Advanced intercross lines (AILs), first introduced by Darvasi and Soller [3], are one such strategy that is capable of producing a population able to narrow mapping intervals for all QTLs for a given trait at once, given genotype information across the relevant intervals.
This very narrow mapping interval was achieved in a matter of months as opposed to years, although it is important to consider that we benefitted from high quality phenotypic data and germplasm to assemble the bulks.
Start with the narrow electoral map that leaves just a few states truly up for grabs every four years, North Carolina being one of the prized ones.
To further narrow the map location of this gene, the tumor response of two additional subcongenic mouse strains, C57BL/6.Psl1B4dba and C57BL/6.Psl1B9dba (Table 2, Figure 1B), was examined.
Block (1991) calls this the "mapping theory," since on this account a narrow content maps environments into broad contents.
Also, genome-sequence-based InDel primers allow us to quickly design and add more markers to the target interval on the chromosome in order to narrow the mapping interval.
This approach narrowed the mapping interval to a 1.0-Mb region on LG II.
After identifying new molecular markers within this interval (Table 1), we narrowed the mapping region to ~160 kb between the markers F26K24-9+6 and F28J15-3+4.
The advertisers can actually browse the bids in a map, narrow down their search based on different criteria, and even see what their ad will look like in a given location.
If the past few years have seen maps narrow their attention to the individual's position, the next few could see maps narrow their sights further in on the individual's own point of view.
Within the narrow terrain he mapped at the start, with its melancholy and blend of private with literary iconography, Bacon didn't just repeat himself.
