Preferential Y-Y pairing and synapsis and abnormal meiotic recombination in a 47,XYY man with non obstructive azoospermia

Table 3 Recombination on YY bivalents in the 47, XYY patient

Cell type	No. of cells analyzed	No. (%^a) of cells with recombination in Yp	No. (%^a) of cells with recombination in Yq	Total recombination in YY bivalent (%)
YY partially synapsed	47	21 (44.7 %)^a	0	44.7%^a
YY completely synapsed	18	4(22.2 %)^a	2 (11.1 %)^a	33.3%^a
Total (%)	65	25 (38.5 %)^a	2 (3.0 %)^a	41.5%^a

Sex chromosomes recombination was determined by MLH1 signals
^aThe percentages were calculated by dividing the number of cells showing recombination on Y chromosomes with the number of cells analyzed

ISSN: 1755-8166