Consulta: subjectFacets:"Molecular phylogenetics"
Registros recuperados: 9
Data/hora: 10/06/2024 17:57:04

Studies on diversity and evolution of Iridaceae species in southern Brazil
Provedor de dados: 74
Autores: Souza-Chies,Tatiana T.; Santos,Eliane Kaltchuk dos; Eggers,Lilian; Flores,Alice Mainieri; Alves,Eudes M. Stiehl; Fachinetto,Juliana; Lustosa,Juliana; Corrêa,Lauís Brisolara; Tacuatiá,Luana Olinda; Piccoli,Paula; Miz,Rogéria Beatriz.
Plants of the family Iridaceae are well represented in the grassland vegetation of southern Brazil, occurring in the Pampa and Atlantic Forest biomes. Nevertheless, little is known about the taxonomy and evolution of Iridaceae species in southern Brazil. The main goal of this review is to compile published information about South American Iridaceae, and to discuss the evolution and genetic diversity of the family presenting our own research data in the light of the published literature. The main focus is on the genera Calydorea, Cypella, Herbertia, and Sisyrinchium. Aspects of reproductive system and of pollinator attraction are also discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytotaxonomy; Molecular phylogenetics; Iridoideae; Population genetics; Diversity.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000600018

Peripatric speciation drives diversification and distributional pattern of reef Hermit Crabs (Decapoda: Diogenidae: Calcinus)
Provedor de dados: 5
Autores: Malay, Maria Celia (machel) D.; Paulay, Gustav.
The diversity on coral reefs has long captivated observers. We examine the mechanisms of speciation, role of ecology in speciation, and patterns of species distribution in a typical reef-associated clade-the diverse and colorful Calcinus hermit crabs-to address the origin of tropical marine diversity. We sequenced COI, 16S, and H3 gene regions for similar to 90% of 56 putative species, including nine undescribed, "cryptic" taxa, and mapped their distributions. Speciation in Calcinus is largely peripatric at remote locations. Allopatric species pairs are younger than sympatric ones, and molecular clock analyses suggest that &gt; 2 million years are needed for secondary sympatry. Substantial niche conservatism is evident within clades, as well as a few major...
Tipo: Text
Palavras-chave: Allopatric speciation; Biodiversity; Biogeography; Color pattern evolution; Circumtropical speciation; Coral reef; Coral triangle; Cryptic species; Crustacea; ESU; Indo-Malayan hot spot; Molecular phylogenetics; Sympatric speciation.
Ano: 2010
URL: https://archimer.ifremer.fr/doc/00495/60623/64108.pdf

Phylogenetic position of the coral symbiont Ostreobium (Ulvophyceae) inferred from chloroplast genome data
Provedor de dados: 5
Autores: Verbruggen, Heroen; Marcelino, Vanessa R.; Guiry, Michael D.; Cremen, Ma. Chiela M.; Jackson, Christopher J.
The green algal genus Ostreobium is an important symbiont of corals, playing roles in reef decalcification and providing photosynthates to the coral during bleaching events. A chloroplast genome of a cultured strain of Ostreobium was available, but low taxon sampling and Ostreobium's early-branching nature left doubt about its phylogenetic position. Here, we generate and describe chloroplast genomes from four Ostreobium strains as well as Avrainvillea mazei and Neomeris sp., strategically sampled earlybranching lineages in the Bryopsidales and Dasycladales respectively. At 80,584 bp, the chloroplast genome of Ostreobium sp. HV05042 is the most compact yet found in the Ulvophyceae. The Avrainvillea chloroplast genome is similar to 94 kbp and contains...
Tipo: Text
Palavras-chave: Bryopsidales; Chloroplast genome; Coral symbiosis; Dasycladales; Molecular phylogenetics; Ostreobium; Phylogenomics.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00659/77091/78412.pdf

Molecules, morphology, and the monophyly of diapsid reptiles
Provedor de dados: 16
Autores: Lee, Michael S.Y.
The morphological and molecular evidence for higher-level reptile relationships is reassessed, A combined analysis of 176 osteological, 40 soft anatomical, and 2903 (1783 aligned) molecular characters in 28 amniote taxa yields the traditional reptile tree. Synapsids (including mammals) are the sister taxon to all other amniotes, including all extant reptiles. Turtles group with anapsid parareptiles and fall outside a monophyletic Diapsida. Within diapsids, squamates and Sphenodon form a monophyletic Lepidosauria, and crocodiles plus birds form a monophyletic Archosauria. This tree is identical to the tree strongly supported by the osteological data alone when fossils are included. In a combined analysis the strong osteological signal linking turtles with...
Tipo: Article / Letter to the editor
Palavras-chave: Reptilia; Testudines; Cladistics; Osteology; Fossils; Molecular phylogenetics.
Ano: 2001
URL: http://www.repository.naturalis.nl/record/534306

The tribal placement of the monospecific tropical African genus Petitiocodon (Rubiaceae) based on molecular data and morphology
Provedor de dados: 16
Autores: Tosh, J.; Block, P. De; Davis, A.P.; Dessein, S.; Robbrecht, E.; Smets, E.F.
A first phylogenetic placement of Petitiocodon based on molecular sequence data from three plastid regions (accD-psa1, rpl16 and trnL-F) is presented, in conjunction with a reassessment of morphology for the genus. Our results do not support an evolutionary affinity between Petitiocodon and Tricalysia (Coffeeae) as suggested by previous studies, but they confirm other research that Petitiocodon and Didymosalpinx are distinct genera. Placement of Petitiocodon in tribe Octotropideae is well-supported on the basis of molecular data and floral and carpological characters.
Tipo: Article / Letter to the editor
Palavras-chave: Octotropideae; African flora; AccD-psa1; Rpl16; TrnL-F; Molecular phylogenetics; Placentation.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/525286

Multilocus DNA sequencing of the whiskey fungus reveals a continental‐scale speciation pattern
Provedor de dados: 16
Autores: Scott, J.A.; Ewaze, J.O.; Summerbell , R.C.; Arocha-Rosete, Y.; Maharaj, A.; Guardiola, Y.; Saleh, M.; Wong, B.; Bogale, M.; Hara, M.J. O’; Untereiner, W.A.
Baudoinia was described to accommodate a single species, B. compniacensis. Known as the ‘whiskey fungus’, this species is the predominant member of a ubiquitous microbial community known colloquially as ‘warehouse staining’ that develops on outdoor surfaces subject to periodic exposure to ethanolic vapours near distilleries and bakeries. Here we examine 19 strains recovered from environmental samples near industrial settings in North America, South America, the Caribbean, Europe and the Far East. Molecular phylogenetic analysis of a portion of the nucLSU rRNA gene confirms that Baudoinia is a monophyletic lineage within the Teratosphaeriaceae (Capnodiales). Multilocus phylogenetic analysis of nucITS rRNA (ITS1-5.8S-ITS2) and partial nucLSU rRNA,...
Tipo: Article / Letter to the editor
Palavras-chave: Dothideomycetes; Extremophilic fungi; Microcolonial fungi; Molecular phylogenetics; Warehouse staining.
Ano: 2016
URL: http://www.repository.naturalis.nl/record/611850

Molecular phylogenetic relationships of Inchoatia taxa
Provedor de dados: 16
Autores: Uit de Weerd, D.R.; Schneider, D.; Gittenberger, E.
The molecular phylogenetic relationships between nominal (sub)species within the Greek land snail genus Inchoatia are examined.
Tipo: Article / Letter to the editor
Palavras-chave: Gastropoda; Clausiliidae; Inchoatia; Greece; Molecular phylogenetics; 42.73.
Ano: 2009
URL: http://www.repository.naturalis.nl/record/311935

The tribal placement of the monospecific tropical African genus Petitiocodon (Rubiaceae) based on molecular data and morphology
Provedor de dados: 16
Autores: Tosh, J.; De Block, P.; Davis, A.P.; Dessein, S.; Robbrecht, E.; Smets, E.
A first phylogenetic placement of Petitiocodon based on molecular sequence data from three plastid regions (accD-psa1, rpl16 and trnL-F) is presented, in conjunction with a reassessment of morphology for the genus. Our results do not support an evolutionary affinity between Petitiocodon and Tricalysia (Coffeeae) as suggested by previous studies, but they confirm other research that Petitiocodon and Didymosalpinx are distinct genera. Placement of Petitiocodon in tribe Octotropideae is well-supported on the basis of molecular data and floral and carpological characters.
Tipo: Article / Letter to the editor
Palavras-chave: Octotropideae; African flora; AccD-PSA1; Rpl16; TrnL-F; Molecular phylogenetics; Placentation; 42.58.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/449521

An integrated approach clarifies the cryptic diversity in Hypostomus Lacépède 1803 from the Lower La Plata Basin
Provedor de dados: 42
Autores: CARDOSO,YAMILA P.; BRANCOLINI,FLORENCIA; PROTOGINO,LUCILA; PARACAMPO,ARIEL; BOGAN,SERGIO; POSADAS,PAULA; MONTOYA-BURGOS,JUAN I.
Abstract Abstract: Hypostomus commersoni Valenciennes 1836, Hypostomus cordovae (Günther 1880) and Hypostomus laplatae (Eigenmann 1907) have been little studied since their original descriptions. This study shows a comprehensive review of these species from the Lower La Plata Basin, including their taxonomic history, distribution, color patterns, morphology, and ecological and molecular phylogenetic data. Morphological and phylogenetic analyses based on D-loop sequences suggested that H. commersoni can be separated into two subclades, or subgroups. Based on these results and on the non-overlapping distribution range of the two subclades, we conclude that they represent two distinct species, thereby revalidating H. spiniger. The results also suggest that H....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Argentina; Brazil; Freshwater fishes; Molecular phylogenetics; Paraná Basin.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300604