Somebody here is looking for MAPMAKER [1], a program to construct primary
genetic linkage maps. The reference says it is available for the asking.
FTP, e-mail, whatever--the VMS version is preferred to the Unix version.
[1] Eric Lander, Philip Green, Jeff Abrahmason, Aaron Barlow, Mark J Daly,
Stephen E Lincoln, Lee Newburg, "MAPMAKER: An Interactive Computer Package
for Constructing Primary Genetic Linkage Maps of Experimental and Natual
Populations", GENOMICS 1, pp174-181 (1987).
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-Matthew P Wiener (weemba at libra.wistar.upenn.edu)