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Horizontal Gene Transfer Involving Chloroplasts [PDF]
International Journal of Molecular Sciences, 2021 Horizontal gene transfer (HGT)- is defined as the acquisition of genetic material from another organism. However, recent findings indicate a possible role of HGT in the acquisition of traits with adaptive significance, suggesting that HGT is an important driving force in the evolution of eukaryotes as well as prokaryotes.
Lidia Skuza, Ewa Filip
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Transients in chloroplast gene transcription
Biochemical and Biophysical Research Communications, 2008Transcriptional regulation of chloroplast genes is demonstrated by Quantitative Polymerase Chain Reaction (qPCR). These genes encode apoproteins of the reaction centres of photosystem I and photosystem II. Their transcription is regulated by changes in wavelength of light selectively absorbed by photosystem I and photosystem II, and therefore by the ...
Sujith, Puthiyaveetil, John F, Allen
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Chloroplast ribosomal RNA genes in the chloroplast DNA of Euglena gracilis
Journal of Molecular Biology, 1973Euglena chloroplast DNA has a buoyant density in CsCI of 1.686. Shearing this DNA produces a satellite band at density 1.700. The satellite, easily lost during preparative CsCI gradient centrifugation of chloroplast DNA, contains the genes for chloroplast ribosomal RNA. Pure Euglena chloroplast DNA is shown to contain one set of ribosomal RNA genes for
J R, Rawson, R, Haselkorn
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Regulated Chloroplast Gene Expression in Chlamydomonas
2021The green unicellular alga Chlamydomonas reinhardtii has emerged as a very attractive model system for chloroplast genetic engineering. Algae can be transformed readily at the chloroplast level through bombardment of cells with a gene gun and transformants can be selected using antibiotic resistance or phototrophic growth. An inducible chloroplast gene
Jean-David, Rochaix +2 more
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Chloroplast ribosomal proteins and their genes
Plant Science, 1990Abstract Recent works on chloroplast ribosomal proteins and their genes are reviewed. Following topics are included: prokaryotic features; organization and expression of chloroplast-encoded ribosomal protein genes in land plants and in Algae; nuclear encoded ribosomal protein genes; assembly of chloroplast ribosomes; hypothesis on gene transfer from ...
Regis Mache
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Gene transfer to the nucleus and the evolution of chloroplasts
Nature, 1998Photosynthetic eukaryotes, particularly unicellular forms, possess a fossil record that is either wrought with gaps or difficult to interpret, or both. Attempts to reconstruct their evolution have focused on plastid phylogeny, but were limited by the amount and type of phylogenetic information contained within single genes.
W, Martin +5 more
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Chloroplast gene expression and promoter identification in chloroplast extracts
1986Publisher Summary The genetic apparatus in plastids is a separate transcription entity in plant cells. Genes for ribosomal RNA, most transfer RNAs (tRNAs), and for a substantial number of proteins for photosystems I and II, stromal enzyme complexes and ribosomes, have been located on the defined segments of plastid genomes, and their sequences have ...
W, Gruissem +3 more
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Newly identified groups of genes in chloroplasts
Trends in Biochemical Sciences, 1988Abstract The complete nucleotide sequences of the chloroplast genomes of a liverwort ( Marchantia polymorpha ) and a higher plant ( Nicotiana tabacum ) have been determined. A comparison of these demonstrates that chloroplast gene number and organization has been highly conserved in evolution. More importantly, analysis of these sequences has resulted
K, Ohyama, T, Kohchi, T, Sano, Y, Yamada
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In vitro transcription of chloroplast protein genes
1986Publisher Summary This chapter discusses the methods that are useful for the in vitro analysis of plastid gene expression. Many plastid genes have multiple transcripts in vivo that may be the result of transcription initiation and subsequent RNA processing events.
E M, Orozco +3 more
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