scholarly journals Morphometric Characterization of the Lidia Cattle Breed

Animals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1180
Author(s):  
Juan Manuel Lomillos ◽  
Marta E. Alonso
Keyword(s):  
Cattle Breed ◽  
Internal Variability ◽  
Morphological Characterization ◽  
Relative Depth ◽  
Sexually Dimorphic ◽  
Muscular Development ◽  
Morphological Differences ◽  
Positive Correlations ◽  
Morphometric Characterization

Morphometric studies in Lidia cattle are scarce due to the challenges of handling and approaching this breed of cattle. For this reason, the first morphological characterization of the Lidia breed was carried out using photogrammetry. In the present work, 264 adult individuals (184 males and 80 females), belonging to 21 different herds, were studied. A total of 20 morphological measurements and five indexes were determined in every individual. There were many positive correlations between the measures, giving the model great morphostructural harmony. Considerable internal variability of the studied parameters was observed. This breed reflected significant sexually dimorphic features and internal morphological differences between the different genetic lines of the breed. Lidia cattle are small and mostly have a sub-concave profile (58.4% males and 69.7% females). The male proportionality indexes and the relative depth of the thorax indicated great muscular development of the anterior third and high thoracic capacity. The phaneroptic information describes a mostly black animal with black mucous and hooves and an outstanding development of the dewlaps and the tail in the males.

Between- and within-breed morphological variability in Moroccan sheep breeds

2016 ◽  
Vol 58 ◽  
pp. 91-100 ◽  
Author(s):  
I. Boujenane ◽  
D. Petit
Keyword(s):  
Multivariate Analyses ◽  
Morphological Variability ◽  
Tail Length ◽  
Morphological Characterization ◽  
Total Variance ◽  
High Association ◽  
Sheep Breeds ◽  
Selection Strategies ◽  
Morphological Differences

SummaryThe objective of this study was a morphological characterization of five Moroccan sheep breeds (Béni Guil, Boujaâd, D'man, Sardi and Timahdite) to assess between- and within-breed variability using multivariate analyses. Fourteen morphological measurements were collected on 876 adult animals of both sexes in 98 different flocks located in 22 geographic localities of five breeds. The multiple analysis of variance revealed that significant morphological differences existed between breeds. The overall proportion of total variance due to between-breed component was 28.3 percent. The factor analysis revealed three factors accounting for 50.1, 11.8 and 7.54 percent of total variance. The first factor had high loadings for variables relating to body size, whilst the second factor had high association with traits reflecting tail length and ear size. The third factor had high loadings for wool trait. The squared Mahalanobis distance between the five sheep breeds were highly significant (P< 0.001). The largest morphological divergence was shown between Béni Guil and Sardi breeds (23.5) and the smallest one was between Boujaâd and Sardi breeds (3.54). The discriminant functions clearly discriminated and assigned 94.4 percent of Béni Guil, 79.7 of Boujaâd, 88.5 percent of D'man, 86.7 of Sardi and 80.1 percent of Timahdite sheep into their breed of origin. Overall morphological differences observed within-breeds were due for 18.1 percent to geographic locality and for 20.7 percent to flock management. It was concluded that the information reported in this study will be the basis for the establishment of characterization and selection strategies for Moroccan sheep.

scholarly journals Morphological Characterization of Mulberry (Morus spp.) Accessions Grown in Kenya

2013 ◽  
Vol 3 (1) ◽  
pp. 10 ◽  
Author(s):  
Nderitu Wangari Peris ◽  
Kinyua Mirriam Gacheri ◽  
Mutui Mwendwa Theophillus ◽  
Ngode Lucas
Keyword(s):  
Hierarchical Cluster ◽  
Morphological Characterization ◽  
Phenotypic Traits ◽  
Mulberry Leaf ◽  
Leaf Yield ◽  
Morus Spp ◽  
Positive Correlations ◽  
Internode Distance ◽  
Number Of Branches

<p>Genetic divergence of five mulberry accessions including Embu, Thika, Thailand (<em>M. alba</em>), Kanva-2 and S41 (<em>M. indica</em>) grown in Kenya were examined using twelve phenotypic traits. The assessment of phenotypic traits was done in a field study in two localities, Nairobi and Eldoret. The traits that were significantly different across the mulberry accessions included lamina width and petiole length (P ? 0.01), petiole width and growth height (P ? 0.05), internodes distance and number of branches (P ? 0.001). The Duncan’s Multiple Range Test (DMRT) results were used to generate a dendrogram derived from hierarchical cluster analysis that further partitioned the mulberry accessions into four groups. Embu and Thailand accessions grouped together while S41, Thika and Kanva-2 accessions grouped separately. Embu and Thailand accessions were characterized by fewer numbers of branches than the rest of the accessions. Thika accession had high number of branches and short internode distance. Significant and positive correlations were found between leaf yield traits except in internode distance and number of branches which were significant and negatively correlated. Significant and positive correlations can be utilized since they are rewarding for mulberry leaf yield improvement.</p>

Morphological characterization of diploid and triploid Acorus calamus (Acoraceae) from southern Western Siberia, parthenocarpy in sterile plants and occurrence of aneuploidy

2020 ◽  
Author(s):  
Dmitry D Sokoloff ◽  
Mikhail V Skaptsov ◽  
Nikolay A Vislobokov ◽  
Sergey V Smirnov ◽  
Alexander I Shmakov ◽  
...  
Keyword(s):  
Western Siberia ◽  
Cell Number ◽  
Morphological Characterization ◽  
Acorus Calamus ◽  
Subsequent Work ◽  
Centre Of Diversity ◽  
Morphological Differences ◽  
Temperate Asia ◽  
Important Medicinal Plant

Abstract Finding morphological differences between cytotypes that are stable throughout their geographical range is important for understanding evolution of polyploid complexes. The ancient monocot lineage Acorus includes two groups, of which A. calamus s.l., an important medicinal plant, is a polyploid complex with a centre of diversity in Asia. European plants are sterile triploids introduced by humans. An early study suggested that plants from temperate Asia are tetraploids, but subsequent work revealed diploids and triploids rather than tetraploids in Asiatic Russia; however, cytotype diversity in Western Siberia is insufficiently known. We document the occurrence of diploids and triploids in Western Siberia. Triploids that do not differ in genome size from European Acorus are abundant in the valley of the river Ob where the ability for extensive vegetative propagation provides ecological advantages. An isolated population of aneuploid triploids with 33 chromosomes is found outside the Ob valley. Flow cytometry provides an efficient tool for identification of aneuploid plants in Acorus. All triploids are sterile, but their flowers develop uniform parthenocarpic fruits. Fruits of diploids usually vary in size within a spadix depending on the number of developing seeds. In contrast to North America, where the native diploid plants differ from the introduced triploids by the absence of a secondary midrib of the ensiform leaf blade, Siberian diploids are similar to triploids in possessing a secondary midrib. We confirm that diploids differ from triploids in the size of air lacunae in leaves, which is determined by cell number rather than cell size in septa of aerenchyma. A combination of spathe width and spadix length measured after the male stage of anthesis shows different (slightly overlapping) patterns of variation between diploids and triploids in our material.

Morphological Characterization of Chitosan in the Hydroxyapatite/Chitosan Nanocomposites

2009 ◽  
Vol 79-82 ◽  
pp. 1675-1678
Author(s):  
Xiao Ying Lu ◽  
Xiu Hong Wang ◽  
Jian Xin Wang ◽  
Shu Xin Qu ◽  
Jie Weng
Keyword(s):  
Ph Value ◽  
Biomedical Application ◽  
Morphological Characterization ◽  
Layer By Layer ◽  
Oriented Growth ◽  
Hydrothermal Temperature ◽  
Morphological Differences ◽  
Hydrothermal Precipitation

The morphological differences of chitosan (CS) in the hydroxyapatite (HA)/CS nanocomposites were investigated in detailed, which were prepared via in situ hydrothermal precipitation. The results show that the obtained nanocomposites have excellent crystallinity and the crystal has excellent ordered structure, which is important to the composites performances in the biomedical application. Moreover, the CS arrangement and crystallinity in the composites greatly depend on the hydrothermal temperature and the pH value of precipitating agent. The temperature ranging from 373 to 413K and pH value of precipitating agent ranging from 12 to 14 were favorable to the crystallization and oriented growth of CS molecules in the composites. The CS crystals with better arrangement are assembled in the order of layer-by-layer in these composites.

scholarly journals AGRONOMIC AND MORPHOLOGICAL CHARACTERIZATION OF LIPPIA (VERBENACEAE) SPECIES NATIVE FROM BRAZILIAN SEMIARID REGION

2017 ◽  
Vol 92 (2) ◽  
pp. 147
Author(s):  
Ariana Reis Messias Fernandes de Oliveira ◽  
Lenaldo Muniz Oliveira ◽  
José Floriano Barea Pastore ◽  
Tânia Regina dos Santos Silva ◽  
Larissa Correa do Bonfim Costa
Keyword(s):  
Essential Oil ◽  
Agronomic Traits ◽  
Morphological Characterization ◽  
Semiarid Region ◽  
Brazilian Semiarid ◽  
Aromatic Species ◽  
Morphological Differences ◽  
Stem Leaf ◽  
Essential Oil Yield

The genus Lippia L. is represented by several aromatic species, producing essential oils with biological activity, especially antimicrobial.  The semiarid region of Bahia contains several Lippia species that could be economically exploited. This study aimed to characterize morphological and agronomic traits of four species of Lippia native of the semiarid region. The species were collected in a number of cities of the state of Bahia. The experimental design was performed in randomized blocks with four repetitions and four plants per repetition for each species. We conducted quantitative and qualitative morphological characterizations, and evaluated the characters of stem, leaf and inflorescence; in addition to the agronomic characterization, with the fresh and dry matter of inflorescences, we evaluated leaves and stem and essential oil content and yield. The results showed morphological differences between the species for all traits evaluated, except for the number of flowers per inflorescence. The agronomical characterization showed differences for all measured characters, and the species Lippia lasiocalycina was distinguished by the essential oil yield.

Polymorphism and inconsistencies in the taxonomy of Diplodinium anisacanthum da Cunha, 1914 (Ciliophora, Entodiniomorphida, Ophryoscolecidae) and taxonomic notes on the genus Diplodinium Schuberg, 1888

Zootaxa ◽  
2017 ◽  
Vol 4306 (2) ◽  
pp. 249 ◽  
Author(s):  
FRANCIANE CEDROLA ◽  
ROBERTO JÚNIO PEDROSO DIAS ◽  
ISABEL MARTINELE ◽  
MARTA D’AGOSTO
Keyword(s):  
Morphometric Analysis ◽  
Single Species ◽  
Distinct Species ◽  
Molecular Data ◽  
Morphological Characterization ◽  
The Body ◽  
General Morphology ◽  
Polymorphic Species ◽  
Morphometric Characterization

The genus Diplodinium includes 31 species of ophryoscolecid ciliates with two retractable ciliary zones in the anterior end of the body, with no skeletal plates, inclined macronucleus and two contractile vacuoles. They have a broad geographical distribution and low host specificity. The genus has several taxonomic inconsistencies, mainly due to polymorphism of most species. Diplodinium anisacanthum is a case of taxonomic inconsistency in the genus. It presents polymorphism in posterior end of the body, so it is considered a polymorphic species or seven distinct species. This study presents the morphological characterization of six D. anisacanthum morphotypes based on general morphology, morphometric analysis and oral infraciliature characterization and taxonomic notes on the genus Diplodinium. The morphological and morphometric characterization of D. anisacanthum showed great similiarities among morphotypes suggesting that these ciliates constitute a single species with polymorphisms. A brief review conducted highlights the inconsistencies in the taxonomy of the genus Diplodinium and demonstrates the need for recent studies with representatives of the genus. There is no information on how polymorphism of Diplodinium anisacanthum morphotypes correlates to molecular data, since there are only two sequences of this species available in the GenBank database. 

scholarly journals Short communication: Morphometric characterization of Lidia cow (Bos taurus) reproductive apparatus

2018 ◽  
Vol 16 (3) ◽  
pp. e04SC03 ◽  
Author(s):  
Pedro B. C. Correia ◽  
Erica E. Baron ◽  
Krishna Pavani ◽  
José Pacheco-Lima ◽  
Sofia Lopes ◽  
...  
Keyword(s):  
Short Communication ◽  
Bos Taurus ◽  
Cattle Breed ◽  
Body Width ◽  
Holstein Friesian ◽  
Reproductive Apparatus ◽  
Morphometric Characterization ◽  
One Way Anova ◽  
Uterine Body

To study Lidia cow reproductive apparatus traits, a total of 90 organs were collected after slaughtering the cows from different Bos taurus breeds: (i) Lidia cattle breed - Brava dos Açores population (n=10) and Domecq lineage (n=11); (ii) Holstein Friesian females – 10-14-month-old heifers (n=15); 15-20-month-old heifers (n=10), 21-19-month-old heifers (n=18), and (iii) cows ≥ 30 months (n=26). The length and width were measured for five portions of the female reproductive apparatus (vulva and vagina, cervix, uterine body, uterine horns and ovaries). One-way ANOVA was performed with Tukey test. The level recognized to assume differences was p<0.05 to less. Differences were not shown between Lidia groups. In general, the Lidia cow reproductive apparatus was small in size that that of the matured cows in terms of all traits, with the exception of cervix rings (5.10 ± 0.17 rings) with p≤0.01 for all the groups (averages ranged from 3.33 ± 0.11 rings to 3.50 ± 0.15 rings). The vulva and vagina (L= 27.31 ± 0.53 cm; W=2.07 ± 0.14 cm), the uterine body width (3.01 ± 0.18 cm) and the uterine horns (L= 12.24 ± 0.32; W= 1.13 ± 0.10) showed were smaller in size than those of the evaluated heifers from HF breed that ranged in age from 10 to 14 months (p≤0.01). This study was the first to perform a morphometric characterization on the Lidia cow reproductive apparatus, and the results provide useful information for understanding reproductive approaches to be used with this breed.

A taxonomic monograph of Myrcia sect. Sympodiomyrcia (Myrteae, Myrtaceae)

Phytotaxa ◽  
2018 ◽  
Vol 380 (1) ◽  
pp. 1 ◽  
Author(s):  
MATHEUS F. SANTOS ◽  
EVE LUCAS ◽  
PAULO T. SANO
Keyword(s):  
Atlantic Forest ◽  
Conservation Status ◽  
Morphological Characterization ◽  
Identification Key ◽  
Guiana Shield ◽  
Taxonomic Treatment ◽  
Taxonomic History ◽  
Central Eastern ◽  
Morphological Differences

Myrcia contains nearly 800 species and is divided into nine sections, one of them, Myrcia sect. Sympodiomyrcia, has recently been recognized and formally described. This study presents a taxonomic monograph of the group and revises its literature and taxonomic history. Myrcia sect. Sympodiomyrcia is mainly characterized by the presence of cataphylls at the base of internodes, sympodial branching at the base of inflorescences and free and deciduous calyx lobes. Myrcia sect. Sympodiomyrcia is distributed between the Guiana Shield and the central-eastern portion of Brazil (Atlantic Forest and Cerrado Domains). Morphological characterization of organs and structures is provided, as well as distribution statements, morphological differences with other sections of Myrcia and an identification key. A full taxonomic treatment as well as conservation status and images of representative specimens of each species are provided. Twenty one species are here accepted in Myrcia sect. Sympodiomyrcia: Myrcia ascendens, M. attenuata, M. bicarinata, M. bicolor, M. cataphyllata, M. costeira, M. densa, M. foveolata, M. insigniflora, M. lenheirensis, M. mucugensis, M. mutabilis, M. nitida, M. plusiantha, M. rupestris, M. subavenia, M. subcordata, M. subterminalis, M. summa, M. tenuifolia and M. truncata.

Morphological characterization of Badis species (Teleostei: Badidae) from Nepal 

Zootaxa ◽  
2018 ◽  
Vol 4524 (1) ◽  
pp. 97
Author(s):  
WILLIAM K. BLAIR ◽  
STEFAN VAN DER VOORT ◽  
DAVID R. EDDS
Keyword(s):  
Principal Component ◽  
Morphological Characterization ◽  
Small Rivers ◽  
Southeastern Part ◽  
Body Depth ◽  
Major River ◽  
Distribution And Ecology ◽  
Morphological Differences ◽  
River Drainages

We characterized morphological variation among 172 specimens of Badis sp. (Teleostei: Badidae), collected from across Nepal and previously identified as Badis badis, to investigate whether any represented an undescribed species. Size-corrected principal component analysis (PCA), cluster analysis (CA), and discriminant analysis (DA) revealed four significantly different groups. One group was characterized by shallower body depth and shorter pelvic to anal distance than other groups and lacked a cleithral blotch. It was identified as Badis andrewraoi, previously unknown from Nepal, yet represented in our sample by 19 specimens from small rivers in the southeastern part of the country. Distribution of the remaining groups, all identified as B. badis, did not correspond to a zoogeographic hypothesis relating to major river drainages. Instead, morphological differences among these groups was better explained by allometric shifts. We provide information on the distribution and ecology of B. andrewraoi and B. badis in Nepal. 

Molecular and morphological characterization of Pristionchus pacificus (Nematoda: Rhabditida: Neodiplogastridae), a new record of an entomophilic nematode from Iran

Biologia ◽  
2013 ◽  
Vol 68 (5) ◽  
Author(s):  
Mahnaz Hassani-Kakhki ◽  
Javad Karimi ◽  
Ebrahim Shokoohi
Keyword(s):  
First Record ◽  
Morphological Characterization ◽  
The Body ◽  
Phylogenetic Position ◽  
Rdna Genes ◽  
Pristionchus Pacificus ◽  
The Family ◽  
Identification Measurements ◽  
Morphometric Characterization

AbstractDuring a survey of entomopathogenic nematodes from the Mashhad region, in northeastern Iran, an entomophilic nematode was isolated using the Galleria trap method. Morphological characterization showed that this isolate belongs to the family Neodiplogastridae. Detailed morphological and morphometric characterization including SEM data fit with Pristionchus pacificus Sommer, Carta, Kim et Sternberg, 1996, representing the first record of this genus and species from Iran. Iranian specimens of P. pacificus FUM 5 are characterized by the body length (0.69–0.83 mm), the stoma (6–10 μm) bearing a dorsal tooth and a conical elongated tail (146–220 μm). Molecular analyses using 18S and ITS rDNA genes further support this identification. Measurements, illustrations, and SEM photographs of the Iranian isolate are provided and the phylogenetic position of the species is discussed.

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