Consulta: subjectFacets:"CpDNA"
Registros recuperados: 5
Data/hora: 19/05/2024 04:08:45

Anetholea anisata transferred to, and two new Australian taxa of, Syzygium (Myrtaceae)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Craven, L.A.; Biffin, E.
The distinction between Anetholea and Syzygium is lessened due to the occurrence of epigeal germination and dry fruitedness in the latter genus also and it is concluded that Anetholea is better placed within Syzygium. Analysis of sequence data from nuclear ribosomal DNA and the chloroplast genome support this conclusion. The sole species of Anetholea, A. anisata, is transferred to Syzygium and the new combination, S. anisatum (Vickery) Craven &amp; Biffin, made. Syzygium wilsonii subsp. cryptophlebium is reinstated at species rank, necessitating the new combination, S. cryptophlebium (F. Muell.) Craven &amp; Biffin. Two new taxa of Syzygium are described from Australia, S. wilsonii subsp. epigaeum Craven &amp; Biffin and S. maraca Craven &amp; Biffin.
Tipo: Article / Letter to the editor
Palavras-chave: Anetholea; Syzygium; Myrtaceae; CpDNA; NrDNA.
Ano: 2005
URL: http://www.repository.naturalis.nl/record/525076

Araucaria angustifolia chloroplast genome sequence and its relation to other Araucariaceae
Provedor de dados: Genetics and Molecular Biology
Autores: Brandão,José Henrique S. G.; Rodrigues,Nureyev F.; Eguiluz,Maria; Guzman,Frank; Margis,Rogerio.
Abstract Araucaria angustifolia is endemic to southern Brazil. Known as Brazilian pine, A. angustifolia is the only native conifer species with economic and social relevance in this country. Due to massive exploitation, it has suffered a significant population decline and currently is classified as critically endangered. This encouraged the scientific community to investigate genetic features in Brazilian pine to increase resources for management and preservation. In this work, RNA-Seq data was used to determine the complete nucleotide sequence of the A. angustifolia chloroplast genome (cpDNA). The cpDNA is 146,203 bp in length and contains 122 genes, including 80 protein-coding genes, 5 ribosomal RNA genes, and 37 tRNA genes. Coding regions comprise...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian pine; Plastid; Genome; CpDNA; Conservation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000400671

Comparative analysis of the complete chloroplast genomes from six Neotropical species of Myrteae (Myrtaceae)
Provedor de dados: Genetics and Molecular Biology
Autores: Rodrigues,Nureyev F.; Balbinott,Natalia; Paim,Igor; Guzman,Frank; Margis,Rogerio.
Abstract Myrteae is the largest and most diverse tribe within Myrtaceae and represents the majority of its diversity in the Neotropics. Members of Myrteae hold ecological importance in tropical biomes for the provision of food sources for many animal species. Thus, due to its several roles, a growing interest has been addressed to this group. In this study, we report the sequencing and de novo assembly of the complete chloroplast (cp) genomes of six Myrteae species: Eugenia brasiliensis, E. pyriformis, E. nitida, Myrcianthes pungens, Plinia edulis and Psidium cattleianum. We characterized genome structure, gene content, and identified SSRs to detect variation within Neotropical Myrteae. The six newly sequenced plastomes exhibit a typical quadripartite...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CpDNA; Genomic resource; Populational genetics; Plastid; Conservation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400801

First molecular analysis of the genus Bryopsis (Bryopsidales, Chlorophyta) from Brazil, with an emphasis on the Pernambuco coast
Provedor de dados: Acta Botanica Brasilica
Autores: Oliveira,Marcella Guennes Tavares de; Pereira,Sonia Maria Barreto; Benko-Iseppon,Ana Maria; Balbino,Valdir Queiroz; Silva Junior,Wilson José da; Ximenes,Caroline Feijão; Carvalho,Maria de Fátima de Oliveira; Cassano,Valéria.
ABSTRACT The green algal genus Bryopsis has simple morphology and high phenotypic plasticity, making it difficult to identify its species based on morphological characteristics alone. This study evaluated the diversity of Bryopsis in northeastern Brazil (the State of Pernambuco), based on morphological and molecular data using the markers tufA and rbcL. Molecular analyses were incongruent with morphology, demonstrating the existence of cryptic and polymorphic species in the genus. Of the four taxa cited for the area based only on morphological data (Bryopsis corymbosa, B. pennata, B. plumosa, Bryopsis sp.), only B. pennata was recorded. Typical specimens of B. pennata and B. plumosa were grouped with low genetic divergence, 0-0.21 % for tufA and no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bryopsis; CpDNA; Macroalgae; RbcL; Taxonomy; TufA.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062021005002206

Molecular characterization of the invasive aquatic macrophyte Hydrilla verticillata (Hydrocharitaceae) in Brazil
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: LUCIO,LÉIA CAROLINA; THOMAZ,SIDINEI M.; PRIOLI,SÔNIA MARIA A.P.; BONI,TALGE A.; OLIVEIRA,ALESSANDRA V. DE; PRIOLI,ALBERTO JOSÉ.
Abstract: Invasive populations of macrophytes are widely distributed and have been successfully introduced and established in freshwater habitats. Hydrilla verticillata was first recorded in 2005 in the Upper Paraná River floodplain and in 2007 at the Itaipu Reservoir (Brazil-Paraguay border, ca. 300 km downstream from its first record). However, its genetic variability within different sites in South America is unknown. We used nucleotide sequences corresponding to the trnL-trnF fragment cpDNA to genetically characterize populations of H. verticillata in different ecosystems of the Upper Paraná River basin. The results indicated an absence of genetic differentiation within and between populations of the basin, and even individuals collected 600 km apart...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CpDNA; Genetic variability; TrnL-trnF; Upper Paraná River basin.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500623