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Differing mechanisms of meiotic segregation in spermatozoa from three carriers of a pericentric inversion of chromosome 8.

Abstract：

OBJECTIVE:To determine the meiotic segregation of a pericentric inversion of chromosome 8 in three carriers. DESIGN:Analysis of sperm nuclei by fluorescence in situ hybridization (FISH). SETTING:University hospital. PATIENT(S):Three males with an inv(8). INTERVENTION(S):Triple FISH with the 8q and 8p subtelomeres and the specific alphoid of chromosome 9 probes. MAIN OUTCOME MEASURE(S):Meiotic segregation differences between carriers. RESULT(S):The frequencies of nonrecombinant gametes were 97%, 60.94%, and 61.03%. The frequencies of recombinant sperm were 1.44%, 37.71%, and 37.70%, whereas the size of the inverted segment represented 31%, 61%, and 80% of the size of the whole chromosome 8. CONCLUSION(S):Many factors seem to influence the production of recombinant chromosomes: the affected chromosome and involved region, location of the breakpoints, or size of the inverted segment. Our results show that the rate of recombination varies principally according to the size of the inverted segment.

journal_name

Fertil Steril

journal_title

Fertility and sterility

authors

Caer E,Perrin A,Douet-Guilbert N,Amice V,De Braekeleer M,Morel F

doi

10.1016/j.fertnstert.2007.04.056

subject

Has Abstract

pub_date

2008-06-01 00:00:00

pages

1637-40

issue

6

eissn

0015-0282

issn

1556-5653

pii

S0015-0282(07)01025-4

journal_volume

89

pub_type

杂志文章

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