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sheryl99

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Black Swiss
TRADITIONAL OUTBRED MICE
Has larger litters and nurtures young better than inbred pigmented strains
• Homozygous for the same coat color loci as the C57BL/6
• Useful for germline test mating of targeted mutation chimeras created using 129 agouti Embryonic Stem (ES) cell lines

Origin: The Black Swiss outbred model was developed by Dr. Carl Hansen of the NIH Genetic Resource. N:NIH Swiss outbred mice were backcrossed to a C57BL/6N inbred background to generate a hybrid mouse heterozygous for the agouti locus. The mice were backcrossed ten generations (N10) to eliminate the agouti  and albino alleles. Taconic received NTac:NIHBS litters in 1991. The mice were derived by caesarean derivatio in 1992 and rederived by embryo transfer in 2005 and 2009. The Taconic Black Swiss is maintained in a closed barrier using a rotational breeding scheme to maximize reproductive performance and heterozygosity,
however SNPs testing has confirmed that the model is only slightly heterozygous and thus considered a partially inbred model..
Color: Black  Coat Color Loci: a
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silicare(½ð±Ò+1): 2011-08-09 11:36:36
sheryl99(½ð±Ò+2): ûÓÐÕÒµ½Å¶£¬²»¹ý·Ç³£¸Ðл°¡ 2011-08-09 16:37:17
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