Localization of insulin-2 (Ins-2) and the obesity mutant tubby (tub) to distinct regions of mouse chromosome 7

Julie M. Jones, Miriam H. Meisler, Michael F Seldin, Barbara K. Lee, Eva M. Eicher

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

A DNA mapping panel derived from an interspecific backcross was used to position the mouse insulin-2 locus (Ins-2) on Chromosome 7, near H19 (0/114 recombinants) and Th (1/114 recombinants). Ins-2 is part of a human-mouse conserved linkage group that includes Th, H19, and Igf-2. Analysis of segregation in the F2 generation from the cross C57BL/6J-tub/tub × CAST/Ei demonstrated that Ins-2 and the obesity mutant tubby (tub) are distinct loci, thus eliminating Ins-2 as a candidate gene for tub. These results also refine the estimated genetic distance between tub and Hbb to 2.4 ± 1.4 cM. The predicted location for a human homolog of tubby is HSA 11p15.

Original languageEnglish (US)
Pages (from-to)197-199
Number of pages3
JournalGenomics
Volume14
Issue number1
DOIs
StatePublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Genetics

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