Mapping of two genetic loci, Ten-1 and Ten-2, associated with thymus enlargement in BUF/Mna rats

Y. Murakumo, M. Takahashi, N. Sharma, A. Arakawa, M. Saito, H. Amo, M. Matsuyama

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12 Citations (Scopus)

Abstract

The thymoma-prone BUF/Mna rat is a useful model for human thymoma. Thymoma develops spontaneously in these rats at an incidence of nearly 100%. At pre-thymoma age, BUF/Mna rats have extremely large thymuses when compared with those of rats of the other strains, suggesting the presence of genes that regulate the thymus enlargement. We performed linkage study to identify the genetic loci associated with thymus enlargement in {(WKY/NCrj x BUF/Mna) F1 x BUF/Mna} backcross rats. Linkage study showed the significant associations between thymus size and markers on Chromosomes (Chrs) 1 and 13, suggesting the presence of two genes. Ten-1 and Ten-2, which regulate the thymus enlargement. Ten-1 was located between myosin light chain, muscle 2 (MYL2) and D1Mgh11 loci on Chr 1, and Ten-2 was located between synaptotagmin II (SYT2) and D13N2 loci on Chr 13.

Original languageEnglish
Pages (from-to)505-508
Number of pages4
JournalMammalian Genome
Volume7
Issue number7
DOIs
Publication statusPublished - 01-01-1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Genetics

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