PMID- 11071136
OWN - NLM
STAT- MEDLINE
DCOM- 20001219
LR  - 20061115
IS  - 0093-691X (Print)
IS  - 0093-691X (Linking)
VI  - 54
IP  - 4
DP  - 2000 Sep 1
TI  - 60,XY/60,XX chimerism in the germ cell line of mature bulls born in heterosexual 
      twinning.
PG  - 621-7
AB  - According to present knowledge there is a germ cell chimerism (XY/XX) in young 
      bulls born in heterosexual twinning due to exchange of primordial germ cells in 
      embryonic life. These germ cells were believed to have been eliminated in the 
      young bull. Two-color fluorescence in situ hybridization (FISH) identification of 
      the sex chromosomes by biotinylated and digoxygenin labeled probes have been 
      used. The material consisted of three bulls born in heterosexual twinning. The 
      results obtained indicated that even mature bulls (more than two years old) 
      demonstrate spermatogonial chimerism. Several authors state that the bulls with 
      blood cell chimerism, originating from dizygous twinning, are characterized by 
      decreased fertility. Changes of the sex ratio of offspring due to proliferation 
      of the female cells have also been proposed. The present observations should give 
      a renewed interest in checking the possibility of survival and differentiation of 
      germ cells from the female partner in the germ cell lines.
FAU - Rejduch, B
AU  - Rejduch B
AD  - National Research Institute of Animal Production, Department of Immuno- and 
      Cytogenetics, Balice/Krakow, Poland.
FAU - Slota, E
AU  - Slota E
FAU - Gustavsson, I
AU  - Gustavsson I
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Theriogenology
JT  - Theriogenology
JID - 0421510
SB  - IM
MH  - Animals
MH  - Cattle/*genetics
MH  - *Chimera
MH  - Female
MH  - *Germ Cells
MH  - In Situ Hybridization, Fluorescence/veterinary
MH  - Karyotyping
MH  - Male
MH  - *Sex Chromosomes
MH  - Spermatogonia/chemistry
MH  - Twins
EDAT- 2000/11/09 11:00
MHDA- 2001/02/28 10:01
CRDT- 2000/11/09 11:00
PHST- 2000/11/09 11:00 [pubmed]
PHST- 2001/02/28 10:01 [medline]
PHST- 2000/11/09 11:00 [entrez]
AID - S0093-691X(00)00377-0 [pii]
AID - 10.1016/S0093-691X(00)00377-0 [doi]
PST - ppublish
SO  - Theriogenology. 2000 Sep 1;54(4):621-7. doi: 10.1016/S0093-691X(00)00377-0.