scholarly journals Morphological Characterization of High Grain Iron and Zinc Concentration Bio-fortified lentil (Lens culinaris Medikus subsp. culinaris) in Nepal

2021 ◽  
Vol 6 (5) ◽  
Author(s):  
Darai R ◽  
◽  
Sarker A ◽  
Pandey MP ◽  
Agrawal SK ◽  
...  
Keyword(s):  
Lens Culinaris ◽  
Cropping System ◽  
Morphological Characters ◽  
Morphological Characterization ◽  
Morphological Markers ◽  
Genetic Purity ◽  
Leaf Pubescence ◽  
Morphological Variations ◽  
Germplasm Collections ◽  
Genetic Level

Lentil (Lens culinaris Medikus subsp. culinaris) is the wonderful, most popular & preferred food legume of Nepalese people and commonly grown in the rice and maize based cropping system. Morphological characters have been frequently used in order to know the diversity in germplasm collections. The main objectives of the study were to characterize the bio-fortified lentil accessions using morphological markers and select the DUS accession for using targeted the best utilization in hybridization program. Plant breeders can use these morphological variations to make decision regarding the choice for selecting superior genotypes for improvement or to be utilized as parents for the development of future cultivars through hybridization. Furthermore, important morphological markers like, plant type, foliage color, testa color, testa pattern and cotyledon colors can also be used for testing hybridity and keeping genetic purity at genetic level. The information obtained by the identification keys at seed and plant levels may be useful for discrimination and verification of varieties, hybridity testing and maintenance of genetic purity at genetic level during seed production and certification programme. Out of 25 lentil accessions, 18 accessions were observed as erect and compact growth habit, 22 accessions had green stem color, 21 accessions had dense leaf pubescence and dark foliage, 7 accessions had prominent tendril, 3 accessions had white blue veins flower and 4 accessions had large seeded accession.

Readjustment of the Standard ASUDAS to Encompass Dental Morphological Variations in Plio-Pleistocene Hominins

2018 ◽  
Vol 30 (1-2) ◽  
pp. 32-48
Author(s):  
M. Louail ◽  
S. Prat
Keyword(s):  
Phylogenetic Relationships ◽  
Homo Sapiens ◽  
Initial Study ◽  
Morphological Characters ◽  
State University ◽  
Arizona State University ◽  
Dental Anthropology ◽  
Morphological Variations ◽  
Fossil Hominins ◽  
Fossil Hominin

The standard ASUDAS scoring system (Arizona State University Dental Anthropology System) is used to assess dental morphological variations in modern humans. It is also frequently used to study, score, and compare morphological variations in fossil hominin taxa and to examine their phylogenetic relationships. However, using ASUDAS in studies of this type is under debate because it is based on modern Homo sapiens populations and does not appear to cover all variations observed in fossil Plio-Pleistocene homi- nins. Our observations and coding of 178 dentals casts of Plio-Pleistocene specimens based on ASUDAS and from the literature have confirmed the need to adapt the standard system to fossil hominins. In this initial study, we propose that the scoring procedures for some morphological characters need to be readjusted, while others could be standardized following the ASUDAS system.

Density and morphological characterization of bacteria in integrated and exclusive production systems

2020 ◽  
Vol 13 (11) ◽  
pp. 1
Author(s):  
A. R. B. Zanco ◽  
A. Ferreira ◽  
G. C. M. Berber ◽  
E. N. Gonzaga ◽  
D. C. C. Sabino
Keyword(s):  
Bacterial Community ◽  
Rainy Season ◽  
Production Systems ◽  
Cropping System ◽  
Morphological Characterization ◽  
Native Forest ◽  
Exclusive Production ◽  
Colony Forming Units

The different integrated production systems can directly interfere with its bacterial community. The present study aimed to assess density, bacterial diversity and the influence of dry and rainy season in different integrated and an exclusive production system. The fallow and a native forest area was assessed to. Samples were collected in 2012 March and September. The isolation were carried out into Petri dishes containing DYGS medium. The number of colony forming units (CFU) was counted after 48 hours and. The bacterial density ranged between 106 and 107 CFU g-1 soil. The crop system affected the dynamics of the bacterial community only in the rainy season. The rainy season showed greater density of total bacteria when compared to the dry period regardless of the cropping system. The dendrograms with 80 % similarity showed thirteen and fourteen groups in the rainy and dry seasons. Isolates with the capacity to solubilize phosphate in vitro were obtained from all areas in the two seasons, but this feature has been prevalent in bacteria isolated during the rainy season

scholarly journals Morphological Characterization of the Antennal Sensilla of the Afrotropical Sand Fly, Phlebotomus duboscqi (Diptera: Psychodidae)

2020 ◽  
Author(s):  
Ana Cristina Bahia ◽  
Ana Beatriz F Barletta ◽  
Luciana Conceição Pinto ◽  
Alessandra S Orfanó ◽  
Rafael Nacif-Pimenta ◽  
...  
Keyword(s):  
Morphological Characters ◽  
Morphological Characterization ◽  
Sand Fly ◽  
Antennal Sensilla ◽  
Olfactory Sensilla ◽  
Zoonotic Cutaneous Leishmaniasis ◽  
Electrophysiological Studies ◽  
Phlebotomus Duboscqi ◽  
Well Differentiated ◽  
Function Number

Abstract We investigated by scanning electron microscopy the morphology, distribution, and abundance of antennal sensilla of females Phlebotomus duboscqi sand fly, an important vector of zoonotic cutaneous leishmaniasis at Afrotropical region. Thirteen well-differentiated sensilla were identified, among six types of cuticular sensilla. The probable function of these sensillary types is discussed in relation to their external structure and distribution. Five sensillary types were classified as olfactory sensilla, as they have specific morphological characters of sensilla with this function. Number and distribution of sensilla significantly differed between antennal segments. The results of the present work, besides corroborating in the expansion of the morphological and ultrastructural knowledge of P. duboscqi, can foment future electrophysiological studies for the development of volatile semiochemicals, to be used as attractants in traps for monitoring and selective vector control of this sand fly.

Further Observations on the Morphology of Heterodera schachtii, with Remarks on the Bionomics of a strain attacking Mangolds in Britain

1929 ◽  
Vol 7 (3) ◽  
pp. 119-140 ◽  
Author(s):  
Marjorie J. Triffitt
Keyword(s):  
Sugar Beet ◽  
Developmental Stages ◽  
Morphological Characters ◽  
Heterodera Schachtii ◽  
Adult Males ◽  
Morphological Variations ◽  
Size And Shape ◽  
Morphological Studies ◽  
Comparative Survey

In a previous publication the morphological characters of a strain of H. schachtii specialised on the potato in Lincolnshire were discussed. The size and shape of the brown cysts, size of the eggs and first stage larvæ and the general characters of the adult males of this strain were compared with those of a strain attacking potatoes in Rostock, Mecklenburg, for which the specific name H. rostochiensis was suggested by Wollenweber 1923.Considerable dimensional variations were found to exist in the Lincolnshire strain, and a study of the literature on the morphological characters of H. schachtii specialised on sugar-beet and oats, showed equally wide divergencies between the findings of different workers. A certain amount of preserved material of infected roots of beet and oats being available to the writer, as many developmental stages as possible were extracted from these, on which similar morphological studies were carried out. Thus a fairly complete comparative survey of H. schachtii specialised on beet, oats and potatoes was completed, and the morphological variations between the strains were found to be insufficient to justify the separation of the strain specialised on potato from those on beet and oats. The name H. rostochicnsis was, therefore, deemed a synonym for H. schachtii.

scholarly journals Relationships among cultivated peas and their wild relatives: Molecular and morphological characterization

2019 ◽  
Vol 48 (4) ◽  
pp. 1011-1019
Author(s):  
Fatih Hanci ◽  
Esra Cebeci
Keyword(s):  
Molecular Study ◽  
Morphological Characters ◽  
Morphological Characterization ◽  
Local Varieties ◽  
Ssr Loci ◽  
Taxonomic Groups ◽  
Clustering Pattern ◽  
Polymorphism Level ◽  
Different Sources ◽  
Simple Sequence

This study was conducted to determine relationship between some wild pea accessions (Pisum fulvum L., P. abyssinicum L., P. sativum var. elatius), local varieties (P. sativum var. sativum L. and P. sativum var. arvense L.) and commercial varieties “Boogie” and “Rondo”. The genetic diversity was evaluated with 14 simple sequence repeat markers and 50 morphological characters. The results of morphology indicated that, genotypes showed a clustering pattern based on the taxonomic groups when considering only flower characters and all morphological characters. During the molecular study, a total of 48 alleles were obtained. Used all primers showed polymorphism in accessions. The number of alleles varied between 2 - 6 among 14 SSR loci revealing the polymorphism level of markers. Similarity coefficient (Dice’s) ranged from 0.100 to 0.800 with an average of 0.378. A dendrogram grouped the 15 genotypes into two main clusters. This information can be utilized for genetic analysis, genotype identification from different sources and development of improved germplasm.

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.

Study of Six Varieties of Sweet Basil (Ocimum basilicum L.) and their Morphological Variations

2016 ◽  
Vol 23 (1) ◽  
pp. 17-22
Author(s):  
Rajni Rawat ◽  
K. Negi ◽  
Puran Mehta ◽  
Vandana Tiwari ◽  
S. Verma ◽  
...  
Keyword(s):  
Morphological Characters ◽  
Ocimum Basilicum ◽  
New Delhi ◽  
Phenotypic Characters ◽  
Tropical Asia ◽  
Morphological Variations ◽  
Sweet Basil ◽  
Medicinal Use ◽  
Superior Genotypes ◽  
The Comparative Study

Sweet basil is an incredible herb, used both as a classic culinary and ornamental herb of Home Gardens. The genus Ocimum contains approximately 65 species of herbs and shrubs originated in tropical Asia. It has a strong medicinal use and it is very high in vitamins and minerals. The present study holds 6 varieties of Ocimum basilicum L. consisting of 29 accessions were procured from National Gene Bank, New Delhi. These accessions were grown in the Kharif seasons of 2014-15 at ICAR-NBPGR Regional Station, Bhowali, Nainital Uttarakhand for analysing of their quantitative and qualitative or phenotypic characters for identification of superior genotypes. The comparative study of Ocimum spp. was examined to assess the variability of qualitative and quantitative morphological characters using standardized description present among 30 accessions of 6 varieties of Ocimum basilicum L. (Sweet Basil).

FEEDING PREFERENCES OF THE ASHGRAY BLISTER BEETLE, EPICAUTA FABRICII (LECONTE) (COLEOPTERA: MELOIDAE), FOR FOUR LEGUMES

1996 ◽  
Vol 128 (2) ◽  
pp. 349-350 ◽  
Author(s):  
Barbara A. Nead ◽  
Michael J. Weiss ◽  
Lindsey R. Milbrath
Keyword(s):  
North America ◽  
Soil Nitrogen ◽  
Faba Bean ◽  
Financial Risk ◽  
Lens Culinaris ◽  
Plant Pathogens ◽  
Cropping System ◽  
Feeding Preferences ◽  
Potential Production ◽  
Blister Beetle

The addition of legumes in the small grain cropping system of the western prairie regions of North America has several advantages: an increased diversity in the landscape may reduce pest loads of insects, plant pathogens, and weeds; a decreased financial risk for producers by diversifying the types of crops produced; and increased soil nitrogen via fixation and mineralization. Several alternative legumes are being examined for potential production in this region, including lupins (Lupinus spp.), faba bean (Vicia faba L.), chickpea (Cicer arietinum L.), and lentil (Lens culinaris Medikus).

scholarly journals Morphological variability of acorns and its taxonomic significance in Quercus. from Turkey

2015 ◽  
Vol 43 (3) ◽  
pp. 293-299 ◽  
Author(s):  
Y Bakis ◽  
MT Babaç
Keyword(s):  
Principal Component Analysis ◽  
Morphological Variability ◽  
Morphological Characteristics ◽  
Principal Component ◽  
Component Analysis ◽  
Morphological Characters ◽  
Taxonomic Significance ◽  
Morphological Variations ◽  
Quercus Species ◽  
Different Populations

Morphological variations of acorn among and within the groups of Quercus species were studied. A total of 617 acorns belonging to 14 species representing all 3 sections of Quercus L. (Fagaceae) in Turkey were examined in this study. Specimens were collected from 47 different populations over both Anatolian and Thrace part of Turkey. Principal component analysis was used to analyze the morphological characteristics of acorns. Results obtained from this study demonstrate the use of morphological characters in differentiating the taxa of Quercus and Cerris sections studied. Another important finding is the introgression among the acorns of species within Quercus section DOI: http://dx.doi.org/10.3329/bjb.v43i3.21601 Bangladesh J. Bot. 43(3): 293-299, 2014 (December)

Evolution of European Cockchafers (Melolonthinae: Scarabaeidae: Coleoptera): a morphological, molecular and chromosomal study of intra- and inter-specific variations

2011 ◽  
Vol 101 (3) ◽  
pp. 345-352 ◽  
Author(s):  
T. Giannoulis ◽  
A.-M. Dutrillaux ◽  
Z. Mamuris ◽  
O. Montreuil ◽  
C. Stamatis ◽  
...  
Keyword(s):  
Gene Sequence ◽  
Chromosomal Polymorphism ◽  
Morphological Characters ◽  
The Other ◽  
Ancestral Karyotype ◽  
Intraspecific Polymorphism ◽  
Morphological Variations ◽  
Chromosomal Study ◽  
Sequence Study

AbstractIn cockchafers of the genus Melolontha, there is a marked intraspecific polymorphism for morphological characters, making some specimens of one species resemble another. A cytogenetic and molecular (mitochondrial COI gene sequence) study of typical and atypical forms of M. melolontha and M. hippocastani, captured at the same period and area, was performed. Karyotypes and haplotypes clearly characterize each taxon, placing atypical specimens in one or the other species unambiguously. This formally discards the role of hybridization in phenotypic resemblance, as usually proposed. Karyotypes and haplotypes were compared to those of M. pectoralis and Phyllophaga pleei, a more distantly related Melolonthinae, and some Dynastinae species, to reconstruct their ancestral karyotype. The karyotype of M. melolontha is the most derivative and that of P. pleei the most conserved among the Melolonthinae studied, which fits with the phylogeny established by COI gene analysis. Both karyotypes and COI haplotypes demonstrate the proximity of M. pectoralis and M. melolontha. The karyotype of M. melolontha is polymorphic, without relationship with morphological variations. Finally, the existence of similar morphological variations in different Melolontha species and chromosomal polymorphism in M. melolontha is discussed in relation with a network (reticulated) mode of speciation.

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