For example, does the "90% extinction" criterion mean sorting the non-trunk descendant isolates by date, and finding the 90th percentile rank value of the isolate dates?
A third, novel genetic element, designated ICE SpPN1, was identified in the genome of an isolate dated 1972.
Consequently, we plotted root-to-tip distances of the PSC-1 and PSC-2 isolates against isolation date and geographic location.
The isolates date from 1937 to 1992 for the former group and from 1921 to 1965 for the latter group.
The results page returned from any query includes eight columns of information: Environmental Accession, Isolate Accession, Organism (genus and species), Region (island), Details (collection location), Collected (date), Isolated (date) and Sequences (total number of DNA sequences).
The first known clinical isolates date from 2008 (12 ), and the first evidence of human gut carriage of blaNDM-1 was found in samples collected in Dhaka (13 ) a month before our study.
The genomes of the isolate of the index case, and two SMI-049 isolates with isolation dates differing from the index strain by 9 years, were sequenced by massive parallel DNA sequencing using the 454-platform.
From the NCBI Virus Variation Database24, we found 91 and 16 strains from humans and camels, respectively, with known isolated dates.
To study molecular evolutionary changes in EBOV genomes in the current epidemic, we obtained 1020 strains, for which the isolated dates are given.
To study the origins of the three 20th century pandemic flu viruses, Robert Webster of St . JudeChildren's Research Hospital in Memphis, Tennessee, and his colleagues took DNA sequences of thousands of flu isolates dating back as far as the 1930s--as 1930s--ashe 1918 strain--and fed them into models that calculate the most likely evolutionary relationships betwell them.
