14 documents found, page 1 of 2
Putting European lampreys into perspective: A global‐scale multilocus phylogeny...
Pereira, Ana; Levy, André; Vukić, Jasna; Šanda, Radek; Levin, Boris; Freyhof, Jörg; Geiger, Matthias; Choleva, Lukáš; Francisco, Sara M.; Robalo, JoanaPrevious studies on the phylogenetic relationships between lamprey species relied either on a low number of morphological characters related to the feeding apparatus, or on a low number of molecular mitochondrial DNA markers. Here, we apply a multilocus approach to assess the phylogenetic relationships of northern hemisphere lampreys, with a special emphasis on the 17 European species. The study comprises two m...
Not so sluggish : The success of the Felimare picta complex (Gastropoda, Nudibr...
Almada, Frederico José Oliveira de; Levy, André; Robalo, Joana IsabelThe molecular phylogeny of the Atlanto-Mediterranean species of the genus Felimare, particularly those attributed to the species F. picta, was inferred using two mitochondrial markers (16S and COI). A recent revision of the Chromodorididae clarified the taxonomic relationships at the family level redefining the genus Felimare. However, conflicting taxonomic classifications have been proposed for a restrict grou...
Phylogenenetic approach of the section Bulbocodii D.C. of Narcissus based on cp...
Fonseca, João Paulo; Levy, André; Henriques, Romina; Costa, José Carlos; Neto, Carlos; Robalo, Joana IsabelIn this paper, we analyzed the phylogeny of the section Bulbocodii (genus Narcissus; Amarillydaceae) using the matK and trnL-F fragments of cpDNA in order to review the validity of the recognized taxa. Our results indicate that Narcissus obesus should be considered a valid species, and that N. blancoi is a distinct taxon. In addition, seven previously recognized species, N. juressianus, N. subnivalis, N. graell...
Gaidropsarus (Gadidae, Teleostei) of the North Atlantic Ocean: A brief phylogen...
Francisco, Sara Martins; Robalo, Joana Isabel; Stefanni, Sergio; Levy, André; Almada, Vítor CarvalhoThe phylogenetic relationships among theNorth Atlantic Gaidropsarus and between the three Gaidropsarinae genera Gaidropsarus, Ciliata and Enchelyopus are reviewed with the hitherto most comprehensive taxonomic sampling of this group. Phylogenetic results (maximum parsimony, maximum likelihood and Bayesian inference) based on nuclear (rhodopsin) and concatenated mitochondrial (12s, 16s and cytb)markers clearly s...
Keeping it simple: Flowering plants tend to retain, and revert to, simple leaves
Geeta, R.; Dávalos, Liliana M.; Levy, André; Bohs, Lynn; Lavin, Mathew; Mummenhoff, Klaus; Sinha, Neelima; Wojciechowski, Martin F.• A wide range of factors (developmental, physiological, ecological) with unpredictable interactions control variation in leaf form. Here, we examined the distribution of leaf morphologies (simple and complex forms) across angiosperms in a phylogenetic context to detect patterns in the directions of changes in leaf shape. • Seven datasets (diverse angiosperms and six nested clades, Sapindales, Apiales, Papavera...
The lusitania province as a center of diversification: The phylogeny of the gen...
Levy, André; Wirtz, Peter; Floeter, Sergio Ricardo; Almada, Vítor CarvalhoThe Lusitania Province has been considered a transition zone between the Atlantic northern cold waters and Tropical warm waters. Tropical species have expanded their ranges during warm periods and either retreated during cold periods or survived in local refuges. Successive waves of dispersion into this Province could have favored diversification through geographic isolation. Taxa that remained in this large Pr...
Pattern, process and the evolution of meaning: Species and units of selection
Levy, AndréMany of the fundamental concepts of biology lack consensual, precise definitions. Partly, this is due to a contrast between our discrete language and the continuous character of nature. Some debates over these concepts are confounded by the use of the same terms with different specific meanings, indicating a possible need for an expanded scientific lexicon. Words have their own histories, and frequently scienti...
Phylogenetic analysis of peri-mediterranean blennies of the genus Salaria: Mole...
Almada, Vítor Carvalho; Robalo, Joana Isabel; Levy, André; Freyhof, J.; Bernardi, Giacomo; Doadrio, IgnacioIn this paper, the phylogenetic relationships of the marine blenny Salaria pavo and the freshwater S. fluviatilis and S. economidisi were analyzed using four molecular markers: the mitochondrial 12S rRNA, 16S rRNA, and the control region and the nuclear first intron of the S7 ribosomal protein. The monophyly of Salaria is supported, as well as that of S. pavo and that of all the freshwater members of Salaria. T...
Historical biogeography of european leuciscins (Cyprinidae): Evaluating the Lag...
Levy, André; Doadrio, Ignacio; Almada, Vítor CarvalhoABSTRACT Aim To test the importance of the Lago Mare stage of the Messinian Salinity Crisis for the dispersal and diversification of European leuciscins (Cyprinidae: Leuciscinae). Location Europe. Methods Cytochrome b sequences of European leuciscins were employed to investigate phylogenetic relationships among species, using Bayesian inference, and to estimate times of diversification, using a relaxed molecula...
Reclassification of Lepadogaster candollei based on molecular and meristic evid...
Almada, Frederico José Oliveira de; Henriques, Miguel; Levy, André; Pereira, Ana Martins; Robalo, Joana Isabel; Almada, Vítor CarvalhoInexistente