Publication Date:
2002-06-08
Description:
Analysis of recombination between loci (linkage analysis) has been a cornerstone of human genetic research, enabling investigators to localize and, ultimately, identify genetic loci. However, despite these efforts little is known about patterns of meiotic exchange in human germ cells or the mechanisms that control these patterns. Using recently developed immunofluorescence methodology to examine exchanges in human spermatocytes, we have identified remarkable variation in the rate of recombination within and among individuals. Subsequent analyses indicate that, in humans and mice, this variation is linked to differences in the length of the synaptonemal complex. Thus, at least in mammals, a physical structure, the synaptonemal complex, reflects genetic rather than physical distance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lynn, Audrey -- Koehler, Kara E -- Judis, LuAnn -- Chan, Ernest R -- Cherry, Jonathan P -- Schwartz, Stuart -- Seftel, Allen -- Hunt, Patricia A -- Hassold, Terry J -- HD07518/HD/NICHD NIH HHS/ -- HD21341/HD/NICHD NIH HHS/ -- HD37502/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2002 Jun 21;296(5576):2222-5. Epub 2002 Jun 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Case Western Reserve University, Cleveland, OH, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12052900" target="_blank"〉PubMed〈/a〉
Keywords:
Adaptor Proteins, Signal Transducing
;
Adult
;
Aged
;
Animals
;
Carrier Proteins
;
Chromosomes, Human/physiology/*ultrastructure
;
Crossing Over, Genetic
;
Female
;
Humans
;
In Situ Hybridization, Fluorescence
;
Male
;
*Meiosis
;
Mice
;
Mice, Inbred Strains
;
Microscopy, Fluorescence
;
Middle Aged
;
Neoplasm Proteins/analysis
;
Nuclear Proteins
;
*Recombination, Genetic
;
Spermatocytes/physiology/*ultrastructure
;
Synaptonemal Complex/*ultrastructure
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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