factors had strong effects on the population’s phenotype and genotypes were not recognized by their phenotypes.

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Biogeography of the cosmopolitan terrestrial diatom Hantzschia amphioxys sensu lato based on molecular and morphological data

Scientific Reports ◽

10.1038/s41598-021-82092-9 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Yevhen Maltsev ◽

Svetlana Maltseva ◽

John Patrick Kociolek ◽

Regine Jahn ◽

Maxim Kulikovskiy

Keyword(s):

18S Rdna ◽

Morphological Variability ◽

Morphological Characteristics ◽

Lower Number ◽

Morphological Data ◽

Sympatric Populations ◽

Infraspecific Taxa ◽

Different Populations ◽

Geographical Locations ◽

Different Parts

AbstractUntil now, the reported diversity of representatives from the genus Hantzschia inhabiting soils from different parts of Eurasia was limited to the few species H. amphioxys, H. elongata and H. vivax and some of their infraspecific taxa. We have studied the morphology, ultrastructure and phylogeny of 25 soil diatom strains, which according to published description would be assigned to “H. amphioxys sensu lato” using 18S rDNA, 28S rDNA and rbcL. We show that strains are made up of seven different species of Hantzschia, including five new for science. Five strains were identified as H. abundans. This species has a slight curvature of the raphe near its external proximal ends. Four of the examined strains were represented by different populations of H. amphioxys and their morphological characteristics fully correspond with its isolectotype and epitype. The main specific features of this species include 21–25 striae in 10 μm, 6–11 fibulae in 10 μm, 40–50 areolae in 10 μm and internal proximal raphe endings bent in opposite directions. H. attractiva sp. nov., H. belgica sp. nov., H. parva sp. nov., H. pseudomongolica sp. nov. and H. stepposa sp. nov. were described based on differences in the shape of the valves, significant differences in dimensions, a lower number of striae and areolae in 10 μm and the degree and direction of deflection of the internal central raphe endings. Based on the study of the morphological variability and phylogeny of soil Hantzschia-species from different geographical locations we conclude that while some species such as H. amphioxys are truly cosmopolitan in their distributions, some sympatric populations of pseudocryptic taxa exist in the Holarctic.

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VARIATION IN ANAL FIN RAY COUNT OF THE REDSIDE SHINER RICHARDSONIUS BALTEATUS (RICHARDSON)

Canadian Journal of Zoology ◽

10.1139/z53-019 ◽

1953 ◽

Vol 31 (3) ◽

pp. 211-225 ◽

Cited By ~ 11

Author(s):

C. C. Lindsey

Keyword(s):

Morphological Characteristics ◽

Introduced Populations ◽

Fin Ray ◽

Parent Stock ◽

Different Populations ◽

The Mean ◽

Redside Shiner ◽

Richardsonius Balteatus ◽

Bodies Of Water ◽

Different Parts

Anal fin rays were counted on 4766 specimens of Richardsonius balteatus from 61 localities in British Columbia. Individual counts varied from 10 to 21, and mean counts of different populations varied from 12.06 to 17.51. Significant differences in counts occurred between different bodies of water, between recently introduced populations and their parent stock, between different parts of the same lake, and between different year classes. Ray counts tended to be higher amongst females in populations with high over-all means, and higher amongst males in populations with low over-all means. A positive correlation was demonstrated between water temperatures recorded in the vicinity of developing fry and the mean numbers of anal rays produced. Within each latitudinal zone a similar correlation occurred between mean ray count and average air temperature during the spawning season, but data on 109 means of populations in U.S.A. and Canada indicated a tendency, probably genetic, towards production, at equivalent temperature, of higher ray count towards the northern end of the range. Loose correlations between anal ray count and certain other morphological characteristics suggest that these may be dependent on more or less common environmental factors but are not linked by direct causality.

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A description of four Filaria loa from the same patient

Parasitology ◽

10.1017/s0031182000002390 ◽

1911 ◽

Vol 4 (1) ◽

pp. 7-18 ◽

Cited By ~ 1

Author(s):

O. V. Huffman ◽

Wm B. Wherry

Keyword(s):

Large Scale ◽

Morphological Characteristics ◽

Longitudinal Section ◽

Different Parts

A comparison of the descriptions of the morphological characteristics of Filaria loa by previous authors shows differences which are explained by the study of our uninjured specimens. We have prepared a table (q.v.) which shows the results of the work of various observers together with our own. We believe that most of the drawings so far published are somewhat misleading; we have, therefore, drawn the essential parts as seen through the microscope with an entire diameter and a portion of a longitudinal section in focus. The drawings are not composite or schematic but have been made on a large scale with accuracy in the measurements so as to represent the different parts in proper proportion (see Plate).

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Species relationship and genetic diversity in some Iranian Lamium L. species using ISSR markers

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d200724 ◽

2019 ◽

Vol 20 (7) ◽

Author(s):

FATEMEH AZIMISHAD ◽

MASOUD SHEIDAI ◽

SAYED MEHDI TALEBI ◽

ZAHRA NOORMOHAMMADI

Keyword(s):

Genetic Diversity ◽

High Efficiency ◽

Isolation By Distance ◽

Leaf Shape ◽

Morphological Characteristics ◽

Molecular Data ◽

Issr Markers ◽

Mantel Test ◽

Species Relationships ◽

Species Relationship

Abstract. Azimishad F, Sheidai M, Talebi SM, Noormohammadi Z. 2019. Species relationship and genetic diversity in some Iranian Lamium L. species using ISSR markers. Biodiversitas 20: 1963-1972. Lamium is a widespread and taxonomically complex genus of Lamiaceae which comprises of 16-38 species. This genus is represented in Iran by nine species. In the present study, we used morphological and molecular (ISSR, Cp DNA, and nrITS) data to evaluate species relationships, genetic diversity and population genetic structure of the genus. 27 morphological characteristics, including 13 qualitative and 14 quantitative, and ten ISSR markers were used for morphological and genetical evaluation of 73 accessions from eight taxa. In general, species relationships obtained from morphological and molecular data were largely congruent. In the morphological study, characteristics like the life form, leaf shape, absence/existence of bracts and shape of corolla, were distinctive traits and we did not encounter intermediate forms. Our findings indicated a very high efficiency of the ISSR markers in the identification and delimitation of Lamium species. These results confirmed the placement of L. galeobdolon in the genus Lamium and segregation of L. purpureum and L. garganicum in section Lamium. AMOVA analysis revealed that the species of this genus are genetically differentiated. Nm analysis showed very low value of gene flow among the studied species and mantel test indicated isolation by distance occurred among them.

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Evaluation of Bent Trees in Juvenile Teak (Tectona grandis L.f.) Plantations in Costa Rica: Effects on Tree Morphology and Wood Properties

10.20944/preprints201703.0071.v1 ◽

2017 ◽

Author(s):

Nancy Guzmán ◽

Róger Moya ◽

Olmán Murillo

Keyword(s):

Costa Rica ◽

Modulus Of Elasticity ◽

Morphological Characteristics ◽

Tectona Grandis ◽

Wood Properties ◽

Early Years ◽

Chemical Compositions ◽

Variable Diameter ◽

Morphological Variables ◽

The Relationship

Bent trees have been observed during the early years in juvenile plantations (less than 5 years-old) of Tectona grandis in Costa Rica. The relationship between bending and the morphological characteristics of the trees was explored. An evaluation of bent trees was conducted in six juvenile plantations (8, 17, 27, 28, 31, and 54 months old) of Tectona grandis. Site 1 with 8-month-old plantations did not display any relationship with any tree morphological variable (diameter, height, and crown weight of tree), whereas for the sites 2, 3, and 4 with 17-, 27-, and 28-month-old plantations, respectively, all the tree morphological variables were statistically correlated with the bent trees. A multiple regression analysis showed that the most influential variables were height to crown base, crown weight, diameter, and total height of the tree. An evaluation of the bending risk factor (RF) was correlated with the height to crown base, crown weight, and form factor. The modulus of elasticity and chemical compositions of bent trees differed from those of straight trees. The causes of tree bending are complex, involving, among other factors, the morphology of the trees, plantation conditions, and other factors specific to the xylem, such as the specific gravity, modulus of elasticity, and presence of calcium and magnesium in the wood.

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Two New Species and a New Record of Astragalus sect. Ammodendron (Fabaceae) from Northeastern Iran

Novon A Journal for Botanical Nomenclature ◽

10.3417/2020494 ◽

2020 ◽

Vol 28 (4) ◽

pp. 263-270

Author(s):

Yasamin Nasseh ◽

Mohammad Reza Joharchi ◽

Farrokh Ghahremaninejad

Keyword(s):

New Species ◽

New Record ◽

Morphological Characteristics ◽

First Record ◽

Flora Of Iran ◽

Distribution Maps ◽

Two New Species ◽

Astragalus Sect

Following study of specimens belonging to Astragalus L. sect. Ammodendron Bunge collected from northeastern Iran, two new species and a new record for Iran are described and reported. Astragalus ayatollahii Nasseh, Joharchi & F. Ghahrem. differs from A. biarjmandicus Podlech & Zarre and A. inchebroonensis Maassoumi in having longer racemes with more flowers, only white trichomes on the calyx, and one pair of leaflets in the lower leaves and two pairs in the upper leaves. Astragalus gonabadensis Nasseh, Joharchi & F. Ghahrem. differs from A. baharensis F. Ghahrem. and A. macrobotrys Bunge in characters of the calyx and legume trichomes. Descriptions, distribution maps, and comparative tables of morphological characteristics for these taxa are presented. In addition, the first record of A. excedens Popov & Kult. in the flora of Iran is reported.

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Morphological Diversity of Farmers’ and Improved Potato (Solanum tuberosum) Cultivars Growing in Eritrea

Journal of Plant Studies ◽

10.5539/jps.v5n2p63 ◽

2016 ◽

Vol 5 (2) ◽

pp. 63 ◽

Cited By ~ 1

Author(s):

Biniam M. Ghebreslassie ◽

S. M. Githiri ◽

Tadesse M. ◽

Remmy W. Kasili

Keyword(s):

Solanum Tuberosum ◽

Block Design ◽

Morphological Characteristics ◽

Morphological Diversity ◽

Pca Analysis ◽

Morphological Descriptors ◽

Tuber Production ◽

Randomized Complete Block Design ◽

Total Variability ◽

High Yields

Farmers’ and improved potato (Solanum tuberosum L.) cultivars growing in Eritrea are main sources of food and income to many growers. The current study was proposed to characterize 17 farmers’ and 4 imported cultivars of potato using 33 morphological descriptors. Planting was done in two geographically distinct locations, HAC and Asmara, Eritrea. The experiment was laid out in a randomized complete block design with three replications having 18 plants per plot. Plants grown at HAC emerged early (24.52 days) and reach maturity (94.84 days) while at Asmara it took 43.77 and 123.59 days, respectively. However, yield was higher in Asmara (0.49 kg/plant) compared to HAC (0.37 kg/plant). An accession having many and longer stems was associated with more tuber production, but inversely related to yield. Similarly, accessions with higher stem thickness and tuber size were associated with high yields. The PCA analysis indicated that the first four components explained about 85% of the total variability among the studied materials. The PCA clustered the materials in to four main groups (GI, GII, GIII, GIV) mainly explained by flowering patterns and yield related descriptors. The work has provided useful information on morphological characteristics of the farmer’s potato to avoid duplication of resources and identify promising materials for future breeding program.

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Taxonomic reliability of leaf and fruit morphological characteristics of the Pyrus L. taxa in Slovakia

Horticultural Science ◽

10.17221/3869-hortsci ◽

2011 ◽

Vol 30 (No. 3) ◽

pp. 98-107 ◽

Cited By ~ 8

Author(s):

V. Paganová

Keyword(s):

Leaf Blade ◽

Leaf Shape ◽

Morphological Characteristics ◽

Fruit Shape ◽

Leaf Length ◽

Leaf Petiole ◽

Quantitative Characteristics ◽

Exact Identification ◽

Pyrus Pyraster

A population of 1,149 pear individuals from Slovakia is analysed according to their morphological characteristics of fruits and leaves. Three basic taxa were identified – Pyrus pyraster, Pyrus amphigenea and Pyrus nivalis. Qualitative traits (shape of leaf blade, fruit shape, type of leaf or fruit base, etc.) allowed the exact identification of a particular taxon only in some cases. Quantitative characteristics of leaves proved to be more suitable for the identification of analysed taxa. Statistically significant differences were found between all studied taxa in the values of leaf length and width, and also in the values of relative characteristics that described the leaf shape. Exceptionally the length of leaf petiole had very variable values (Sx% = 25.70–29.75%), therefore it was impossible to classify the species according to this character. Generally, fruit shapes and dimensions are less representative for taxonomy use although significant differences between all studied taxa were found in the values of fruit length. The correct taxonomic classification of pears cannot be done according to one characteristic. It is important to consider a few of them (shape and length of leaf blade or its slenderness, shape quotients and also the shape and length of fruits) for the appropriate classification of pear individuals.

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Infraspecific morphological variations of Salvia limbata in Iran

Acta Biologica Sibirica ◽

10.14258/abs.v5.i1.5209 ◽

2019 ◽

Vol 5 (1) ◽

pp. 113-121 ◽

Cited By ~ 1

Author(s):

S.M. Talebi ◽

P. Yadegari ◽

S. Behzadpour ◽

A. V. Matsyura

Keyword(s):

Natural Selection ◽

Morphological Traits ◽

Morphological Difference ◽

Morphological Characteristics ◽

Population Data ◽

Morphological Variations ◽

Upgma Tree ◽

Diverse Area ◽

Different Populations ◽

Different Parts

Salvia limbata is an aromatic herb of Lamiaceae, which distributed in different parts of Iran. Studies have revealed that this species has several benefit compounds for human health. In this study, we investigated infra‒specific morphological difference in this species. In total, 21 inflorescence morphological features were evaluated in eight populations; ten individuals were evaluated per each population. Data were analysed using SPSS and MVSP softwares. Morphological traits highly differed among the studied populations and ANOVA test revealed significant differences among most of them. According to UPGMA tree, PCA and PCO plots of morphological characteristics, we reported four distinct phenotypes among the studied populations. CA. Joined plot revealed each of these group were characterized by special traits, which were useful in identification of them. Two phenotypes were monotypic, while the rest were composed of two to four populations. This species has a relative large geographical distribution, the distribution of its populations in diverse area will prevent the focus of natural selection in a given direct. Therefore different phenotypes were found in its different populations.

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