Evolution: In Chloroplast Genomes, Anything Goes
نویسندگان
چکیده
منابع مشابه
Mitochondrial genomes: anything goes.
Mitochondria have their own genetic system – a vestigial genome originating from an endosymbiotic a-proteobacterial ancestor. The genetic function of mitochondrial DNA (mtDNA) is well-conserved, being involved in a maximum of five mitochondrial processes: invariantly in respiration and/or oxidative phosphorylation and translation, and also in transcription, RNA maturation and protein import. Re...
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Representing OT hierarchies in terms of weighted sums of violations requires in the general case exponential growth of weights; and any such weight system will only work for finite fragments of grammars in which the quantity of violations incurred by optima does not grow without bound (typically, those fragments in which input size is bounded). This conclusion is based on a worst-case analysis,...
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Fifty years ago T. M. Rybczynski [3] published a frequently referenced note in which he inaugurated a systematic investigation of the comparative statics associated with a change in the endowment of a factor. The questions that he posed are broad and fundamental: How do the prices and consumptions of final goods depend on factor endowments? How do factor prices and consumer wealth vary with cha...
متن کاملEpisodic Evolution and Adaptation of Chloroplast Genomes in Ancestral Grasses
BACKGROUND It has been suggested that the chloroplast genomes of the grass family, Poaceae, have undergone an elevated evolutionary rate compared to most other angiosperms, yet the details of this phenomenon have remained obscure. To know how the rate change occurred during evolution, estimation of the time-scale with reliable calibrations is needed. The recent finding of 65 Ma grass phytoliths...
متن کاملPhylogenomic Analysis and Dynamic Evolution of Chloroplast Genomes in Salicaceae
Chloroplast genomes of plants are highly conserved in both gene order and gene content. Analysis of the whole chloroplast genome is known to provide much more informative DNA sites and thus generates high resolution for plant phylogenies. Here, we report the complete chloroplast genomes of three Salix species in family Salicaceae. Phylogeny of Salicaceae inferred from complete chloroplast genom...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2017
ISSN: 0960-9822
DOI: 10.1016/j.cub.2017.10.049