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This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
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Plastid_DNA entered the ranking for the first time today at position #. This is its highest position ever recorded.
This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-03-30 and was most recently seen on 2026-03-30.
Plastid DNA (ptDNA), also known as chloroplast DNA in photosynthetic organisms, is the DNA located in chloroplasts, which are photosynthetic organelles located within the cells of some eukaryotic organisms, as well as some reduced plastids, such as apicoplasts. Chloroplasts, like other types of plastid, contain a genome separate from that in the cell nucleus. The existence of chloroplast DNA was identified biochemically in 1959, and confirmed by electron microscopy in 1962. The discoveries that the chloroplast contains ribosomes and performs protein synthesis revealed that the chloroplast is genetically semi-autonomous. The first complete chloroplast genome sequences were published in 1986, Nicotiana tabacum (tobacco) by Sugiura and colleagues and Marchantia polymorpha (liverwort) by Ozeki et al. Since then, tens of thousands of chloroplast genomes from various species have been sequenced.
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