PMID- 8854879 OWN - NLM STAT- MEDLINE DCOM- 19970218 LR - 20071115 IS - 0009-5915 (Print) IS - 0009-5915 (Linking) VI - 105 IP - 4 DP - 1996 Oct TI - Aneuploid epididymal sperm detected in chromosomally normal and Robertsonian translocation-bearing mice using a new three-chromosome FISH method. PG - 204-10 AB - We present a new method to detect epididymal sperm aneuploidy (ESA) in mice using simultaneous fluorescence in situ hybridization (FISH) with DNA probes specific for mouse chromosomes X, Y and 8. The method was applied to Robertsonian (Rb) translocation (8.14) heterozygotes and homozygotes as well as the chromosomally normal B6C3F1. The sex ratios of sperm did not differ from the expected 1:1 and the hybridization efficiencies were approximately 99.7% for over 60 000 sperm analyzed. Mice heterozygous for Rb (8.14) produced about tenfold higher rates of sperm with chromosome 8 hyperhaploidy than did Rb (8.14) homozygotes or chromosomally normal mice, while frequencies of sperm with hyperhaploidies for chromosomes X and Y were unaffected in all three lines of mice. Hyperhaploid frequencies obtained with the ESA method were consistent with those of the previous testicular FISH method and were validated by published data obtained by conventional cytogenetic analyses (meiotic metaphase II and first cleavage). Thus, the mouse three-chromosome ESA assay together with the previously developed aneuploidy assay for human sperm constitute a promising pair of interspecific biomarkers for comparative studies of the genetic and physiologic mechanisms of the induction and persistence of aneuploidy in male germ cells. FAU - Lowe, X AU - Lowe X AD - Biology and Biotechnology Research Program, L-452, P. O. Box 808, 7000 East Avenue, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA. wyrobek1@llnl.gov FAU - O'Hogan, S AU - O'Hogan S FAU - Moore, D 2nd AU - Moore D 2nd FAU - Bishop, J AU - Bishop J FAU - Wyrobek, A AU - Wyrobek A LA - eng GR - IAG Y01-ES-10203-00/ES/NIEHS NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Research Support, U.S. Gov't, P.H.S. PL - Austria TA - Chromosoma JT - Chromosoma JID - 2985138R SB - IM MH - *Aneuploidy MH - Animals MH - Cytogenetics/methods MH - Epididymis/*cytology MH - Evaluation Studies as Topic MH - Female MH - Heterozygote MH - Homozygote MH - In Situ Hybridization, Fluorescence/*methods MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Mutant Strains MH - Spermatozoa/*physiology MH - *Translocation, Genetic EDAT- 1996/10/01 00:00 MHDA- 2001/03/28 10:01 CRDT- 1996/10/01 00:00 PHST- 1996/10/01 00:00 [pubmed] PHST- 2001/03/28 10:01 [medline] PHST- 1996/10/01 00:00 [entrez] PST - ppublish SO - Chromosoma. 1996 Oct;105(4):204-10.