Plastid Genome
Mostrando 1-12 de 111 artigos, teses e dissertações.
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1. The complete chloroplast genome sequence of Vincetoxicum mongolicum (Apocynaceae), a perennial medicinal herb
Abstract Vincetoxicum mongolicum Maxim. (1876), is a perennial medicinal herb, widely distributed in the Loess Plateau of China. Here, we sequenced, assembled, and annotated the complete chloroplast (cp) genome of V. mongolicum, and compared the highly variable gene regions and phylogenetic positions between V. mongolicum and other related species. Results s
Genetics and Molecular Biology. Publicado em: 2023
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2. [PROVISIONAL] Low cytomolecular diversification in the genus Stylosanthes Sw. (Papilionoideae, Leguminosae)
Abstract Stylosanthes (Papilionoideae, Leguminosae) is a predominantly neotropical genus with ~ 48 species that includes worldwide important forage species. This study presents the chromosome number and morphology of eight species of the genus Stylosanthes (S. acuminata, S. gracilis, S. grandifolia, S. guianensis, S. hippocampoides, S. pilosa, S. macrocephal
Genet. Mol. Biol.. Publicado em: 19/08/2019
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3. Análise da estrutura filogeográfica das espécies do grupo Pilosocereus Aurisetus (Cactaceae) utilizando marcadores moleculares do genoma do cloroplasto (cpDNA)
PILOSOCEREUS AURISETUS é um grupo taxonômico composto por oito espécies de cactos colunares que ocorrem associadas a afloramentos rochosos em ambientes xéricos. Assim como outras espécies xerófitas encontradas fora do domínio da Caatinga, as populações das espécies do grupo P. AURISETUS exibem um padrão de distribuição descontínua dentro do dom
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/05/2012
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4. Taxonomia das espécies sul-brasileiras de Calydorea Herbert (Iridaceae) e caracterização por DNA "Barcode"
This study aimed a taxonomic revision of the genus Calydorea from southern Brazil, providing the basis for identification of the species, by means of a dichotomous key, illustrations and images of plants in the natural environment. Another aim was to verify the effectiveness of use of target gene sequences to discriminate species, in the light of the propose
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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5. Identification and in silico analysis of the Citrus HSP70 molecular chaperone gene family
The completion of the genome sequencing of the Arabidopsis thaliana model system provided a powerful molecular tool for comparative analysis of gene families present in the genome of economically relevant plant species. In this investigation, we used the sequences of the Arabidopsis Hsp70 gene family to identify and annotate the Citrus Hsp70 genes represente
Genetics and Molecular Biology. Publicado em: 2007
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6. Plastome-Genome Interactions Affect Plastid Transmission in Oenothera
Plastids of Oenothera, the evening primrose, can be transmitted to the progeny from both parents. In a constant nuclear background, the frequency of biparental plastid transmission is determined by the types of plastid genomes (plastomes) involved in the crosses. In this study, the impact of nuclear genomes on plastid inheritance was analyzed. In general, th
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7. The Rice Nuclear Genome Continuously Integrates, Shuffles, and Eliminates the Chloroplast Genome to Cause Chloroplast–Nuclear DNA FluxW⃞
Plastid DNA fragments are often found in the plant nuclear genome, and DNA transfer from plastids to the nucleus is ongoing. However, successful gene transfer is rare. What happens to compensate for this? To address this question, we analyzed nuclear-localized plastid DNA (nupDNA) fragments throughout the rice (Oryza sativa ssp japonica) genome, with respect
American Society of Plant Biologists.
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8. Function and evolution of a minimal plastid genome from a nonphotosynthetic parasitic plant.
Complete nucleotide sequencing shows that the plastid genome of Epifagus virginiana, a nonphotosynthetic parasitic flowering plant, lacks all genes for photosynthesis and chlororespiration found in chloroplast genomes of green plants. The 70,028-base-pair genome contains only 42 genes, at least 38 of which specify components of the gene-expression apparatus
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9. Synthesis and degradation of dinoflagellate plastid-encoded psbA proteins are light-regulated, not circadian-regulated
In many dinoflagellate species, the plastid genome has been proposed to exist as a limited number of single-gene minicircles, and many genes normally found in the plastid genome are nuclear-encoded. Unlike the nuclear-encoded plastid-directed gene products whose expression is often regulated by the circadian clock, little is known about expression of minicir
National Academy of Sciences.
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10. Long regions of homologous DNA are incorporated into the tobacco plastid genome by transformation.
We investigated the size of flanking DNA incorporated into the tobacco plastid genome alongside a selectable antibiotic resistance mutation. The results showed that integration of a long uninterrupted region of homologous DNA, rather than of small fragments as previously thought, is the more likely event in plastid transformation of land plants. Transforming
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11. Chloroplast DNA Levels and the Control of Chloroplast Division in Light-Grown Wheat Leaves 1
Plastids at different stages of development were isolated from light-grown wheat (Triticum aestivum, var. Maris Dove) seedling leaves, and the average chloroplast DNA (cpDNA) per plastid at each developmental stage was measured directly. In the earliest stages of development, the number of plastids per cell and the amount of cpDNA per cell increased with cel
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12. Extrachromosomal elements in tobacco plastids.
The plastid genome of higher plants is a circular double-stranded DNA molecule which is present in multiple identical copies. We report here an 868-bp plastid DNA minicircle, NICE1, that formed in tobacco (Nicotiana tabacum) plastids during transformation, as an unexpected product of homologous recombination. Such extrachromosomal elements are normally absen