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Gene Set #136931 - vertebral trabecular bone trait 15 (Vtbt15, Published QTL Chr 13)

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Description: QTL associated with vertebral trabecular bone trait 15. This interval was obtained by using a fixed interval width of 25 Mbp around the peak marker (45159272)
Uploaded: 02 Apr 2012
Species: Mus musculus
URI: http://www.informatics.jax.org/searches/accession_report.cgi?id=MGI:3045057
Authors: Bouxsein ML, Uchiyama T, Rosen CJ, Shultz KL, Donahue LR, Turner CH, Sen S, Churchill GA, Mller R, Beamer WG
Title: Mapping quantitative trait loci for vertebral trabecular bone volume fraction and microarchitecture in mice.
Journal: Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research Apr 2004 , Vol 19 , pp. 587-99
Abstract: BMD, which reflects both cortical and cancellous bone, has been shown to be highly heritable; however, little is known about the specific genetic factors regulating trabecular bone. Genome-wide linkage analysis of vertebral trabecular bone traits in 914 adult female mice from the F2 intercross of C57BL/6J and C3H/HeJ inbred strains revealed a pattern of genetic regulation derived from 13 autosomes, with 5-13 QTLs associated with each of the traits. Ultimately, identification of genes that regulate trabecular bone traits may yield important information regarding mechanisms that regulate mechanical integrity of the skeleton.Both cortical and cancellous bone influence the mechanical integrity of the skeleton, with the relative contribution of each varying with skeletal site. Whereas areal BMD, which reflects both cortical and cancellous bone, has been shown to be highly heritable, little is known about the genetic determinants of trabecular bone density and architecture.To identify heritable determinants of vertebral trabecular bone traits, we evaluated the fifth lumbar vertebra from 914 adult female mice from the F2 intercross of C57BL/6J (B6) and C3H/HeJ (C3H) progenitor strains. High-resolution microCT was used to assess total volume (TV), bone volume (BV), bone volume fraction (BV/TV), trabecular thickness (Tb.Th), separation (Tb.Sp), and number (Tb.N) of the trabecular bone in the vertebral body in the progenitors (n = 8/strain) and female B6C3H-F2 progeny (n = 914). Genomic DNA from F2 progeny was screened for 118 PCR-based markers discriminating B6 and C3H alleles on all 19 autosomes.Despite having a slightly larger trabecular bone compartment, C3H progenitors had dramatically lower vertebral trabecular BV/TV (-53%) and Tb.N (-40%) and higher Tb.Sp (71%) compared with B6 progenitors (p < 0.001 for all). Genome-wide quantitative trait analysis revealed a pattern of genetic regulation derived from 13 autosomes, with 5-13 quantitative trait loci (QTLs) associated with each of the vertebral trabecular bone traits, exhibiting adjusted LOD scores ranging from 3.1 to 14.4. The variance explained in the F2 population by each of the individual QTL after adjusting for contributions from other QTLs ranged from 0.8% to 5.9%. Taken together, the QTLs explained 22-33% of the variance of the vertebral traits in the F2 population. In conclusion, we observed a complex pattern of genetic regulation for vertebral trabecular bone volume fraction and microarchitecture using the F2 intercross of the C57BL/6J and C3H/HeJ inbred mouse strains and identified a number of QTLs, some of which are distinct from those that were previously identified for total femoral and vertebral BMD. Identification of genes that regulate trabecular bone traits may ultimately yield important information regarding the mechanisms that regulate the acquisition and maintenance of mechanical integrity of the skeleton.   PUBMED: 15005846
Find other GeneSets from this publication.
Ontological Associations:
  • D001842: Bone and Bones (Description, NCBO Annotator; Publication, NCBO Annotator)
  • D012926: Social Control, Formal (Publication, NCBO Annotator)
  • D051379: Mice (Publication, NCBO Annotator)
  • D015519: Bone Density (Publication, NCBO Annotator; GeneWeaver Primary Inferred)
  • D040641: Quantitative Trait Loci (Publication, NCBO Annotator)
  • D008815: Mice, Inbred Strains (Publication, NCBO Annotator)
  • EDAM_data:1860: QTL map (GeneWeaver Data Type)
  • D004247: DNA (Publication, NCBO Annotator)
  • D008283: Maintenance (Publication, NCBO Annotator)
  • D055114: X-Ray Microtomography (Publication, NCBO Annotator)
  • D007062: Identification (Psychology) (Publication, NCBO Annotator)
  • D008126: Lod Score (Publication, NCBO Annotator)
  • MA:0002782: trabecular bone (Description, NCBO Annotator; Publication, NCBO Annotator)
  • D013131: Spine (Publication, NCBO Annotator)
  • D012863: Skeleton (Publication, NCBO Annotator)
  • D000328: Adult (Publication, NCBO Annotator)
  • MA:0000312: lumbar vertebra (Publication, NCBO Annotator)
  • MA:0001457: vertebral body (Publication, NCBO Annotator)
  • MA:0001459: bone (Description, NCBO Annotator; Publication, NCBO Annotator)
  • D000483: Alleles (Publication, NCBO Annotator)
  • D004243: Divorce (Publication, NCBO Annotator)
  • D001108: Architecture as Topic (Publication, NCBO Annotator)
  • MA:0000309: vertebra (Publication, NCBO Annotator)

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