Massalongiaceae fam. nov., an overlooked monophyletic group among the cyanobacterial lichens (Peltigerales, Lecanoromycetes, Ascomycota)

2006 ◽  
Vol 39 (1) ◽  
pp. 61-67 ◽  
Author(s):  
Mats WEDIN ◽  
Per Magnus JØRGENSEN ◽  
Elisabeth WIKLUND
Keyword(s):  
Morphological Characteristics ◽  
Rdna Sequence ◽  
Monophyletic Group ◽  
Bayesian Analyses ◽  
The Family ◽  
Cyanobacterial Lichens

In this investigation we utilized parsimony and Bayesian analyses of mtSSU and nuLSU rDNA sequence datasets to show that the lichenized ascomycete genera Leptochidium and Polychidium (formerly classified in Placynthiaceae) form a well-supported monophyletic group with Massalongia (Peltigerales, Lecanoromycetes, Ascomycota). This group is also supported by morphological characteristics (ascus type, ascoma ontogeny and anatomy), but does not have a formal name on any level. We describe it here as the family Massalongiaceae. Massalongiaceae is related to a group consisting of Peltigeraceae-Nephromataceae, and Lobariaceae, but the detailed relationships within this group are not resolved with convincing support.

scholarly journals A systematic revision of Capparaceae and Cleomaceae in Egypt: an evaluation of the generic delimitations of Capparis and Cleome using ecological and genetic diversity

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Mohamed Abd. S. El zayat ◽  
Mahmoud El Sayd Ali ◽  
Mohamed Hamdy Amar
Keyword(s):  
Genetic Diversity ◽  
Morphological Characteristics ◽  
Systematic Position ◽  
Diversity Analysis ◽  
Polymorphic Markers ◽  
Ecological Distribution ◽  
Specific Group ◽  
Systematic Revision ◽  
Dna Evidence ◽  
The Family

Abstract Background The Capparaceae family is commonly recognized as a caper, while Cleomaceae represents one of small flowering family within the order Brassicales. Earlier, Cleomaceae was included in the family Capparaceae; then, it was moved to a distinct family after DNA evidence. Variation in habits and a bewildering array of floral and fruit forms contributed to making Capparaceae a “trash-basket” family in which many unrelated plants were placed. Indeed, family Capparaceae and Cleomaceae are in clear need of more detailed systematic revision. Results Here, in the present study, the morphological characteristics and the ecological distribution as well as the genetic diversity analysis among the twelve species of both Capparaceae and Cleomaceae have been determined. The genetic analysis has been checked using 15 ISSR, 30 SRAP, and 18 ISTR to assess the systematic knots between the two families. In order to detect the molecular phylogeny, a comparative analysis of the three markers was performed based on the exposure of discriminating capacity, efficiency, and phylogenetic heatmap. Our results indicated that there is a morphological and ecological variation between the two families. Moreover, the molecular analysis confirmed that ISTR followed by SRAP markers has superior discriminating capacity for describing the genetic diversity and is able to simultaneously distinguish many polymorphic markers per reaction. Indeed, both the PCA and HCA data have drawn a successful annotation relationship in Capparaceae and Cleome species to evaluate whether the specific group sort individual or overlap groups. Conclusion The outcomes of the morphological and ecological characterization along with the genetic diversity indicated an insight solution thorny interspecies in Cleome and Gynandropsis genera as a distinct family (Cleomaceae) and the other genera (Capparis, Cadaba, Boscia, and Maerua) as Capparaceae. Finally, we recommended further studies to elucidate the systematic position of Dipterygium glaucum.

Larval development of Metapenaeopsis barbata (de Haan, 1844) (Crustacea: Decapoda: Penaeidae)

1997 ◽  
Vol 48 (5) ◽  
pp. 401 ◽  
Author(s):  
Jesse D. Ronquillo ◽  
Toshio Saisho
Keyword(s):  
Morphological Characteristics ◽  
Larval Feeding ◽  
Feeding Apparatus ◽  
Filter Feeder ◽  
Closely Related Species ◽  
Larval Stages ◽  
Chaetoceros Gracilis ◽  
The Family ◽  
Gravid Females ◽  
Natural Means

Gravid females of Metapenaeopsis barbata spawned in the laboratory by natural means and the larvae were reared from hatching to postlarval stage at 27·0–29·8˚C and 33·5–34·5 g kg -1 salinity. The larvae metamorphosed into first postlarvae, with a survival rate of up to 98·4%, after about 10 days following hatching and subsistence on only an algal diet of Tetraselmis tetrathele and Chaetoceros gracilis. Six naupliar stages, three protozoeal stages, three mysis stages and the first postlarval stage are described and illustrated. On the basis of morphological characteristics, larval stages of M. barbata can be distinguished from similar stages of closely related species in the family Penaeidae. As inferred from the morphology of the larval feeding apparatus, M. barbata is still a filter-feeder even at the first postlarval stage.

scholarly journals Analysis of Morphological Features and Flavonoid Compositions of Crabapple Exposed to 60Coγ Radiation Treatments

2018 ◽  
Vol 46 (1) ◽  
pp. 82-89
Author(s):  
Yanfen LU ◽  
Suxiao HAO ◽  
Hui GENG ◽  
Yuncong YAO
Keyword(s):  
Nutritive Value ◽  
Morphological Characteristics ◽  
Morphological Features ◽  
Aflp Analysis ◽  
Germplasm Resources ◽  
Dna Diversity ◽  
The Family ◽  
Rosaceae Family ◽  
Flavonoid Composition ◽  
Radiation Treatments

Flavonoids are important secondary metabolites, whose content and composition such as anthocyanin and flavonol have been associated with fruit quality and affect fruit coloration. Crabapple (Malus spp.), with rich color and nutritive value, belongs to the family M. genus of the Rosaceae family, and it is widely used in landscape for its rich flavonoid compositions. Radiation mutagenesis breeding may increase the gene mutation frequency and enhance diversity of species, so it is a predominant approach for plant germplasm innovation. However, the changes of crabapple morphological characteristics and flavonoid compositions by radiation are not clear. In this study, we employed 60Coγ radiation to M.cv. ‘Royalty’ crabapple, and then surveyed the changes of leaves and flowers in the growth and morphology traits, color parameters, flavonoid composition, and the genetic diversity. The result found that 60Coγ radiation decreased plant height, stem diameter and leaf and flower areas. And it promoted the flavonoids accumulation in leaves, but inhibited that in flowers. Additionally, 60Coγ radiation improved DNA diversity. W60-7, W40-2 and W40-5 plants showed clear phenotypic variation by AFLP analysis. These results provide evidence that mutagenesis breeding may change the morphological features and flavonoid compositions, and expand crabapple germplasm resources and improve its application value. 

scholarly journals First record of intersexuality in Porcellana platycheles (Pennant, 1777) (Decapoda: Anomura: Porcellanidae)

2017 ◽  
Vol 41 (3) ◽  
pp. 606-610
Author(s):  
Luciane Ferreira ◽  
Guillermo Guzmán
Keyword(s):  
Morphological Characteristics ◽  
First Record ◽  
Genetic Variations ◽  
The Third ◽  
The Family

This paper reports the first record of intersexuality from Porcellana platycheles, a member of the family Porcellanidae. Intersex individuals were identified by the presence of both pairs of genital openings on the coxae of the third and fifth pereiopods respectively, and by morphological characteristics of the abdomen and pleopods. The low occurrence of this condition suggests that intersexuality is due to genetic variations in the population rather than other possible causes of intersexuality previously reported in other decapods.

scholarly journals Genetic and Morphological Characterization of Mangifera indica L. Growing in Egypt

HortScience ◽  
2018 ◽  
Vol 53 (9) ◽  
pp. 1266-1270 ◽  
Author(s):  
Nader R. Abdelsalam ◽  
Hayssam M. Ali ◽  
Mohamed Z.M. Salem ◽  
Elsayed G. Ibrahem ◽  
Mohamed S. Elshikh
Keyword(s):  
Genetic Diversity ◽  
Mangifera Indica ◽  
Morphological Characteristics ◽  
Morphological Characterization ◽  
Molecular Techniques ◽  
Germplasm Management ◽  
Fruit Crops ◽  
The Family ◽  
High Diversity

Mango (Mangifera indica L.) is a fruit crops belong to the family Anacardiaceae and is the oldest cultivated tree worldwide. Cultivars maintained in Egypt have not been investigated previously. Mango was first brought to Egypt from South Asia. Morphological and molecular techniques were used to identify the genetic diversity within 28 mango cultivars. SSR and EST-SSR were used for optimizing germplasm management of mango cultivars. Significant variations were observed in morphological characteristics and genetic polymorphism, as they ranged from 0.71% to 100%. High diversity was confirmed as a pattern of morphological and genotypes data. Data from the present study may be used to calculate the mango relationship and diversity currently grown in Egypt.

Phylogenetic relationships of the African genera Alestes and Brycinus (Teleostei, Characiformes, Alestidae)

2002 ◽  
Vol 80 (11) ◽  
pp. 1887-1899 ◽  
Author(s):  
Alison M Murray ◽  
Kathlyn M Stewart
Keyword(s):  
Phylogenetic Relationships ◽  
Cladistic Analysis ◽  
Sister Group ◽  
Monophyletic Group ◽  
The Family ◽  
The Subject

The family Alestidae (also referred to as the African Characidae) comprises the African dwarf forms ("Petersiini") and the genera Alestes, Brycinus, Bryconaethiops, and Hydrocynus. Although several authors have presented characters to support the monophyly of the family, a cladistic analysis of the group has not been published. Furthermore, the interrelationships of the constituent groups are the subject of some controversy. A cladistic analysis of the Alestidae is presented, including characters to support the monophyly of the family. The results of this study indicate that several species should be removed from the genus Brycinus, that Hydrocynus is the sister group of Alestes s.str. (containing only five species), and that the dwarf alestids ("Petersiini") do not form a monophyletic group.

scholarly journals Phylogeny of the family Halomonadaceae based on 23S and 165 rDNA sequence analyses.

2002 ◽  
Vol 52 (1) ◽  
pp. 241-249 ◽  
Author(s):  
David R Arahal ◽  
Wolfgang Ludwig ◽  
Karl H Schleifer ◽  
Antonio Ventosa
Keyword(s):  
Rdna Sequence ◽  
Sequence Analyses ◽  
The Family

scholarly journals Identification and Functional Analysis of Temperate Siphoviridae Bacteriophages of Acinetobacter baumannii

Viruses ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 604 ◽  
Author(s):  
Shimaa Badawy ◽  
Maria I. Pajunen ◽  
Johanna Haiko ◽  
Zakaria A. M. Baka ◽  
Mohamed I. Abou-Dobara ◽  
...  
Keyword(s):  
Acinetobacter Baumannii ◽  
Trna Gene ◽  
Phage Therapy ◽  
Morphological Characteristics ◽  
Opportunistic Pathogen ◽  
Clinical Strains ◽  
Narrow Host Range ◽  
Clinical Challenge ◽  
Transmission Electron ◽  
The Family

Acinetobacter baumannii is an opportunistic pathogen that presents a serious clinical challenge due to its increasing resistance to all available antibiotics. Phage therapy has been introduced recently to treat antibiotic-incurable A. baumannii infections. In search for new A. baumannii specific bacteriophages, 20 clinical A. baumannii strains were used in two pools in an attempt to enrich phages from sewage. The enrichment resulted in induction of resident prophage(s) and three temperate bacteriophages, named vB_AbaS_fEg-Aba01, vB_AbaS_fLi-Aba02 and vB_AbaS_fLi-Aba03, all able to infect only one strain (#6597) of the 20 clinical strains, were isolated. Morphological characteristics obtained by transmission electron microscopy together with the genomic information revealed that the phages belong to the family Siphoviridae. The ca. 35 kb genomic sequences of the phages were >99% identical to each other. The linear ds DNA genomes of the phages contained 10 nt cohesive end termini, 52–54 predicted genes, an attP site and one tRNA gene each. A database search revealed an >99% identical prophage in the genome of A. baumannii strain AbPK1 (acc. no. CP024576.1). Over 99% identical prophages were also identified from two of the original 20 clinical strains (#5707 and #5920) and both were shown to be spontaneously inducible, thus very likely being the origins of the isolated phages. The phage vB_AbaS_fEg-Aba01 was also able to lysogenize the susceptible strain #6597 demonstrating that it was fully functional. The phages showed a very narrow host range infecting only two A. baumannii strains. In conclusion, we have isolated and characterized three novel temperate Siphoviridae phages that infect A. baumannii.

Morphological and genetic description of Moniliformis necromysi sp. n. (Archiacanthocephala) from the wild rodent Necromys lasiurus (Cricetidae: Sigmondontinae) in Brazil

2020 ◽  
Vol 94 ◽  
Author(s):  
A.P.N. Gomes ◽  
N.A. Costa ◽  
R. Gentile ◽  
R.V. Vilela ◽  
A. Maldonado
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Genetic Distances ◽  
Brazilian Cerrado ◽  
Wild Rodent ◽  
The Family ◽  
Molecular Phylogenies ◽  
A New Species

Abstract A new species of Moniliformis Travassos, 1915 (Acanthocephala: Moniliformidae) is described from the hairy-tailed bolo mouse, Necromys lasiurus Lund, 1840 (Cricetidae: Sigmondontinae), captured in the Brazilian Cerrado, in Uberlândia, state of Minas Gerais, Brazil. The specimens were studied by light and scanning electron microscopy. Molecular phylogenies were inferred from partial nuclear large subunit ribosomal RNA gene sequences and partial mitochondrial cytochrome c oxidase subunit I gene. The new species is distinguished from other moniliformid species by the number of rows and number of hooks per row, size of the proboscis, size of the eggs, host species and geographical distribution. Molecular phylogenies and genetic distances analyses demonstrated that Moniliformis necromysi sp. n. forms a well-supported monophyletic group with sequences of other species of Moniliformis and is distinguished from them, which agrees with the morphological characteristics, allocating the new species to this genus and to the family Moniliformidae Van Cleave, 1924. This is the first moniliformid acanthocephalan described from a wild rodent in Brazil.

Phytoseiid mites (Acari: Phytoseiidae) on Myrtaceae in the State of S o Paulo, Brazil

Zootaxa ◽  
2004 ◽  
Vol 516 (1) ◽  
pp. 1 ◽  
Author(s):  
A. C. LOFEGO ◽  
G. J. DE MORAES ◽  
L. A.S. CASTRO
Keyword(s):  
Plant Species ◽  
Morphological Characteristics ◽  
Mite Species ◽  
Predatory Mite ◽  
The State ◽  
Southeastern Brazil ◽  
Phytoseiid Mites ◽  
The Family

Eighteen predatory mite species of the family Phytoseiidae are reported from three sites of the Cerrado ecosystem in the State of S o Paulo, southeastern Brazil, on seven plant species of the family Myrtaceae. This paper provides a list of those species and compares relevant morphological characteristics of the specimens collected with those of the original descriptions and/ or redescriptions of the corresponding species. A key is provided to help in the separation of the species mentioned in the paper. Some of the species collected have been reported as common predators on dominant crops in the region where the work was done. Their occurrence on Myrtaceae plants found naturally in the Cerrado ecosystem indicates that those plants could represent important reservoirs of those predators.

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