Consulta: subjectFacets:"Paraphyletic"
Registros recuperados: 3
Data/hora: 09/06/2024 09:41:37

Microsatellites retain phylogenetic signals across genera in eucalypts (Myrtaceae)
Provedor de dados: 74
Autores: Ochieng,Joel W.; Steane,Dorothy A.; Ladiges,Pauline Y.; Baverstock,Peter R.; Henry,Robert J.; Shepherd,Mervyn.
The utility of microsatellites (SSRs) in reconstructing phylogenies is largely confined to studies below the genus level, due to the potential of homoplasy resulting from allele size range constraints and poor SSR transferability among divergent taxa. The eucalypt genus Corymbia has been shown to be monophyletic using morphological characters, however, analyses of intergenic spacer sequences have resulted in contradictory hypotheses- showing the genus as either equivocal or paraphyletic. To assess SSR utility in higher order phylogeny in the family Myrtaceae, phylogenetic relationships of the bloodwood eucalypts Corymbia and related genera were investigated using eight polymorphic SSRs. Repeat size variation using the average square and Nei's distance were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microsatellite phylogeny; Paraphyletic; Homoplasy; Incongruence; Eucalypts.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000600016

Subgeneric delimitation of the plant genus Phyllanthus (Phyllanthaceae)
Provedor de dados: 16
Autores: Bouman, R.W.; Keβler, P.J.A.; Telford, I.R.H.; Bruhl, J.J.; Welzen, P.C. van.
Over two centuries of taxonomic studies on the species rich genus Phyllanthus have culminated in a broad and complicated classification with many subgenera and (sub)sections. Past taxonomic work has only focused on local revisions, mostly because of the size of the genus. In this study we aim to summarize most of the taxonomic work in a list containing the infrageneric delimitations of Phyllanthus. This work will serve as a reference, placing most currently recognized species in subgenera and if possible, in sections for further study. Here we recognize 880 species of Phyllanthus, classified in 18 subgenera, 70 sections and 14 subsections. A few taxonomic changes are necessary to reconcile published phylogenetic data with the current classification....
Tipo: Article / Letter to the editor
Palavras-chave: Infrageneric taxonomy; Pantropical; Paraphyletic; Phyllanthaceae; Phyllanthus.
Ano: 2018
URL: http://www.repository.naturalis.nl/record/670219

Response paper: Morphometric article by Mejía et al. 2015 alluding genera Herichthys and Nosferatu displays serious inconsistencies
Provedor de dados: 83
Autores: Maza-Benignos,Mauricio de la; Lozano-Vilano,Ma. de Lourdes; García-Ramírez,María Elena.
ABSTRACT In the present response paper, the article entitled "Morphometric variation of the Herichthys bartoni (Bean, 1892) species group (Teleostei: Cichlidae): How many species comprise H. labridens (Pellegrin, 1903)?" by Mejía et al . 2015 is critically reviewed. The current review pinpoints some of the more conspicuous conceptual inconsistencies and fundamental errors found in the study by Mejía et al . (2015), It is contended that the authors fail to provide any new insights into the complex biogeography and evolutionary history of the Nosferatu and Herichthys genus groups, and that while results of their Cox1 molecular analysis are comparable to those by De la Maza-Benignos et al . (2015), the conclusions of the two studies are not comparable. In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cox 1; Genera; Geometric morphometrics; Monophyly requirement; Paraphyletic; Species concepts.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000400673