Abstract:
:The amplified fragment length polymorphism (AFLP) technique has been used to enhance marker density in the East Lansing reference chicken genome map, using a backcross family derived from a Red Jungle Fowl by White Leghorn mating with White Leghorn as the recurrent parent. To date, 204 AFLP markers have been added, expanding overall map coverage by about 25%. To the limits of our resolution, AFLP markers are distributed relatively evenly across the EL reference map. AFLP are about 60% as frequent in a cross within White Leghorns (line 7(2) x 6(3)) in comparison to the more divergent reference map population. Based on apparent identity of size, about 40% of the 7(2) x 6(3) cross AFLP fragments were also polymorphic in the reference map cross. Primer pairs in which one primer contains 3' extensions of three selective nucleotides and the other has two selective nucleotides successfully generated AFLP from chicken DNA, but such pairs appeared to amplify only a subset of those fragments to which they have an exact sequence match. Three different restriction enzymes with 4 bp recognition sites (TaqI, HinP1I and MspI) were found to work well with EcoRI as the rarer of the two AFLP restriction enzymes used, with HinP1I being the most effective of the three. AFLP markers are likely to provide an economical method with which to enhance framework linkage maps of chicken and probably other avian genomes.
journal_name
Anim Genetjournal_title
Animal geneticsauthors
Knorr C,Cheng HH,Dodgson JBdoi
10.1046/j.1365-2052.1999.00411.xsubject
Has Abstractpub_date
1999-02-01 00:00:00pages
28-35issue
1eissn
0268-9146issn
1365-2052journal_volume
30pub_type
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