Vertical transmission of the Yq AZFc microdeletion from father to son over two or three generations in infertile Han Chinese families.
This study was carried out to analyze the vertical transmission of Yq AZFc microdeletions from father to son in infertile Han Chinese families to investigate genetic factors and family background affecting fertility status. The peripheral blood of infertile males in 19 Han families was extracted and screened with modified multiplex polymerase chain reaction (PCR). Family trees were drawn according to fertility status and clinical characteristics of the subjects. The vertical transmission of Yq AZFc microdeletions was detected in six cases of 19 investigated families (31.6%, 6/19). Although both fathers and sons showed a similar type of Yq AZFc deletion, the fathers were fertile, whereas the sons were infertile and showed severe oligozoospermia. The vertical transmission of Yq AZFc microdeletion from fertile fathers to infertile sons over generations is not rare. This has different effects on fertility status in fathers and sons in Han Chinese families. Both genetic factors and family background affect spermatogenetic phenotypes.
Zhu
Xiao-Bin
XB
Shanghai Human Sperm Bank, Renji Hospital, Shanghai Institute of Andrology, Shanghai Jiao Tong University School of Medicine, China.
Liu
Yu-Lin
YL
Zhang
Wei
W
Ping
Ping
P
Cao
Xiao-Rong
XR
Liu
Yong
Y
Huang
Yi-Ran
YR
Li
Zheng
Z
D000328:Adult; D000368:Aged; D002675:Child, Preschool; D002681:China; D005006:Ethnicity; D005260:Female; D017353:Gene Deletion; D006801:Humans; D007248:Infertility, Male / Q000235:genetics*; D008297:Male; D010375:Pedigree; D016133:Polymerase Chain Reaction