Fruit as diagnostic characteristic to recognize Brazilian species of Zornia (Leguminosae, Papilionoideae)

Phytotaxa ◽  
2015 ◽  
Vol 219 (1) ◽  
pp. 27 ◽  
Author(s):  
Ana Paula Fortuna Perez ◽  
Gwilym Peter Lewis ◽  
Rubens Teixeira Queiroz ◽  
Juliana Santos Silva ◽  
Ana Maria Goulart de Azevedo Tozzi ◽  
...  
Keyword(s):  
Morphological Character ◽  
Morphological Characteristics ◽  
Morphological Characters ◽  
Fruit Shape ◽  
Good Source ◽  
Brazilian Species ◽  
Species Complexes ◽  
Article Surface ◽  
Geographical Distribution Pattern ◽  
Scanning Electron

Articles of the lomentaceous fruits encountered in the thirty-six species of Brazilian Zornia species are described, illustrated and compared using scanning electron microscopy and stereomicroscopy. Macro-and micro-morphological characters of the fruit articles provide excellent diagnostic taxonomic characters (including fruit shape, fruit article surface, presence/absence of glands, presence/absence of bristles, and presence/absence of hairs) to distinguish among the Brazilian taxa. Results generally support the species recognised for Brazil although the micro-morphological characters have limited taxonomic value within some species complexes, in which taxa can be better differentiated using other morphological characteristics. The results of macro-morphological analyses show that the morphology of fruit articles is related to the geographical distribution pattern of each species and is a good source of morphological character to distinguish the species of Zornia. We present here an inedit identification key, based on the loment morphology, to distinguish the Brazilian species of Zornia.

scholarly journals STUDY OF THE CYTOLOGICAL AND MICRO-MORPHOLOGICAL CHARACTERISTICS OF SOME SPECIES OF THE GENUS EUPHORBIA L.BELONG TO EUPHORBIACEAE FAMILY , USING ELECTRON MICROSCOPE IN IRAQ

2020 ◽  
Vol 51 (5) ◽  
pp. 1394-1404
Author(s):  
Sulaiman & et al.
Keyword(s):  
Electron Microscope ◽  
Morphological Characteristics ◽  
Pollen Grains ◽  
Morphological Characters ◽  
Growing Seasons ◽  
Surface Configuration ◽  
Pollen Surface ◽  
Cytological Characteristics ◽  
Scanning Electron ◽  
Shape And Size

This study was aimed to investigate micro-morphological and cytological characteristics for sex species of Euphorbiaceae family in Baghdad during the two growing seasons 2018-2019 . The species are: Euphorbia granulate Forssk.,E.helioscopia L.,E. hirta L.,E. hypericifolia L., E. milli Des Moul .,E. puplus L. Which involved with morphological characters of pollen grains and seeds, as well the chromosomes number, and the study managed to count chromosome number for the above species sequentially:-n=11, n=21, n=9, n=16, n=14,18, n=7,8. The morphological characters of pollen grains surface has been studied by using scanning electron microscope (SEM), shape and size, polar and equatorial axes, spines length, dimensions of ora and colpi, and the ornamentations on pollen surface, and it has been observed that all the species are tri-zono-colporate, spinulose and spinate (echinated), and spinolophate fruite, and importance of the pollen grains in taxonomy. The study includes morphological characteristics of seeds  by using (SEM) In terms of size, shape, color, and appearance of the seed surface(configuration). It has been shown that the seeds are significantly different from species to another. Species help to isolate and classify, and through relying on these characteristics, classification limits could be set, whether at the level of species or genus within each family.

scholarly journals Macro and micro-morphological characteristics of Plantago seeds and its implication for species identification

2017 ◽  
Vol 8 ◽  
Author(s):  
Ashutosh KUMAR Verma ◽  
Neelam Gautam Kumar Avinash Bharti
Keyword(s):  
Electron Microscope ◽  
Cell Shape ◽  
Morphological Characteristics ◽  
Morphological Characters ◽  
Seed Morphology ◽  
Cavity Surface ◽  
Seed Shape ◽  
Surface Ornamentation ◽  
Seed Characters ◽  
Scanning Electron

<p>Seed morphology of five species of<em> Plantago</em> (<em>P</em><em>. psyllium, P.ovata, P. lanceolata, P. major</em> and <em>P. arenaria</em>) was examined under scanning electron microscope. Macro- and micro-morphological characters, including seed shape, colour, size, shape of cavity, surface ornamentation and epidermal cell shape are presented.  Marked difference among the species noted with respect of considered traits and a key for the identification of the investigated taxa based on seed characters is provided. </p><p> </p>

scholarly journals Pengelompokan Kultivar Ketumbar Berdasar Sifat Morfologi

2017 ◽  
Vol 10 (1) ◽  
pp. 32 ◽  
Author(s):  
Endang Hadipoentyanti ◽  
Sri Wahyuni
Keyword(s):  
Data Analysis ◽  
Morphological Character ◽  
Morphological Characters ◽  
Fruit Shape ◽  
Coriandrum Sativum ◽  
Annual Crop ◽  
The Third ◽  
Taxonomic Distance ◽  
Production Area ◽  
The Relationship

<p><strong>Abstract</strong></p><p>Coriander (Coriandrum sativum L.) is an annual crop, limitedly cultivated in the high land areas. Based on the fruit shape the plant could be groped into three types: globularsmall, globular-big, and ovoid. There were 13 accession numbers of coriander collected from production area in Indonesia or other countries. They were varied in fruit shape and some of morphological characters. To analyze the relationship among the accession based on morphological character, the plant was planted at Manoko, Lembang (1200 m asl). Morphological characters were observed from 10 plant and based on the resulted data, analysis of genetic resemblance were carried out using average taxonomic distance of dissimilarity with NTSYSpc-2.1. Results showed that the accession of coriander can be classified into four groups. The first group only consist of introduced cultivar from Japan, the second group consist of coriander collected from Sungaitarap, Padanglawas, Sumbar, Sungayang, Madiun, Irak, Thailand, and Mesir, where each introduced cultivar made an exclusive sub group. The third group are cultivar collected from Jember and Cipanas, while the fourth groups are cultivar collected from Kadipekso and Temanggung. Collected cultivars from nearby areas tended to belong to the same group.</p><p><strong>Abstrak</strong></p><p><strong>Abstrak</strong></p><p>Ketumbar (Coriandrum sativum L.) merupakan tanaman herba setahun, dan umumnya dibudidayakan secara terbatas di dataran tinggi. Berdasarkan bentuk buahnya, dapat dibedakan ke dalam tiga tipe, yaitu bentuk buah bulat kecil, bulat besar, dan lonjong. Hasil pengumpulan ketumbar dari beberapa sentra produksi maupun introduksi telah diperoleh sebanyak 13 nomor dengan penampakan buah yang bervariasi. Pada penelitian ini dilakukan pengelompokan koleksi ketumbar berdasarkan sifat morfologi. Benih ditanam di Manoko pada ketinggian tempat 1200 m dpl. Pengamatan morfologi dilakukan terhadap 10 tanaman contoh. Data morfologi dianalisis mengunakan metode jarak average taxonomic distance of dissimilarity dengan paket program NTSYSpc-2.1. Hasil analisis menunjukkan bahwa koleksi ketumbar terbagi ke dalam empat kelompok, yaitu kelompok I yang hanya terdiri atas kultivar asal Jepang. Kelompok II adalah kultivar asal Sungaitarap, Padanglawas, Sumbar, Sungayang, Irak, Thailand, Mesir, dan Madiun. Tiga kultivar introduksi membentuk subkelompok tersendiri. Kelompok III adalah kultivar asal Jember dan Cipanas, sedangkan kelompok IV adalah kultivar asal Kadipekso dan Temanggung. Kultivar yang dikoleksi dari daerah yang berdekatan cenderung membentuk kelompok yang sama</p>

scholarly journals Fruit morphology of the genus Pimpinella (Apiaceae) in Turkey

2018 ◽  
Vol 75 (2) ◽  
pp. 072
Author(s):  
Yeter Yeşil ◽  
Emine Akalın ◽  
Aşkın Akpulat ◽  
Cem Vural
Keyword(s):  
Electron Microscopy ◽  
Morphological Characters ◽  
Fruit Shape ◽  
Morphological Evidence ◽  
Fruit Morphology ◽  
Whole Plant ◽  
Surface Ornamentation ◽  
Phylogenetic Hypotheses ◽  
Fruit Surface ◽  
Scanning Electron

To explore if fruit morphology could aid in taxonomy of the genus Pimpinella L., we have undertaken a study of fruits from 26 Turkish taxa of Pimpinella using light and scanning electron microscopy—SEM—. A great deal of inter and intraspecific variation for both fruit shape and surface was observed. Fruit shapes of Turkish taxa of Pimpinella range from oblong-cylindrical to subglobose and indumentum when present can be strigose, hispid and may include hamate trichomes. Variation in fruit surface is also considerable and allows recognizing nine different ornamentation patterns. However, variation in shape, surface ornamentation and indumentum is not tightly associated since species with similar fruit shapes do not necessarily have similar surface ornamentation. To jointly analyse fruit morphology together with the most commonly used morphological characters of the whole plant and to compare morphological evidence with available phylogenetic hypotheses, a cluster analysis was also performed: the Turkish species of Pimpinella were clustered into two distinct groups, the second one subdivided in another two subgroups.

Seed morphology of the genus Scrophularia L. (Scrophulariaceae) from Turkey and its taxonomic implications

Phytotaxa ◽  
2020 ◽  
Vol 434 (1) ◽  
pp. 35-64
Author(s):  
FUNDA ÖZBEK ◽  
MEHMET ERKAN UZUNHİSARCIKLI ◽  
MURAT EKİCİ ◽  
EBRU DOĞAN GÜNER ◽  
NUR MÜNEVVER PINAR
Keyword(s):  
Electron Microscopy ◽  
Morphological Characteristics ◽  
Principal Component ◽  
Diagnostic Value ◽  
Morphological Characters ◽  
Seed Morphology ◽  
Seed Length ◽  
Taxonomic Implications ◽  
Seed Width ◽  
Scanning Electron

73 taxa of the genus Scrophularia (Scrophulariaceae) from Turkey have been investigated using light stereomicroscope (LM) and scanning electron microscopy (SEM) in order to describe their seed morphological characteristics and to evaluate the diagnostic value of these features as a contribution to the genus systematics. The seeds are oblong, ellipsoid, ovoid or obovoid in shape and light or dark brown, blackish-brown to black in colour. The seed length ranges from 0.41 to 2.04 mm and seed width from 0.24 to 1.33 mm. All investigated taxa have bireticulate-alveolate ornamentation with vesicles on the corners of secondary reticulum cells except of S. zuvandica. The alveoli are oblong, orbicular and linear with a size of 7.63–143.1 × 21.62–314.2 µm. Cluster analysis and principal component analysis have been used to determine the contribution of seed morphological characters to the taxa relationships. Numerical analysis has revealed that the seed size and the secondary reticulum properties have significant importance in taxonomy of the genus for distinguishing taxa from each other.

Linaria semialata and L. amethystea subsp. aedoi, two new taxa of L. sect. Supinae (Plantaginaceae) from Southeastern Iberian Peninsula

Phytotaxa ◽  
2020 ◽  
Vol 460 (3) ◽  
pp. 167-184
Author(s):  
JUAN F. JIMÉNEZ ◽  
DAVID LÓPEZ ◽  
JUAN B. VERA ◽  
JAIME GÜEMES ◽  
PEDRO SÁNCHEZ-GÓMEZ
Keyword(s):  
Principal Component Analysis ◽  
New Taxa ◽  
Morphological Character ◽  
Principal Component ◽  
Morphological Characters ◽  
Similar Species ◽  
Scanning Electron Micrographs ◽  
Linear Discriminant ◽  
Morphometric Analyses ◽  
Scanning Electron

Two new taxa of the genus Linaria are described, illustrated and compared, through a morphometric analysis, to morphologically similar species from L. sect. Supinae: L. amethystea, L. diffusa, L. intricata, and L. orbensis. A Principal Component Analysis and Linear Discriminant Analysis were carried out in order to find out which morphological characters were the most important to discriminate these species. Morphometric analyses revealed that discrimination of species were more related to their particular morphological character combinations than to a private character. Two taxa are described as new to science, by providing a detailed description, illustrations, scanning-electron micrographs and an identification key.

scholarly journals Pollen morphology of the native Rutaceae species from Argentina

2021 ◽  
Vol 9 (2) ◽  
pp. 282-292
Author(s):  
Silvina S. Garralla ◽  
Lilia R. Mautino
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Pollen Morphology ◽  
Morphological Characteristics ◽  
Morphological Characters ◽  
Pollen Grain ◽  
Large Size ◽  
Scanning Electron ◽  
Shape And Size

The pollen morphology of 13 native taxa of the Rutaceae from Argentina was studied under optical and scanning electron microscopy to provide new data that would allow delimiting these taxa. The species considered were Balfourodendron riedelianum, Esenbeckia densiflora, E. febrifuga, E grandiflora, Helietta apiculata, Pilocarpus pennatifolius, Zanthoxylum caribaeum, Z. coco, Z. fagara, Z. petiolare, Z. rhoifolium, Z. riedelianum and Zanthoxylum rigidum ssp. hasslerianum. The general morphological characteristics of the pollen grain of these species are: radiosymmetric, isopolar; small, medium or large size; 3-colporate or 4-colporate; colpus with costa colpi; semitectate (reticulate, striate reticulate or striate). Sculpture, shape and size are the main characters that allow differentiating the studied taxa. Morphological characters among the species are discussed and a species key is presented.

Comparative Analysis of Genetic and Morphological Variation within the Platanthera hyperborea Complex (Orchidaceae)

2020 ◽  
Vol 45 (4) ◽  
pp. 767-778
Author(s):  
Eranga Wettewa ◽  
Nick Bailey ◽  
Lisa E. Wallace
Keyword(s):  
North America ◽  
Diploid Species ◽  
Morphological Characters ◽  
Evolutionary Patterns ◽  
Founding Population ◽  
Multiple Origins ◽  
Geographic Structure ◽  
Species Complexes ◽  
Nuclear Its ◽  
Cryptic Taxa

Abstract—Species complexes present considerable problems for a working taxonomy due to the presence of intraspecific variation, hybridization, polyploidy, and phenotypic plasticity. Understanding evolutionary patterns using molecular markers can allow for a more thorough assessment of evolutionary lineages than traditional morphological markers. In this study, we evaluated genetic diversity and phylogenetic patterns among taxa of the Platanthera hyperborea (Orchidaceae) complex, which includes diploid (Platanthera aquilonis) and polyploid (Platanthera hyperborea, P. huronensis, and P. convallariifolia) taxa spanning North America, Greenland, Iceland, and Asia. We found that three floral morphological characters overlap among the polyploid taxa, but the diploid species has smaller flowers. DNA sequence variation in a plastid (rpL16 intron) and a nuclear (ITS) marker indicated that at least three diploid species have contributed to the genomes of the polyploid taxa, suggesting all are of allopolyploid origin. Platanthera convallariifolia is most like P. dilatata and P. stricta, whereas P. huronensis and P. hyperborea appear to have originated from crosses of P. dilatata and P. aquilonis. Platanthera huronensis, which is found across North America, has multiple origins and reciprocal maternal parentage from the diploid species. By contrast, P. hyperborea, restricted to Greenland and Iceland, appears to have originated from a small founding population of hybrids in which P. dilatata was the maternal parent. Geographic structure was found among polyploid forms in North America. The area of Manitoba, Canada appears to be a contact zone among geographically diverse forms from eastern and western North America. Given the geographic and genetic variation found, we recommend continued recognition of four green-flowered species within this complex, but caution that there may be additional cryptic taxa within North America.

Inheritance of Some Morphological Characteristics of Parental Lines in Mustard-Rape Hybrid

2020 ◽  
pp. 23-30
Keyword(s):  
First Generation ◽  
Agronomic Traits ◽  
Morphological Characteristics ◽  
Morphological Characters ◽  
Hybrid Plant ◽  
Distant Hybridization ◽  
Degree Of Dominance ◽  
Whole Plant ◽  
Row Width ◽  
The Difference

Distant hybridization is known to play an important role in expanding the gene pool of any crop. It is believed that the combination of different genomes in one nucleus, as a rule, is accompanied by the phenomenon of “genomic shock”, resulting in a variety of genetic and epigenetic changes. This provides a wealth of material for the selection of genotypes adapted to different environmental conditions. Interspecific hybrids in different combinations were obtained in the genus Brassica, however, until now, interest in distant hybridization in this genus has not died out, since such important crops as rapeseed and mustard demand an improvement of many important agronomic traits. The aim of this work was to study the degree of manifestation of morphological characters of a leaf, flower, and plant as a whole in the hybrid obtained by crossing of brown mustard of the variety Slavyanka and a collection specimen of spring rape. Seeds were sown in the spring of 2019 in a field with 30 cm row width. During the flowering period a number of morphological characters of a flower, leaf, and the whole plant were analyzed. Each parameter was evaluated with 10 plants. The degree of dominance in first-generation hybrid was calculated by the formula of Beil, Atkins (1965). The dominance coefficients were not determined in the case when the difference between the parental samples was insignificant. Differences between parental samples were determined by Student t-test. The level of heterosis was calculated according to the formula of Rasul et al (2002). In a mustard-rapeseed hybrid, the size of the leaves of the lower row was inherited by the type of rapeseed, which had larger leaves than mustard. The height of the hybrid plant was inherited by the type of mustard (hp = 1.32, Ht = 4.89%), and intermediate inheritance was observed for the length of the internodes (hp = -0.48). The size of the flower petals and sepals was inherited by the type of rapeseed, and significant heterosis was observed for the length of the pistil (Ht = 33.57%). The data obtained are of interest for understanding the interaction of genes of different genomes in the genus Brassica.

scholarly journals The relative taxonomic value of morphological characters in the genus <i>Nummulites</i> (Foraminiferida)

1992 ◽  
Vol 11 (2) ◽  
pp. 197-209 ◽  
Author(s):  
Andrew Racey
Keyword(s):  
Morphological Character ◽  
Morphological Characters ◽  
Species Discrimination ◽  
Evolutionary Trends ◽  
Ontogenetic Effects

Abstract. The main evolutionary trends in the nummulites are briefly summarised and the value of certain morphological characters in species discrimination are summarised. The degree of interdependence of each morphological character on all other characters is assessed and the characters are weighted in order of importance. Environmental and ontogenetic effects on each character are then reviewed and the characters reweighted in order of importance.

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