Y-axis is # of element reported on a certain genome that has been scrambled. X - axis is the size of the sliding window within which this random shuffling was performed. The assumption made here by the author, and I am advancing that notion, (not sure if it is entirely correct or not, nevertheless) that when I discover elements on a scrambled genome, it has to be, by definition, a false positive
Conversely, the elements that I discover and report on the original, unshuffled genome, have to be, by definition, true positives
Just the comparison of original Vs unscrambled genomes in terms of # of elements reported in each case, was used by the software author to report FDR. FDR = (# element in shuffled genome) / (# elements in original genome) * 100 (in %)
My chart does NOT show the # of elements in the original genome without any DNA random shuffling. Those numbers are as follows:
A. thaliana (original genome, no DNA shuffle) - 885 elements
B. rapa (original genome, no DNA shuffle) - 3686 elements
M. truncatula (original genome, no DNA shuffle) - 1808 elements
As expected, these numbers above, for the unshelled genomic DNA as input, yields higher # of elements than for the same genomes that have undergone random DNA shuffling (irrespective of what the sliding window size is. So at least in this context, I am seeing what is 'expected' in terms of the shuffled genome serving as a negative control, and yielding fewer # of elements than for randomly shuffled genomes.
In reply to Re^6: Window size for shuffling DNA?
by onlyIDleft
in thread Window size for shuffling DNA?
by onlyIDleft
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