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Wondering what the difference is in the data hosted here:

Also (sidenote), would be interested to note what the difference between ftp-trace and just ftp is. But there is probably over 1TB of data in /genomes, and I assume something of "a thousand genomes" is in /1000genomes, but I'm not sure what data exactly. Would like to know what is i thse two folders, and where the 1000genomes data is exactly. It looks like /1000genomes/ftp/data/ has "sequence data", but I'm not sure how that compares to the /genomes list of species names (and I'm also not sure what "sequence data" entails exactly).

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The simplest difference is the scale and range. The aim of 1000 genome project was to provide comprehensive library of human genetic variation. DNA of individuals coming from different ethnic groups, geographic locations were sequenced and the results of the study were published here.

Genomes from NCBI come from different organisms and the number of sequenced individuals differ between species (including human). This database is constantly growing. Detailed description can be found here.

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In fact these two things are very different and I would say quite opposite.

NCBI genomes are collection of information on genomes of various species including sequences, maps, chromosomes, assemblies, and annotations. Basically it's a catalog of reference genomes.

1KG is a catalog of human genetic variations from a genome-wide association study.

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