1. This project includes 4 data sets --- BXAnewMB.csv (merged by two separated data sets of female and male mice in BxA cross by author Ioannis Stylianou), Ch3newMB.csv, Ch8newMB.csv and Ch11newMB.csv (chromosome substitution strains). The maps of those files have been updated individually and the new data files were saved as "Stylianou2006b_BxA_B37_Data.csv", "Stylianou2006c_CSS3_B37_Data.csv", "Stylianou2006d_CSS8_B37_Data.csv" and "Stylianou2006e_CSS11_B37_Data.csv". These files are ready to be read into Rqtl. This is the readme file of the classical F2 intercross between B6 and A/J; 2. Generate a description file of the project, it includes the general information, definitions of the phenotypes, description of the genotypes and information of the missing markers; 3. For the genotypes of this cross: (cM=centimorgan, bp=basepair) (1) Convert the format of markers into standard SNP and save the changes in B37 data file; (2) Change the three letters of genotypes to uppercase "A","H","B" in the B37 data file (the original file has both small and big letters in genotypes); (3) Could not find any information of marker "D02.020" and "D04.049" in Cox genetic map or current databases. The problem may caused by the nonstandard marker names of them. Use interpolating algorithm in Rqtl to calculate the B37 cM position, the bp positions are unavailable (This type of marker is highlighted with aqua color in description file); (4) The bp position of marker ""D8Mit280" is missing in Cox genetic map, assign the position of it from current MGI database (This marker is highlighted with orange color and please see description file for details); (5) Some markers are at the same position in B37 Cox map; 4. For the phenotypes of the cross: The testing age of mice was not in paper, the information is found from reference, see Doorenbos et al Genetics (2008; 179(1):693-699).); 5. Except the "csv" file mentioned above, I also saved the description file, original data, data with B37 map, data process and list of missing markers together as a big excel file ("Stylianou2006b_B6xA_B37_Data.xlsx") (first curating work finished at 6/18/2009, files updated at 7/7/2009, 8/5/2010, 2/4/2011). 6. Information were updated on 5/25/2012: Change the name of the map (from "Shifman" to "Cox" map) in description and readme file, add a map reference in description file.