scholarly journals Morphological Taxonomy of Musa Genotypes in Taiwan

2018 ◽  
Vol 63 (1) ◽  
pp. 27-35
Author(s):  
Shu–Fen CHANG ◽  
Yung–Fu YEN ◽  
Jer–Way CHANG ◽  
Ikuo MIYAJIMA ◽  
Kuang–Liang HUANG
Keyword(s):  
Morphological Taxonomy

scholarly journals Morphological taxonomy in the present-day generative framework: A case study of English and Czech nominalization

2018 ◽  
Vol 19 (2) ◽  
pp. 1-21
Author(s):  
Ludmila Veselovská
Keyword(s):  
Theoretical Models ◽  
Distributed Morphology ◽  
Morphological Taxonomy ◽  
Parallel Data ◽  
Syntactic Derivation

Abstract This paper addresses the classification of morphemes in a generative framework. Referring to existing theoretical models of generative morphosyntax (e.g. Distributed Morphology), it demonstrates that a traditional long-standing taxonomic distinction reflects formal, i.e. structural (and derivational) distinctions. Using the well-known examples of the English multi-functional nominalizer -ing and some parallel data in Czech, the study reinterprets morphological taxonomy in terms of three levels, namely the (i) lexical, (ii) syntactic and (iii) post-syntactic insertion of grammatical formatives. It shows that the level of insertion in a syntactic derivation results in predictable (and attested) diagnostics for the multi-morpheme exponents.

scholarly journals Taxonomic diversity of Biomphalaria (Planorbidae) in São Paulo state, Brazil

2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Fernanda Pires Ohlweiler ◽  
Thays de Jesus Rossignoli ◽  
Raquel Gardini Sanches Palasio ◽  
Roseli Tuan
Keyword(s):  
Reproductive System ◽  
Morphological Analysis ◽  
Taxonomic Diversity ◽  
Molecular Data ◽  
Cytochrome C Oxidase I ◽  
Morphological Taxonomy ◽  
Tietê River ◽  
Biomphalaria Straminea ◽  
Gene Coi ◽  
Excretory Organs

Abstract: Morphological and molecular identifications were carried out for Biomphalaria occidentalis, Biomphalaria oligoza, Biomphalaria peregrina, Biomphalaria schrammi, Biomphalaria straminea and Biomphalaria tenagophila collected from 55 sites located along the upper basin of Tietê River in the Southeast Region of Brazil. Morphological analysis considered aspects of the shell, mantle, excretory organs and reproductive system. Molecular data included 122 sequences of Cytochrome C Oxidase I gene (COI). Our results showed that some shell characters, as well as other characters related to the mantle and the reproductive system, are fundamental for the identification of the six Biomphalaria species included in this study. The use of DNA barcoding together with morphological taxonomy generated more reliable results, proving to be a very useful approach, even for malacological surveillance services.

Classical Morphological Taxonomy

2020 ◽  
pp. 1-12
Author(s):  
Chi Yen ◽  
Junliang Yang ◽  
Zhongwei Yuan ◽  
Shunzong Ning ◽  
Dengcai Liu
Keyword(s):  
Morphological Taxonomy

scholarly journals Integrating DNA Barcoding and Traditional Taxonomy for the Identification of Dipterocarps in Remnant Lowland Forests of Sumatra

Plants ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 461 ◽  
Author(s):  
Carina Carneiro de Melo Moura ◽  
Fabian Brambach ◽  
Kevin Jair Hernandez Bado ◽  
Konstantin V. Krutovsky ◽  
Holger Kreft ◽  
...  
Keyword(s):  
Dna Barcoding ◽  
Evolutionary Rate ◽  
Molecular Data ◽  
Morphological Identification ◽  
Chloroplast Gene ◽  
Taxonomic Level ◽  
Morphological Taxonomy ◽  
Traditional Taxonomy ◽  
Lowland Forests ◽  
Interspecific Genetic Distance

DNA barcoding has been used as a universal tool for phylogenetic inferences and diversity assessments, especially in poorly studied species and regions. The aim of this study was to contrast morphological taxonomy and DNA barcoding, using the three frequently used markers matK, rbcL, and trnL-F, to assess the efficiency of DNA barcoding in the identification of dipterocarps in Sumatra, Indonesia. The chloroplast gene matK was the most polymorphic among these three markers with an average interspecific genetic distance of 0.020. The results of the molecular data were mostly in agreement with the morphological identification for the clades of Anthoshorea, Hopea, Richetia, Parashorea, and Anisoptera, nonetheless these markers were inefficient to resolve the relationships within the Rubroshorea group. The maximum likelihood and Bayesian inference phylogenies identified Shorea as a paraphyletic genus, Anthoshorea appeared as sister to Hopea, and Richetia was sister to Parashorea. A better discriminatory power among dipterocarp species provided by matK and observed in our study suggests that this marker has a higher evolutionary rate than the other two markers tested. However, a combination of several different barcoding markers is essential for reliable identification of the species at a lower taxonomic level.

scholarly journals Confronting the constraints of morphological taxonomy in the Botryosphaeriales

2014 ◽  
Vol 33 (1) ◽  
pp. 155-168 ◽  
Author(s):  
B. Slippers ◽  
J. Roux ◽  
M.J. Wingfield ◽  
F.J.J. van der Walt ◽  
F. Jami ◽  
...  
Keyword(s):  
Morphological Taxonomy

scholarly journals Phylogenetic Analysis of Nucleotide Sequences from the ITS Region and Biological Characterization of Nematophagous Fungi from Morelos, Mexico

2016 ◽  
Vol 2016 ◽  
pp. 1-13
Author(s):  
Gloria Sarahí Castañeda-Ramírez ◽  
Pedro Mendoza-de-Gives ◽  
Liliana Aguilar-Marcelino ◽  
María Eugenia López-Arellano ◽  
Jesús Hernández-Romano
Keyword(s):  
Biological Function ◽  
Its Region ◽  
Nematophagous Fungi ◽  
Biological Characterization ◽  
High Identity ◽  
Predatory Activity ◽  
Infective Larvae ◽  
Morphological Taxonomy

We determined the morphological taxonomy of eighteen nematophagous fungi (NF), as well as their in vitro predatory activity against Haemonchus contortus infective larvae (L3). Fungi were classified into six genera and three species, the most common of which were Monacrosporium eudermatum and Arthrobotrys oligospora. We then sequenced five NF isolates using ITS4 and ITS5 primers. These sequences showed high identity with sequences from the NCBI database (98-99%). In contrast, alignments among the same genera and species demonstrated 83–97% identity. Polymorphisms observed between Arthrobotrys and Monacrosporium appear to be associated with differences in biological function, nonspecific mutations, evolutionary processes, feeding behaviour, predatory activity, and microecosystems.

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